update unbound from upstream

15 files changed, 9804 insertions, 0 deletions

diff --git a/external/unbound/sldns/keyraw.c b/external/unbound/sldns/keyraw.c
new file mode 100644
index 000000000..59e8000f5
--- /dev/null
+++ b/external/unbound/sldns/keyraw.c
@@ -0,0 +1,370 @@
+/*
+ * keyraw.c - raw key operations and conversions
+ *
+ * (c) NLnet Labs, 2004-2008
+ *
+ * See the file LICENSE for the license
+ */
+/**
+ * \file
+ * Implementation of raw DNSKEY functions (work on wire rdata).
+ */
+
+#include "config.h"
+#include "sldns/keyraw.h"
+#include "sldns/rrdef.h"
+
+#ifdef HAVE_SSL
+#include <openssl/ssl.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+#include <openssl/err.h>
+#include <openssl/md5.h>
+#ifdef HAVE_OPENSSL_ENGINE_H
+#  include <openssl/engine.h>
+#endif
+#endif /* HAVE_SSL */
+
+size_t
+sldns_rr_dnskey_key_size_raw(const unsigned char* keydata,
+	const size_t len, int alg)
+{
+	/* for DSA keys */
+	uint8_t t;
+	
+	/* for RSA keys */
+	uint16_t exp;
+	uint16_t int16;
+	
+	switch ((sldns_algorithm)alg) {
+	case LDNS_DSA:
+	case LDNS_DSA_NSEC3:
+		if (len > 0) {
+			t = keydata[0];
+			return (64 + t*8)*8;
+		} else {
+			return 0;
+		}
+		break;
+	case LDNS_RSAMD5:
+	case LDNS_RSASHA1:
+	case LDNS_RSASHA1_NSEC3:
+#ifdef USE_SHA2
+	case LDNS_RSASHA256:
+	case LDNS_RSASHA512:
+#endif
+		if (len > 0) {
+			if (keydata[0] == 0) {
+				/* big exponent */
+				if (len > 3) {
+					memmove(&int16, keydata + 1, 2);
+					exp = ntohs(int16);
+					return (len - exp - 3)*8;
+				} else {
+					return 0;
+				}
+			} else {
+				exp = keydata[0];
+				return (len-exp-1)*8;
+			}
+		} else {
+			return 0;
+		}
+		break;
+#ifdef USE_GOST
+	case LDNS_ECC_GOST:
+		return 512;
+#endif
+#ifdef USE_ECDSA
+        case LDNS_ECDSAP256SHA256:
+                return 256;
+        case LDNS_ECDSAP384SHA384:
+                return 384;
+#endif
+	default:
+		return 0;
+	}
+}
+
+uint16_t sldns_calc_keytag_raw(uint8_t* key, size_t keysize)
+{
+	if(keysize < 4) {
+		return 0;
+	}
+	/* look at the algorithm field, copied from 2535bis */
+	if (key[3] == LDNS_RSAMD5) {
+		uint16_t ac16 = 0;
+		if (keysize > 4) {
+			memmove(&ac16, key + keysize - 3, 2);
+		}
+		ac16 = ntohs(ac16);
+		return (uint16_t) ac16;
+	} else {
+		size_t i;
+		uint32_t ac32 = 0;
+		for (i = 0; i < keysize; ++i) {
+			ac32 += (i & 1) ? key[i] : key[i] << 8;
+		}
+		ac32 += (ac32 >> 16) & 0xFFFF;
+		return (uint16_t) (ac32 & 0xFFFF);
+	}
+}
+
+#ifdef HAVE_SSL
+#ifdef USE_GOST
+/** store GOST engine reference loaded into OpenSSL library */
+ENGINE* sldns_gost_engine = NULL;
+
+int
+sldns_key_EVP_load_gost_id(void)
+{
+	static int gost_id = 0;
+	const EVP_PKEY_ASN1_METHOD* meth;
+	ENGINE* e;
+
+	if(gost_id) return gost_id;
+
+	/* see if configuration loaded gost implementation from other engine*/
+	meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
+	if(meth) {
+		EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
+		return gost_id;
+	}
+
+	/* see if engine can be loaded already */
+	e = ENGINE_by_id("gost");
+	if(!e) {
+		/* load it ourself, in case statically linked */
+		ENGINE_load_builtin_engines();
+		ENGINE_load_dynamic();
+		e = ENGINE_by_id("gost");
+	}
+	if(!e) {
+		/* no gost engine in openssl */
+		return 0;
+	}
+	if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
+		ENGINE_finish(e);
+		ENGINE_free(e);
+		return 0;
+	}
+
+	meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
+	if(!meth) {
+		/* algo not found */
+		ENGINE_finish(e);
+		ENGINE_free(e);
+		return 0;
+	}
+        /* Note: do not ENGINE_finish and ENGINE_free the acquired engine
+         * on some platforms this frees up the meth and unloads gost stuff */
+        sldns_gost_engine = e;
+	
+	EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
+	return gost_id;
+} 
+
+void sldns_key_EVP_unload_gost(void)
+{
+        if(sldns_gost_engine) {
+                ENGINE_finish(sldns_gost_engine);
+                ENGINE_free(sldns_gost_engine);
+                sldns_gost_engine = NULL;
+        }
+}
+#endif /* USE_GOST */
+
+DSA *
+sldns_key_buf2dsa_raw(unsigned char* key, size_t len)
+{
+	uint8_t T;
+	uint16_t length;
+	uint16_t offset;
+	DSA *dsa;
+	BIGNUM *Q; BIGNUM *P;
+	BIGNUM *G; BIGNUM *Y;
+
+	if(len == 0)
+		return NULL;
+	T = (uint8_t)key[0];
+	length = (64 + T * 8);
+	offset = 1;
+
+	if (T > 8) {
+		return NULL;
+	}
+	if(len < (size_t)1 + SHA_DIGEST_LENGTH + 3*length)
+		return NULL;
+
+	Q = BN_bin2bn(key+offset, SHA_DIGEST_LENGTH, NULL);
+	offset += SHA_DIGEST_LENGTH;
+
+	P = BN_bin2bn(key+offset, (int)length, NULL);
+	offset += length;
+
+	G = BN_bin2bn(key+offset, (int)length, NULL);
+	offset += length;
+
+	Y = BN_bin2bn(key+offset, (int)length, NULL);
+	offset += length;
+
+	/* create the key and set its properties */
+	if(!Q || !P || !G || !Y || !(dsa = DSA_new())) {
+		BN_free(Q);
+		BN_free(P);
+		BN_free(G);
+		BN_free(Y);
+		return NULL;
+	}
+#ifndef S_SPLINT_S
+	dsa->p = P;
+	dsa->q = Q;
+	dsa->g = G;
+	dsa->pub_key = Y;
+#endif /* splint */
+
+	return dsa;
+}
+
+RSA *
+sldns_key_buf2rsa_raw(unsigned char* key, size_t len)
+{
+	uint16_t offset;
+	uint16_t exp;
+	uint16_t int16;
+	RSA *rsa;
+	BIGNUM *modulus;
+	BIGNUM *exponent;
+
+	if (len == 0)
+		return NULL;
+	if (key[0] == 0) {
+		if(len < 3)
+			return NULL;
+		memmove(&int16, key+1, 2);
+		exp = ntohs(int16);
+		offset = 3;
+	} else {
+		exp = key[0];
+		offset = 1;
+	}
+
+	/* key length at least one */
+	if(len < (size_t)offset + exp + 1)
+		return NULL;
+
+	/* Exponent */
+	exponent = BN_new();
+	if(!exponent) return NULL;
+	(void) BN_bin2bn(key+offset, (int)exp, exponent);
+	offset += exp;
+
+	/* Modulus */
+	modulus = BN_new();
+	if(!modulus) {
+		BN_free(exponent);
+		return NULL;
+	}
+	/* length of the buffer must match the key length! */
+	(void) BN_bin2bn(key+offset, (int)(len - offset), modulus);
+
+	rsa = RSA_new();
+	if(!rsa) {
+		BN_free(exponent);
+		BN_free(modulus);
+		return NULL;
+	}
+#ifndef S_SPLINT_S
+	rsa->n = modulus;
+	rsa->e = exponent;
+#endif /* splint */
+
+	return rsa;
+}
+
+#ifdef USE_GOST
+EVP_PKEY*
+sldns_gost2pkey_raw(unsigned char* key, size_t keylen)
+{
+	/* prefix header for X509 encoding */
+	uint8_t asn[37] = { 0x30, 0x63, 0x30, 0x1c, 0x06, 0x06, 0x2a, 0x85, 
+		0x03, 0x02, 0x02, 0x13, 0x30, 0x12, 0x06, 0x07, 0x2a, 0x85, 
+		0x03, 0x02, 0x02, 0x23, 0x01, 0x06, 0x07, 0x2a, 0x85, 0x03, 
+		0x02, 0x02, 0x1e, 0x01, 0x03, 0x43, 0x00, 0x04, 0x40};
+	unsigned char encoded[37+64];
+	const unsigned char* pp;
+	if(keylen != 64) {
+		/* key wrong size */
+		return NULL;
+	}
+
+	/* create evp_key */
+	memmove(encoded, asn, 37);
+	memmove(encoded+37, key, 64);
+	pp = (unsigned char*)&encoded[0];
+
+	return d2i_PUBKEY(NULL, &pp, (int)sizeof(encoded));
+}
+#endif /* USE_GOST */
+
+#ifdef USE_ECDSA
+EVP_PKEY*
+sldns_ecdsa2pkey_raw(unsigned char* key, size_t keylen, uint8_t algo)
+{
+	unsigned char buf[256+2]; /* sufficient for 2*384/8+1 */
+        const unsigned char* pp = buf;
+        EVP_PKEY *evp_key;
+        EC_KEY *ec;
+	/* check length, which uncompressed must be 2 bignums */
+        if(algo == LDNS_ECDSAP256SHA256) {
+		if(keylen != 2*256/8) return NULL;
+                ec = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+        } else if(algo == LDNS_ECDSAP384SHA384) {
+		if(keylen != 2*384/8) return NULL;
+                ec = EC_KEY_new_by_curve_name(NID_secp384r1);
+        } else    ec = NULL;
+        if(!ec) return NULL;
+	if(keylen+1 > sizeof(buf)) { /* sanity check */
+                EC_KEY_free(ec);
+		return NULL;
+	}
+	/* prepend the 0x02 (from docs) (or actually 0x04 from implementation
+	 * of openssl) for uncompressed data */
+	buf[0] = POINT_CONVERSION_UNCOMPRESSED;
+	memmove(buf+1, key, keylen);
+        if(!o2i_ECPublicKey(&ec, &pp, (int)keylen+1)) {
+                EC_KEY_free(ec);
+                return NULL;
+        }
+        evp_key = EVP_PKEY_new();
+        if(!evp_key) {
+                EC_KEY_free(ec);
+                return NULL;
+        }
+        if (!EVP_PKEY_assign_EC_KEY(evp_key, ec)) {
+		EVP_PKEY_free(evp_key);
+		EC_KEY_free(ec);
+		return NULL;
+	}
+        return evp_key;
+}
+#endif /* USE_ECDSA */
+
+int
+sldns_digest_evp(unsigned char* data, unsigned int len, unsigned char* dest,
+	const EVP_MD* md)
+{
+	EVP_MD_CTX* ctx;
+	ctx = EVP_MD_CTX_create();
+	if(!ctx)
+		return 0;
+	if(!EVP_DigestInit_ex(ctx, md, NULL) ||
+		!EVP_DigestUpdate(ctx, data, len) ||
+		!EVP_DigestFinal_ex(ctx, dest, NULL)) {
+		EVP_MD_CTX_destroy(ctx);
+		return 0;
+	}
+	EVP_MD_CTX_destroy(ctx);
+	return 1;
+}
+#endif /* HAVE_SSL */
diff --git a/external/unbound/sldns/keyraw.h b/external/unbound/sldns/keyraw.h
new file mode 100644
index 000000000..8abe23509
--- /dev/null
+++ b/external/unbound/sldns/keyraw.h
@@ -0,0 +1,112 @@
+/*
+ * keyraw.h -- raw key and signature access and conversion
+ *
+ * Copyright (c) 2005-2008, NLnet Labs. All rights reserved.
+ *
+ * See LICENSE for the license.
+ *
+ */
+
+/**
+ * \file
+ *
+ * raw key and signature access and conversion
+ *
+ * Since those functions heavily rely op cryptographic operations,
+ * this module is dependent on openssl.
+ * 
+ */
+ 
+#ifndef LDNS_KEYRAW_H
+#define LDNS_KEYRAW_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#if LDNS_BUILD_CONFIG_HAVE_SSL
+#  include <openssl/ssl.h>
+#  include <openssl/evp.h>
+#endif /* LDNS_BUILD_CONFIG_HAVE_SSL */
+
+/**
+ * get the length of the keydata in bits
+ * \param[in] keydata the raw key data
+ * \param[in] len the length of the keydata
+ * \param[in] alg the cryptographic algorithm this is a key for
+ * \return the keysize in bits, or 0 on error
+ */
+size_t sldns_rr_dnskey_key_size_raw(const unsigned char *keydata,
+	const size_t len, int alg);
+
+/**
+ * Calculates keytag of DNSSEC key, operates on wireformat rdata.
+ * \param[in] key the key as uncompressed wireformat rdata.
+ * \param[in] keysize length of key data.
+ * \return the keytag
+ */
+uint16_t sldns_calc_keytag_raw(uint8_t* key, size_t keysize);
+
+#if LDNS_BUILD_CONFIG_HAVE_SSL
+/** 
+ * Get the PKEY id for GOST, loads GOST into openssl as a side effect.
+ * Only available if GOST is compiled into the library and openssl.
+ * \return the gost id for EVP_CTX creation.
+ */
+int sldns_key_EVP_load_gost_id(void);
+
+/** Release the engine reference held for the GOST engine. */
+void sldns_key_EVP_unload_gost(void);
+
+/**
+ * Like sldns_key_buf2dsa, but uses raw buffer.
+ * \param[in] key the uncompressed wireformat of the key.
+ * \param[in] len length of key data
+ * \return a DSA * structure with the key material
+ */
+DSA *sldns_key_buf2dsa_raw(unsigned char* key, size_t len);
+
+/**
+ * Converts a holding buffer with key material to EVP PKEY in openssl.
+ * Only available if ldns was compiled with GOST.
+ * \param[in] key data to convert
+ * \param[in] keylen length of the key data
+ * \return the key or NULL on error.
+ */
+EVP_PKEY* sldns_gost2pkey_raw(unsigned char* key, size_t keylen);
+
+/**
+ * Converts a holding buffer with key material to EVP PKEY in openssl.
+ * Only available if ldns was compiled with ECDSA.
+ * \param[in] key data to convert
+ * \param[in] keylen length of the key data
+ * \param[in] algo precise algorithm to initialize ECC group values.
+ * \return the key or NULL on error.
+ */
+EVP_PKEY* sldns_ecdsa2pkey_raw(unsigned char* key, size_t keylen, uint8_t algo);
+
+/**
+ * Like sldns_key_buf2rsa, but uses raw buffer.
+ * \param[in] key the uncompressed wireformat of the key.
+ * \param[in] len length of key data
+ * \return a RSA * structure with the key material
+ */
+RSA *sldns_key_buf2rsa_raw(unsigned char* key, size_t len);
+
+/**
+ * Utility function to calculate hash using generic EVP_MD pointer.
+ * \param[in] data the data to hash.
+ * \param[in] len  length of data.
+ * \param[out] dest the destination of the hash, must be large enough.
+ * \param[in] md the message digest to use.
+ * \return true if worked, false on failure.
+ */
+int sldns_digest_evp(unsigned char* data, unsigned int len, 
+	unsigned char* dest, const EVP_MD* md);
+
+#endif /* LDNS_BUILD_CONFIG_HAVE_SSL */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_KEYRAW_H */
diff --git a/external/unbound/sldns/parse.c b/external/unbound/sldns/parse.c
new file mode 100644
index 000000000..35dee7196
--- /dev/null
+++ b/external/unbound/sldns/parse.c
@@ -0,0 +1,470 @@
+/*
+ * a generic (simple) parser. Use to parse rr's, private key
+ * information and /etc/resolv.conf files
+ *
+ * a Net::DNS like library for C
+ * LibDNS Team @ NLnet Labs
+ * (c) NLnet Labs, 2005-2006
+ * See the file LICENSE for the license
+ */
+#include "config.h"
+#include "sldns/parse.h"
+#include "sldns/parseutil.h"
+#include "sldns/sbuffer.h"
+
+#include <limits.h>
+#include <strings.h>
+
+sldns_lookup_table sldns_directive_types[] = {
+        { LDNS_DIR_TTL, "$TTL" },
+        { LDNS_DIR_ORIGIN, "$ORIGIN" },
+        { LDNS_DIR_INCLUDE, "$INCLUDE" },
+        { 0, NULL }
+};
+
+/* add max_limit here? */
+ssize_t
+sldns_fget_token(FILE *f, char *token, const char *delim, size_t limit)
+{
+	return sldns_fget_token_l(f, token, delim, limit, NULL);
+}
+
+ssize_t
+sldns_fget_token_l(FILE *f, char *token, const char *delim, size_t limit, int *line_nr)
+{
+	int c, prev_c;
+	int p; /* 0 -> no parenthese seen, >0 nr of ( seen */
+	int com, quoted;
+	char *t;
+	size_t i;
+	const char *d;
+	const char *del;
+
+	/* standard delimeters */
+	if (!delim) {
+		/* from isspace(3) */
+		del = LDNS_PARSE_NORMAL;
+	} else {
+		del = delim;
+	}
+
+	p = 0;
+	i = 0;
+	com = 0;
+	quoted = 0;
+	prev_c = 0;
+	t = token;
+	if (del[0] == '"') {
+		quoted = 1;
+	}
+	while ((c = getc(f)) != EOF) {
+		if (c == '\r') /* carriage return */
+			c = ' ';
+		if (c == '(' && prev_c != '\\' && !quoted) {
+			/* this only counts for non-comments */
+			if (com == 0) {
+				p++;
+			}
+			prev_c = c;
+			continue;
+		}
+
+		if (c == ')' && prev_c != '\\' && !quoted) {
+			/* this only counts for non-comments */
+			if (com == 0) {
+				p--;
+			}
+			prev_c = c;
+			continue;
+		}
+
+		if (p < 0) {
+			/* more ) then ( - close off the string */
+			*t = '\0';
+			return 0;
+		}
+
+		/* do something with comments ; */
+		if (c == ';' && quoted == 0) {
+			if (prev_c != '\\') {
+				com = 1;
+			}
+		}
+		if (c == '\"' && com == 0 && prev_c != '\\') {
+			quoted = 1 - quoted;
+		}
+
+		if (c == '\n' && com != 0) {
+			/* comments */
+			com = 0;
+			*t = ' ';
+			if (line_nr) {
+				*line_nr = *line_nr + 1;
+			}
+			if (p == 0 && i > 0) {
+				goto tokenread;
+			} else {
+				prev_c = c;
+				continue;
+			}
+		}
+
+		if (com == 1) {
+			*t = ' ';
+			prev_c = c;
+			continue;
+		}
+
+		if (c == '\n' && p != 0 && t > token) {
+			/* in parentheses */
+			if (line_nr) {
+				*line_nr = *line_nr + 1;
+			}
+			*t++ = ' ';
+			prev_c = c;
+			continue;
+		}
+
+		/* check if we hit the delim */
+		for (d = del; *d; d++) {
+			if (c == *d && i > 0 && prev_c != '\\' && p == 0) {
+				if (c == '\n' && line_nr) {
+					*line_nr = *line_nr + 1;
+				}
+				goto tokenread;
+			}
+		}
+		if (c != '\0' && c != '\n') {
+			i++;
+		}
+		if (limit > 0 && (i >= limit || (size_t)(t-token) >= limit)) {
+			*t = '\0';
+			return -1;
+		}
+		if (c != '\0' && c != '\n') {
+			*t++ = c;
+		}
+		if (c == '\\' && prev_c == '\\')
+			prev_c = 0;
+		else	prev_c = c;
+	}
+	*t = '\0';
+	if (c == EOF) {
+		return (ssize_t)i;
+	}
+
+	if (i == 0) {
+		/* nothing read */
+		return -1;
+	}
+	if (p != 0) {
+		return -1;
+	}
+	return (ssize_t)i;
+
+tokenread:
+	if(*del == '"')
+		/* do not skip over quotes after the string, they are part
+		 * of the next string.  But skip over whitespace (if needed)*/
+		sldns_fskipcs_l(f, del+1, line_nr);
+	else	sldns_fskipcs_l(f, del, line_nr);
+	*t = '\0';
+	if (p != 0) {
+		return -1;
+	}
+
+	return (ssize_t)i;
+}
+
+ssize_t
+sldns_fget_keyword_data(FILE *f, const char *keyword, const char *k_del, char *data,
+               const char *d_del, size_t data_limit)
+{
+       return sldns_fget_keyword_data_l(f, keyword, k_del, data, d_del,
+		       data_limit, NULL);
+}
+
+ssize_t
+sldns_fget_keyword_data_l(FILE *f, const char *keyword, const char *k_del, char *data,
+               const char *d_del, size_t data_limit, int *line_nr)
+{
+       /* we assume: keyword|sep|data */
+       char *fkeyword;
+       ssize_t i;
+
+       if(strlen(keyword) >= LDNS_MAX_KEYWORDLEN)
+               return -1;
+       fkeyword = (char*)malloc(LDNS_MAX_KEYWORDLEN);
+       if(!fkeyword)
+               return -1;
+
+       i = sldns_fget_token(f, fkeyword, k_del, LDNS_MAX_KEYWORDLEN);
+       if(i==0 || i==-1) {
+               free(fkeyword);
+               return -1;
+       }
+
+       /* case??? i instead of strlen? */
+       if (strncmp(fkeyword, keyword, LDNS_MAX_KEYWORDLEN - 1) == 0) {
+               /* whee! */
+               /* printf("%s\n%s\n", "Matching keyword", fkeyword); */
+               i = sldns_fget_token_l(f, data, d_del, data_limit, line_nr);
+               free(fkeyword);
+               return i;
+       } else {
+               /*printf("no match for %s (read: %s)\n", keyword, fkeyword);*/
+               free(fkeyword);
+               return -1;
+       }
+}
+
+int
+sldns_bgetc(sldns_buffer *buffer)
+{
+	if (!sldns_buffer_available_at(buffer, buffer->_position, sizeof(uint8_t))) {
+		sldns_buffer_set_position(buffer, sldns_buffer_limit(buffer));
+		/* sldns_buffer_rewind(buffer);*/
+		return EOF;
+	}
+	return (int)sldns_buffer_read_u8(buffer);
+}
+
+ssize_t
+sldns_bget_token(sldns_buffer *b, char *token, const char *delim, size_t limit)
+{
+	return sldns_bget_token_par(b, token, delim, limit, NULL, NULL);
+}
+
+ssize_t
+sldns_bget_token_par(sldns_buffer *b, char *token, const char *delim,
+	size_t limit, int* par, const char* skipw)
+{
+	int c, lc;
+	int p; /* 0 -> no parenthese seen, >0 nr of ( seen */
+	int com, quoted;
+	char *t;
+	size_t i;
+	const char *d;
+	const char *del;
+
+	/* standard delimiters */
+	if (!delim) {
+		/* from isspace(3) */
+		del = LDNS_PARSE_NORMAL;
+	} else {
+		del = delim;
+	}
+
+	p = (par?*par:0);
+	i = 0;
+	com = 0;
+	quoted = 0;
+	t = token;
+	lc = 0;
+	if (del[0] == '"') {
+		quoted = 1;
+	}
+
+	while ((c = sldns_bgetc(b)) != EOF) {
+		if (c == '\r') /* carriage return */
+			c = ' ';
+		if (c == '(' && lc != '\\' && !quoted) {
+			/* this only counts for non-comments */
+			if (com == 0) {
+				if(par) (*par)++;
+				p++;
+			}
+			lc = c;
+			continue;
+		}
+
+		if (c == ')' && lc != '\\' && !quoted) {
+			/* this only counts for non-comments */
+			if (com == 0) {
+				if(par) (*par)--;
+				p--;
+			}
+			lc = c;
+			continue;
+		}
+
+		if (p < 0) {
+			/* more ) then ( */
+			*t = '\0';
+			return 0;
+		}
+
+		/* do something with comments ; */
+		if (c == ';' && quoted == 0) {
+			if (lc != '\\') {
+				com = 1;
+			}
+		}
+		if (c == '"' && com == 0 && lc != '\\') {
+			quoted = 1 - quoted;
+		}
+
+		if (c == '\n' && com != 0) {
+			/* comments */
+			com = 0;
+			*t = ' ';
+			lc = c;
+			continue;
+		}
+
+		if (com == 1) {
+			*t = ' ';
+			lc = c;
+			continue;
+		}
+
+		if (c == '\n' && p != 0) {
+			/* in parentheses */
+			/* do not write ' ' if we want to skip spaces */
+			if(!(skipw && (strchr(skipw, c)||strchr(skipw, ' '))))
+				*t++ = ' ';
+			lc = c;
+			continue;
+		}
+
+		/* check to skip whitespace at start, but also after ( */
+		if(skipw && i==0 && !com && !quoted && lc != '\\') {
+			if(strchr(skipw, c)) {
+				lc = c;
+				continue;
+			}
+		}
+
+		/* check if we hit the delim */
+		for (d = del; *d; d++) {
+			/* we can only exit if no parens or user tracks them */
+                        if (c == *d && lc != '\\' && (p == 0 || par)) {
+				goto tokenread;
+                        }
+		}
+
+		i++;
+		if (limit > 0 && (i >= limit || (size_t)(t-token) >= limit)) {
+			*t = '\0';
+			return -1;
+		}
+		*t++ = c;
+
+		if (c == '\\' && lc == '\\') {
+			lc = 0;
+		} else {
+			lc = c;
+		}
+	}
+	*t = '\0';
+	if (i == 0) {
+		/* nothing read */
+		return -1;
+	}
+	if (!par && p != 0) {
+		return -1;
+	}
+	return (ssize_t)i;
+
+tokenread:
+	if(*del == '"')
+		/* do not skip over quotes after the string, they are part
+		 * of the next string.  But skip over whitespace (if needed)*/
+		sldns_bskipcs(b, del+1);
+	else 	sldns_bskipcs(b, del);
+	*t = '\0';
+
+	if (!par && p != 0) {
+		return -1;
+	}
+	return (ssize_t)i;
+}
+
+
+void
+sldns_bskipcs(sldns_buffer *buffer, const char *s)
+{
+        int found;
+        char c;
+        const char *d;
+
+        while(sldns_buffer_available_at(buffer, buffer->_position, sizeof(char))) {
+                c = (char) sldns_buffer_read_u8_at(buffer, buffer->_position);
+                found = 0;
+                for (d = s; *d; d++) {
+                        if (*d == c) {
+                                found = 1;
+                        }
+                }
+                if (found && buffer->_limit > buffer->_position) {
+                        buffer->_position += sizeof(char);
+                } else {
+                        return;
+                }
+        }
+}
+
+void
+sldns_fskipcs(FILE *fp, const char *s)
+{
+	sldns_fskipcs_l(fp, s, NULL);
+}
+
+void
+sldns_fskipcs_l(FILE *fp, const char *s, int *line_nr)
+{
+        int found;
+        int c;
+        const char *d;
+
+	while ((c = fgetc(fp)) != EOF) {
+		if (line_nr && c == '\n') {
+			*line_nr = *line_nr + 1;
+		}
+                found = 0;
+                for (d = s; *d; d++) {
+                        if (*d == c) {
+                                found = 1;
+                        }
+                }
+		if (!found) {
+			/* with getc, we've read too far */
+			ungetc(c, fp);
+			return;
+		}
+	}
+}
+
+ssize_t
+sldns_bget_keyword_data(sldns_buffer *b, const char *keyword, const char *k_del, char
+*data, const char *d_del, size_t data_limit)
+{
+       /* we assume: keyword|sep|data */
+       char *fkeyword;
+       ssize_t i;
+
+       if(strlen(keyword) >= LDNS_MAX_KEYWORDLEN)
+               return -1;
+       fkeyword = (char*)malloc(LDNS_MAX_KEYWORDLEN);
+       if(!fkeyword)
+               return -1; /* out of memory */
+
+       i = sldns_bget_token(b, fkeyword, k_del, data_limit);
+       if(i==0 || i==-1) {
+               free(fkeyword);
+               return -1; /* nothing read */
+       }
+
+       /* case??? */
+       if (strncmp(fkeyword, keyword, strlen(keyword)) == 0) {
+               free(fkeyword);
+               /* whee, the match! */
+               /* retrieve it's data */
+               i = sldns_bget_token(b, data, d_del, 0);
+               return i;
+       } else {
+               free(fkeyword);
+               return -1;
+       }
+}
+
diff --git a/external/unbound/sldns/parse.h b/external/unbound/sldns/parse.h
new file mode 100644
index 000000000..7b7456dd2
--- /dev/null
+++ b/external/unbound/sldns/parse.h
@@ -0,0 +1,184 @@
+/*
+ * parse.h 
+ *
+ * a Net::DNS like library for C
+ * LibDNS Team @ NLnet Labs
+ * (c) NLnet Labs, 2005-2006
+ * See the file LICENSE for the license
+ */
+
+#ifndef LDNS_PARSE_H
+#define LDNS_PARSE_H
+
+struct sldns_buffer;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LDNS_PARSE_SKIP_SPACE		"\f\n\r\v"
+#define LDNS_PARSE_NORMAL		" \f\n\r\t\v"
+#define LDNS_PARSE_NO_NL		" \t"
+#define LDNS_MAX_LINELEN		10230
+#define LDNS_MAX_KEYWORDLEN		32
+
+
+/**
+ * \file
+ *
+ * Contains some low-level parsing functions, mostly used in the _frm_str
+ * family of functions.
+ */
+ 
+/**
+ * different type of directives in zone files
+ * We now deal with $TTL, $ORIGIN and $INCLUDE.
+ * The latter is not implemented in ldns (yet)
+ */
+enum sldns_enum_directive
+{
+	LDNS_DIR_TTL,
+	LDNS_DIR_ORIGIN,
+	LDNS_DIR_INCLUDE
+};
+typedef enum sldns_enum_directive sldns_directive;
+
+/** 
+ * returns a token/char from the stream F.
+ * This function deals with ( and ) in the stream,
+ * and ignores them when encountered
+ * \param[in] *f the file to read from
+ * \param[out] *token the read token is put here
+ * \param[in] *delim chars at which the parsing should stop
+ * \param[in] *limit how much to read. If 0 the builtin maximum is used
+ * \return 0 on error of EOF of the stream F.  Otherwise return the length of what is read
+ */
+ssize_t sldns_fget_token(FILE *f, char *token, const char *delim, size_t limit);
+
+/** 
+ * returns a token/char from the stream F.
+ * This function deals with ( and ) in the stream,
+ * and ignores when it finds them.
+ * \param[in] *f the file to read from
+ * \param[out] *token the token is put here
+ * \param[in] *delim chars at which the parsing should stop
+ * \param[in] *limit how much to read. If 0 use builtin maximum
+ * \param[in] line_nr pointer to an integer containing the current line number (for debugging purposes)
+ * \return 0 on error of EOF of F otherwise return the length of what is read
+ */
+ssize_t sldns_fget_token_l(FILE *f, char *token, const char *delim, size_t limit, int *line_nr);
+
+/**
+ * returns a token/char from the buffer b.
+ * This function deals with ( and ) in the buffer,
+ * and ignores when it finds them.
+ * \param[in] *b the buffer to read from
+ * \param[out] *token the token is put here
+ * \param[in] *delim chars at which the parsing should stop
+ * \param[in] *limit how much to read. If 0 the builtin maximum is used
+ * \param[in] *par if you pass nonNULL, set to 0 on first call, the parenthesis
+ * state is stored in it, for use on next call.  User must check it is back
+ * to zero after last bget in string (for parse error).  If you pass NULL,
+ * the entire parenthesized string is read in.
+ * \param[in] skipw string with whitespace to skip before the start of the
+ * token, like " ", or " \t", or NULL for none.  
+ * \returns 0 on error of EOF of b. Otherwise return the length of what is read
+ */
+ssize_t sldns_bget_token_par(struct sldns_buffer *b, char *token, const char *delim, size_t limit, int* par, const char* skipw);
+
+/**
+ * returns a token/char from the buffer b.
+ * This function deals with ( and ) in the buffer,
+ * and ignores when it finds them.
+ * \param[in] *b the buffer to read from
+ * \param[out] *token the token is put here
+ * \param[in] *delim chars at which the parsing should stop
+ * \param[in] *limit how much to read. If 0 the builtin maximum is used
+ * \returns 0 on error of EOF of b. Otherwise return the length of what is read
+ */
+ssize_t sldns_bget_token(struct sldns_buffer *b, char *token, const char *delim, size_t limit);
+
+/*
+ * searches for keyword and delim in a file. Gives everything back
+ * after the keyword + k_del until we hit d_del
+ * \param[in] f file pointer to read from
+ * \param[in] keyword keyword to look for
+ * \param[in] k_del keyword delimeter 
+ * \param[out] data the data found 
+ * \param[in] d_del the data delimeter
+ * \param[in] data_limit maximum size the the data buffer
+ * \return the number of character read
+ */
+ssize_t sldns_fget_keyword_data(FILE *f, const char *keyword, const char *k_del, char *data, const char *d_del, size_t data_limit);
+
+/*
+ * searches for keyword and delim. Gives everything back
+ * after the keyword + k_del until we hit d_del
+ * \param[in] f file pointer to read from
+ * \param[in] keyword keyword to look for
+ * \param[in] k_del keyword delimeter 
+ * \param[out] data the data found 
+ * \param[in] d_del the data delimeter
+ * \param[in] data_limit maximum size the the data buffer
+ * \param[in] line_nr pointer to an integer containing the current line number (for
+debugging purposes)
+ * \return the number of character read
+ */
+ssize_t sldns_fget_keyword_data_l(FILE *f, const char *keyword, const char *k_del, char *data, const char *d_del, size_t data_limit, int *line_nr);
+
+/*
+ * searches for keyword and delim in a buffer. Gives everything back
+ * after the keyword + k_del until we hit d_del
+ * \param[in] b buffer pointer to read from
+ * \param[in] keyword keyword to look for
+ * \param[in] k_del keyword delimeter 
+ * \param[out] data the data found 
+ * \param[in] d_del the data delimeter
+ * \param[in] data_limit maximum size the the data buffer
+ * \return the number of character read
+ */
+ssize_t sldns_bget_keyword_data(struct sldns_buffer *b, const char *keyword, const char *k_del, char *data, const char *d_del, size_t data_limit);
+
+/**
+ * returns the next character from a buffer. Advances the position pointer with 1.
+ * When end of buffer is reached returns EOF. This is the buffer's equivalent
+ * for getc().
+ * \param[in] *buffer buffer to read from
+ * \return EOF on failure otherwise return the character
+ */
+int sldns_bgetc(struct sldns_buffer *buffer);
+
+/**
+ * skips all of the characters in the given string in the buffer, moving
+ * the position to the first character that is not in *s.
+ * \param[in] *buffer buffer to use
+ * \param[in] *s characters to skip
+ * \return void
+ */
+void sldns_bskipcs(struct sldns_buffer *buffer, const char *s);
+
+/**
+ * skips all of the characters in the given string in the fp, moving
+ * the position to the first character that is not in *s.
+ * \param[in] *fp file to use
+ * \param[in] *s characters to skip
+ * \return void
+ */
+void sldns_fskipcs(FILE *fp, const char *s);
+
+
+/**
+ * skips all of the characters in the given string in the fp, moving
+ * the position to the first character that is not in *s.
+ * \param[in] *fp file to use
+ * \param[in] *s characters to skip
+ * \param[in] line_nr pointer to an integer containing the current line number (for debugging purposes)
+ * \return void
+ */
+void sldns_fskipcs_l(FILE *fp, const char *s, int *line_nr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_PARSE_H */
diff --git a/external/unbound/sldns/parseutil.c b/external/unbound/sldns/parseutil.c
new file mode 100644
index 000000000..2a2ebbb08
--- /dev/null
+++ b/external/unbound/sldns/parseutil.c
@@ -0,0 +1,726 @@
+/*
+ * parseutil.c - parse utilities for string and wire conversion
+ *
+ * (c) NLnet Labs, 2004-2006
+ *
+ * See the file LICENSE for the license
+ */
+/**
+ * \file
+ *
+ * Utility functions for parsing, base32(DNS variant) and base64 encoding
+ * and decoding, Hex, Time units, Escape codes.
+ */
+
+#include "config.h"
+#include "sldns/parseutil.h"
+#include <sys/time.h>
+#include <time.h>
+#include <ctype.h>
+
+sldns_lookup_table *
+sldns_lookup_by_name(sldns_lookup_table *table, const char *name)
+{
+        while (table->name != NULL) {
+                if (strcasecmp(name, table->name) == 0)
+                        return table;
+                table++;
+        }
+        return NULL;
+}
+
+sldns_lookup_table *
+sldns_lookup_by_id(sldns_lookup_table *table, int id)
+{
+        while (table->name != NULL) {
+                if (table->id == id)
+                        return table;
+                table++;
+        }
+        return NULL;
+}
+
+/* Number of days per month (except for February in leap years). */
+static const int mdays[] = {
+	31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+};
+
+#define LDNS_MOD(x,y) (((x) % (y) < 0) ? ((x) % (y) + (y)) : ((x) % (y)))
+#define LDNS_DIV(x,y) (((x) % (y) < 0) ? ((x) / (y) -  1 ) : ((x) / (y)))
+
+static int
+is_leap_year(int year)
+{
+	return LDNS_MOD(year,   4) == 0 && (LDNS_MOD(year, 100) != 0 
+	    || LDNS_MOD(year, 400) == 0);
+}
+
+static int
+leap_days(int y1, int y2)
+{
+	--y1;
+	--y2;
+	return (LDNS_DIV(y2,   4) - LDNS_DIV(y1,   4)) - 
+	       (LDNS_DIV(y2, 100) - LDNS_DIV(y1, 100)) +
+	       (LDNS_DIV(y2, 400) - LDNS_DIV(y1, 400));
+}
+
+/*
+ * Code adapted from Python 2.4.1 sources (Lib/calendar.py).
+ */
+time_t
+sldns_mktime_from_utc(const struct tm *tm)
+{
+	int year = 1900 + tm->tm_year;
+	time_t days = 365 * ((time_t) year - 1970) + leap_days(1970, year);
+	time_t hours;
+	time_t minutes;
+	time_t seconds;
+	int i;
+
+	for (i = 0; i < tm->tm_mon; ++i) {
+		days += mdays[i];
+	}
+	if (tm->tm_mon > 1 && is_leap_year(year)) {
+		++days;
+	}
+	days += tm->tm_mday - 1;
+
+	hours = days * 24 + tm->tm_hour;
+	minutes = hours * 60 + tm->tm_min;
+	seconds = minutes * 60 + tm->tm_sec;
+
+	return seconds;
+}
+
+#if SIZEOF_TIME_T <= 4
+
+static void
+sldns_year_and_yday_from_days_since_epoch(int64_t days, struct tm *result)
+{
+	int year = 1970;
+	int new_year;
+
+	while (days < 0 || days >= (int64_t) (is_leap_year(year) ? 366 : 365)) {
+		new_year = year + (int) LDNS_DIV(days, 365);
+		days -= (new_year - year) * 365;
+		days -= leap_days(year, new_year);
+		year  = new_year;
+	}
+	result->tm_year = year;
+	result->tm_yday = (int) days;
+}
+
+/* Number of days per month in a leap year. */
+static const int leap_year_mdays[] = {
+	31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+};
+
+static void
+sldns_mon_and_mday_from_year_and_yday(struct tm *result)
+{
+	int idays = result->tm_yday;
+	const int *mon_lengths = is_leap_year(result->tm_year) ? 
+					leap_year_mdays : mdays;
+
+	result->tm_mon = 0;
+	while  (idays >= mon_lengths[result->tm_mon]) {
+		idays -= mon_lengths[result->tm_mon++];
+	}
+	result->tm_mday = idays + 1;
+}
+
+static void
+sldns_wday_from_year_and_yday(struct tm *result)
+{
+	result->tm_wday = 4 /* 1-1-1970 was a thursday */
+			+ LDNS_MOD((result->tm_year - 1970), 7) * LDNS_MOD(365, 7)
+			+ leap_days(1970, result->tm_year)
+			+ result->tm_yday;
+	result->tm_wday = LDNS_MOD(result->tm_wday, 7);
+	if (result->tm_wday < 0) {
+		result->tm_wday += 7;
+	}
+}
+
+static struct tm *
+sldns_gmtime64_r(int64_t clock, struct tm *result)
+{
+	result->tm_isdst = 0;
+	result->tm_sec   = (int) LDNS_MOD(clock, 60);
+	clock            =       LDNS_DIV(clock, 60);
+	result->tm_min   = (int) LDNS_MOD(clock, 60);
+	clock            =       LDNS_DIV(clock, 60);
+	result->tm_hour  = (int) LDNS_MOD(clock, 24);
+	clock            =       LDNS_DIV(clock, 24);
+
+	sldns_year_and_yday_from_days_since_epoch(clock, result);
+	sldns_mon_and_mday_from_year_and_yday(result);
+	sldns_wday_from_year_and_yday(result);
+	result->tm_year -= 1900;
+
+	return result;
+}
+
+#endif /* SIZEOF_TIME_T <= 4 */
+
+static int64_t
+sldns_serial_arithmitics_time(int32_t time, time_t now)
+{
+	int32_t offset = time - (int32_t) now;
+	return (int64_t) now + offset;
+}
+
+struct tm *
+sldns_serial_arithmitics_gmtime_r(int32_t time, time_t now, struct tm *result)
+{
+#if SIZEOF_TIME_T <= 4
+	int64_t secs_since_epoch = sldns_serial_arithmitics_time(time, now);
+	return  sldns_gmtime64_r(secs_since_epoch, result);
+#else
+	time_t  secs_since_epoch = sldns_serial_arithmitics_time(time, now);
+	return  gmtime_r(&secs_since_epoch, result);
+#endif
+}
+
+int
+sldns_hexdigit_to_int(char ch)
+{
+	switch (ch) {
+	case '0': return 0;
+	case '1': return 1;
+	case '2': return 2;
+	case '3': return 3;
+	case '4': return 4;
+	case '5': return 5;
+	case '6': return 6;
+	case '7': return 7;
+	case '8': return 8;
+	case '9': return 9;
+	case 'a': case 'A': return 10;
+	case 'b': case 'B': return 11;
+	case 'c': case 'C': return 12;
+	case 'd': case 'D': return 13;
+	case 'e': case 'E': return 14;
+	case 'f': case 'F': return 15;
+	default:
+		return -1;
+	}
+}
+
+uint32_t
+sldns_str2period(const char *nptr, const char **endptr)
+{
+	int sign = 0;
+	uint32_t i = 0;
+	uint32_t seconds = 0;
+
+	for(*endptr = nptr; **endptr; (*endptr)++) {
+		switch (**endptr) {
+			case ' ':
+			case '\t':
+				break;
+			case '-':
+				if(sign == 0) {
+					sign = -1;
+				} else {
+					return seconds;
+				}
+				break;
+			case '+':
+				if(sign == 0) {
+					sign = 1;
+				} else {
+					return seconds;
+				}
+				break;
+			case 's':
+			case 'S':
+				seconds += i;
+				i = 0;
+				break;
+			case 'm':
+			case 'M':
+				seconds += i * 60;
+				i = 0;
+				break;
+			case 'h':
+			case 'H':
+				seconds += i * 60 * 60;
+				i = 0;
+				break;
+			case 'd':
+			case 'D':
+				seconds += i * 60 * 60 * 24;
+				i = 0;
+				break;
+			case 'w':
+			case 'W':
+				seconds += i * 60 * 60 * 24 * 7;
+				i = 0;
+				break;
+			case '0':
+			case '1':
+			case '2':
+			case '3':
+			case '4':
+			case '5':
+			case '6':
+			case '7':
+			case '8':
+			case '9':
+				i *= 10;
+				i += (**endptr - '0');
+				break;
+			default:
+				seconds += i;
+				/* disregard signedness */
+				return seconds;
+		}
+	}
+	seconds += i;
+	/* disregard signedness */
+	return seconds;
+}
+
+int
+sldns_parse_escape(uint8_t *ch_p, const char** str_p)
+{
+	uint16_t val;
+
+	if ((*str_p)[0] && isdigit((unsigned char)(*str_p)[0]) &&
+	    (*str_p)[1] && isdigit((unsigned char)(*str_p)[1]) &&
+	    (*str_p)[2] && isdigit((unsigned char)(*str_p)[2])) {
+
+		val = (uint16_t)(((*str_p)[0] - '0') * 100 +
+				 ((*str_p)[1] - '0') *  10 +
+				 ((*str_p)[2] - '0'));
+
+		if (val > 255) {
+			goto error;
+		}
+		*ch_p = (uint8_t)val;
+		*str_p += 3;
+		return 1;
+
+	} else if ((*str_p)[0] && !isdigit((unsigned char)(*str_p)[0])) {
+
+		*ch_p = (uint8_t)*(*str_p)++;
+		return 1;
+	}
+error:
+	*str_p = NULL;
+	return 0; /* LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE */
+}
+
+/** parse one character, with escape codes */
+int
+sldns_parse_char(uint8_t *ch_p, const char** str_p)
+{
+	switch (**str_p) {
+
+	case '\0':	return 0;
+
+	case '\\':	*str_p += 1;
+			return sldns_parse_escape(ch_p, str_p);
+
+	default:	*ch_p = (uint8_t)*(*str_p)++;
+			return 1;
+	}
+}
+
+size_t sldns_b32_ntop_calculate_size(size_t src_data_length)
+{
+	return src_data_length == 0 ? 0 : ((src_data_length - 1) / 5 + 1) * 8;
+}
+
+size_t sldns_b32_ntop_calculate_size_no_padding(size_t src_data_length)
+{
+	return ((src_data_length + 3) * 8 / 5) - 4;
+}
+
+static int
+sldns_b32_ntop_base(const uint8_t* src, size_t src_sz, char* dst, size_t dst_sz,
+	int extended_hex, int add_padding)
+{
+	size_t ret_sz;
+	const char* b32 = extended_hex ?  "0123456789abcdefghijklmnopqrstuv"
+					: "abcdefghijklmnopqrstuvwxyz234567";
+
+	size_t c = 0; /* c is used to carry partial base32 character over 
+		       * byte boundaries for sizes with a remainder.
+		       * (i.e. src_sz % 5 != 0)
+		       */
+
+	ret_sz = add_padding ? sldns_b32_ntop_calculate_size(src_sz)
+			     : sldns_b32_ntop_calculate_size_no_padding(src_sz);
+	
+	/* Do we have enough space? */
+	if (dst_sz < ret_sz + 1)
+		return -1;
+
+	/* We know the size; terminate the string */
+	dst[ret_sz] = '\0';
+
+	/* First process all chunks of five */
+	while (src_sz >= 5) {
+		/* 00000... ........ ........ ........ ........ */
+		dst[0] = b32[(src[0]       ) >> 3];
+
+		/* .....111 11...... ........ ........ ........ */
+		dst[1] = b32[(src[0] & 0x07) << 2 | src[1] >> 6];
+
+		/* ........ ..22222. ........ ........ ........ */
+		dst[2] = b32[(src[1] & 0x3e) >> 1];
+
+		/* ........ .......3 3333.... ........ ........ */
+		dst[3] = b32[(src[1] & 0x01) << 4 | src[2] >> 4];
+
+		/* ........ ........ ....4444 4....... ........ */
+		dst[4] = b32[(src[2] & 0x0f) << 1 | src[3] >> 7];
+
+		/* ........ ........ ........ .55555.. ........ */
+		dst[5] = b32[(src[3] & 0x7c) >> 2];
+
+		/* ........ ........ ........ ......66 666..... */
+		dst[6] = b32[(src[3] & 0x03) << 3 | src[4] >> 5];
+
+		/* ........ ........ ........ ........ ...77777 */
+		dst[7] = b32[(src[4] & 0x1f)     ];
+
+		src_sz -= 5;
+		src    += 5;
+		dst    += 8;
+	}
+	/* Process what remains */
+	switch (src_sz) {
+	case 4: /* ........ ........ ........ ......66 666..... */
+		dst[6] = b32[(src[3] & 0x03) << 3];
+
+		/* ........ ........ ........ .55555.. ........ */
+		dst[5] = b32[(src[3] & 0x7c) >> 2];
+
+		/* ........ ........ ....4444 4....... ........ */
+			 c =  src[3]         >> 7 ;
+	case 3: dst[4] = b32[(src[2] & 0x0f) << 1 | c];
+
+		/* ........ .......3 3333.... ........ ........ */
+			 c =  src[2]         >> 4 ;
+	case 2:	dst[3] = b32[(src[1] & 0x01) << 4 | c];
+
+		/* ........ ..22222. ........ ........ ........ */
+		dst[2] = b32[(src[1] & 0x3e) >> 1];
+
+		/* .....111 11...... ........ ........ ........ */
+			 c =  src[1]         >> 6 ;
+	case 1:	dst[1] = b32[(src[0] & 0x07) << 2 | c];
+
+		/* 00000... ........ ........ ........ ........ */
+		dst[0] = b32[ src[0]         >> 3];
+	}
+	/* Add padding */
+	if (add_padding) {
+		switch (src_sz) {
+			case 1: dst[2] = '=';
+				dst[3] = '=';
+			case 2: dst[4] = '=';
+			case 3: dst[5] = '=';
+				dst[6] = '=';
+			case 4: dst[7] = '=';
+		}
+	}
+	return (int)ret_sz;
+}
+
+int 
+sldns_b32_ntop(const uint8_t* src, size_t src_sz, char* dst, size_t dst_sz)
+{
+	return sldns_b32_ntop_base(src, src_sz, dst, dst_sz, 0, 1);
+}
+
+int 
+sldns_b32_ntop_extended_hex(const uint8_t* src, size_t src_sz,
+		char* dst, size_t dst_sz)
+{
+	return sldns_b32_ntop_base(src, src_sz, dst, dst_sz, 1, 1);
+}
+
+size_t sldns_b32_pton_calculate_size(size_t src_text_length)
+{
+	return src_text_length * 5 / 8;
+}
+
+static int
+sldns_b32_pton_base(const char* src, size_t src_sz, uint8_t* dst, size_t dst_sz,
+	int extended_hex, int check_padding)
+{
+	size_t i = 0;
+	char ch = '\0';
+	uint8_t buf[8];
+	uint8_t* start = dst;
+
+	while (src_sz) {
+		/* Collect 8 characters in buf (if possible) */
+		for (i = 0; i < 8; i++) {
+
+			do {
+				ch = *src++;
+				--src_sz;
+
+			} while (isspace((unsigned char)ch) && src_sz > 0);
+
+			if (ch == '=' || ch == '\0')
+				break;
+
+			else if (extended_hex)
+
+				if (ch >= '0' && ch <= '9')
+					buf[i] = (uint8_t)ch - '0';
+				else if (ch >= 'a' && ch <= 'v')
+					buf[i] = (uint8_t)ch - 'a' + 10;
+				else if (ch >= 'A' && ch <= 'V')
+					buf[i] = (uint8_t)ch - 'A' + 10;
+				else
+					return -1;
+
+			else if (ch >= 'a' && ch <= 'z')
+				buf[i] = (uint8_t)ch - 'a';
+			else if (ch >= 'A' && ch <= 'Z')
+				buf[i] = (uint8_t)ch - 'A';
+			else if (ch >= '2' && ch <= '7')
+				buf[i] = (uint8_t)ch - '2' + 26;
+			else
+				return -1;
+		}
+		/* Less that 8 characters. We're done. */
+		if (i < 8)
+			break;
+
+		/* Enough space available at the destination? */
+		if (dst_sz < 5)
+			return -1;
+
+		/* 00000... ........ ........ ........ ........ */
+		/* .....111 11...... ........ ........ ........ */
+		dst[0] = buf[0] << 3 | buf[1] >> 2;
+
+		/* .....111 11...... ........ ........ ........ */
+		/* ........ ..22222. ........ ........ ........ */
+		/* ........ .......3 3333.... ........ ........ */
+		dst[1] = buf[1] << 6 | buf[2] << 1 | buf[3] >> 4;
+
+		/* ........ .......3 3333.... ........ ........ */
+		/* ........ ........ ....4444 4....... ........ */
+		dst[2] = buf[3] << 4 | buf[4] >> 1;
+
+		/* ........ ........ ....4444 4....... ........ */
+		/* ........ ........ ........ .55555.. ........ */
+		/* ........ ........ ........ ......66 666..... */
+		dst[3] = buf[4] << 7 | buf[5] << 2 | buf[6] >> 3;
+
+		/* ........ ........ ........ ......66 666..... */
+		/* ........ ........ ........ ........ ...77777 */
+		dst[4] = buf[6] << 5 | buf[7];
+
+		dst += 5;
+		dst_sz -= 5;
+	}
+	/* Not ending on a eight byte boundary? */
+	if (i > 0 && i < 8) {
+
+		/* Enough space available at the destination? */
+		if (dst_sz < (i + 1) / 2)
+			return -1;
+
+		switch (i) {
+		case 7: /* ........ ........ ........ ......66 666..... */
+			/* ........ ........ ........ .55555.. ........ */
+			/* ........ ........ ....4444 4....... ........ */
+			dst[3] = buf[4] << 7 | buf[5] << 2 | buf[6] >> 3;
+
+		case 5: /* ........ ........ ....4444 4....... ........ */
+			/* ........ .......3 3333.... ........ ........ */
+			dst[2] = buf[3] << 4 | buf[4] >> 1;
+
+		case 4: /* ........ .......3 3333.... ........ ........ */
+			/* ........ ..22222. ........ ........ ........ */
+			/* .....111 11...... ........ ........ ........ */
+			dst[1] = buf[1] << 6 | buf[2] << 1 | buf[3] >> 4;
+
+		case 2: /* .....111 11...... ........ ........ ........ */
+			/* 00000... ........ ........ ........ ........ */
+			dst[0] = buf[0] << 3 | buf[1] >> 2;
+
+			break;
+
+		default:
+			return -1;
+		}
+		dst += (i + 1) / 2;
+
+		if (check_padding) {
+			/* Check remaining padding characters */
+			if (ch != '=')
+				return -1;
+
+			/* One down, 8 - i - 1 more to come... */
+			for (i = 8 - i - 1; i > 0; i--) {
+
+				do {
+					if (src_sz == 0)
+						return -1;
+					ch = *src++;
+					src_sz--;
+
+				} while (isspace((unsigned char)ch));
+
+				if (ch != '=')
+					return -1;
+			}
+		}
+	}
+	return dst - start;
+}
+
+int
+sldns_b32_pton(const char* src, size_t src_sz, uint8_t* dst, size_t dst_sz)
+{
+	return sldns_b32_pton_base(src, src_sz, dst, dst_sz, 0, 1);
+}
+
+int
+sldns_b32_pton_extended_hex(const char* src, size_t src_sz, 
+		uint8_t* dst, size_t dst_sz)
+{
+	return sldns_b32_pton_base(src, src_sz, dst, dst_sz, 1, 1);
+}
+
+size_t sldns_b64_ntop_calculate_size(size_t srcsize)
+{
+	return ((((srcsize + 2) / 3) * 4) + 1);
+}
+
+/* RFC 1521, section 5.2.
+ *
+ * The encoding process represents 24-bit groups of input bits as output
+ * strings of 4 encoded characters. Proceeding from left to right, a
+ * 24-bit input group is formed by concatenating 3 8-bit input groups.
+ * These 24 bits are then treated as 4 concatenated 6-bit groups, each
+ * of which is translated into a single digit in the base64 alphabet.
+ *
+ * This routine does not insert spaces or linebreaks after 76 characters.
+ */
+int sldns_b64_ntop(uint8_t const *src, size_t srclength,
+	char *target, size_t targsize)
+{
+	const char* b64 =
+	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+	const char pad64 = '=';
+	size_t i = 0, o = 0;
+	if(targsize < sldns_b64_ntop_calculate_size(srclength))
+		return -1;
+	/* whole chunks: xxxxxxyy yyyyzzzz zzwwwwww */
+	while(i+3 <= srclength) {
+		if(o+4 > targsize) return -1;
+		target[o] = b64[src[i] >> 2];
+		target[o+1] = b64[ ((src[i]&0x03)<<4) | (src[i+1]>>4) ];
+		target[o+2] = b64[ ((src[i+1]&0x0f)<<2) | (src[i+2]>>6) ];
+		target[o+3] = b64[ (src[i+2]&0x3f) ];
+		i += 3;
+		o += 4;
+	}
+	/* remainder */
+	switch(srclength - i) {
+	case 2:
+		/* two at end, converted into A B C = */
+		target[o] = b64[src[i] >> 2];
+		target[o+1] = b64[ ((src[i]&0x03)<<4) | (src[i+1]>>4) ];
+		target[o+2] = b64[ ((src[i+1]&0x0f)<<2) ];
+		target[o+3] = pad64;
+		i += 2;
+		o += 4;
+		break;
+	case 1:
+		/* one at end, converted into A B = = */
+		target[o] = b64[src[i] >> 2];
+		target[o+1] = b64[ ((src[i]&0x03)<<4) ];
+		target[o+2] = pad64;
+		target[o+3] = pad64;
+		i += 1;
+		o += 4;
+		break;
+	case 0:
+	default:
+		/* nothing */
+		break;
+	}
+	/* assert: i == srclength */
+	if(o+1 > targsize) return -1;
+	target[o] = 0;
+	return (int)o;
+}
+
+size_t sldns_b64_pton_calculate_size(size_t srcsize)
+{
+	return (((((srcsize + 3) / 4) * 3)) + 1);
+}
+
+int sldns_b64_pton(char const *src, uint8_t *target, size_t targsize)
+{
+	const uint8_t pad64 = 64; /* is 64th in the b64 array */
+	const char* s = src;
+	uint8_t in[4];
+	size_t o = 0, incount = 0;
+
+	while(*s) {
+		/* skip any character that is not base64 */
+		/* conceptually we do:
+		const char* b64 =      pad'=' is appended to array
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+		const char* d = strchr(b64, *s++);
+		and use d-b64;
+		*/
+		char d = *s++;
+		if(d <= 'Z' && d >= 'A')
+			d -= 'A';
+		else if(d <= 'z' && d >= 'a')
+			d = d - 'a' + 26;
+		else if(d <= '9' && d >= '0')
+			d = d - '0' + 52;
+		else if(d == '+')
+			d = 62;
+		else if(d == '/')
+			d = 63;
+		else if(d == '=')
+			d = 64;
+		else	continue;
+		in[incount++] = (uint8_t)d;
+		if(incount != 4)
+			continue;
+		/* process whole block of 4 characters into 3 output bytes */
+		if(in[3] == pad64 && in[2] == pad64) { /* A B = = */
+			if(o+1 > targsize)
+				return -1;
+			target[o] = (in[0]<<2) | ((in[1]&0x30)>>4);
+			o += 1;
+			break; /* we are done */
+		} else if(in[3] == pad64) { /* A B C = */
+			if(o+2 > targsize)
+				return -1;
+			target[o] = (in[0]<<2) | ((in[1]&0x30)>>4);
+			target[o+1]= ((in[1]&0x0f)<<4) | ((in[2]&0x3c)>>2);
+			o += 2;
+			break; /* we are done */
+		} else {
+			if(o+3 > targsize)
+				return -1;
+			/* write xxxxxxyy yyyyzzzz zzwwwwww */
+			target[o] = (in[0]<<2) | ((in[1]&0x30)>>4);
+			target[o+1]= ((in[1]&0x0f)<<4) | ((in[2]&0x3c)>>2);
+			target[o+2]= ((in[2]&0x03)<<6) | in[3];
+			o += 3;
+		}
+		incount = 0;
+	}
+	return (int)o;
+}
diff --git a/external/unbound/sldns/parseutil.h b/external/unbound/sldns/parseutil.h
new file mode 100644
index 000000000..dfa1c2a2b
--- /dev/null
+++ b/external/unbound/sldns/parseutil.h
@@ -0,0 +1,148 @@
+/*
+ * parseutil.h - parse utilities for string and wire conversion
+ *
+ * (c) NLnet Labs, 2004
+ *
+ * See the file LICENSE for the license
+ */
+/**
+ * \file
+ *
+ * Utility functions for parsing, base32(DNS variant) and base64 encoding
+ * and decoding, Hex, Time units, Escape codes.
+ */
+
+#ifndef LDNS_PARSEUTIL_H
+#define LDNS_PARSEUTIL_H
+struct tm;
+
+/** 
+ *  A general purpose lookup table
+ *  
+ *  Lookup tables are arrays of (id, name) pairs,
+ *  So you can for instance lookup the RCODE 3, which is "NXDOMAIN",
+ *  and vice versa. The lookup tables themselves are defined wherever needed,
+ *  for instance in host2str.c
+ */
+struct sldns_struct_lookup_table {
+        int id;
+        const char *name;
+};
+typedef struct sldns_struct_lookup_table sldns_lookup_table;
+
+/**
+ * Looks up the table entry by name, returns NULL if not found.
+ * \param[in] table the lookup table to search in
+ * \param[in] name what to search for
+ * \return the item found
+ */
+sldns_lookup_table *sldns_lookup_by_name(sldns_lookup_table table[],
+                                       const char *name);
+/**
+ * Looks up the table entry by id, returns NULL if not found.
+ * \param[in] table the lookup table to search in
+ * \param[in] id what to search for
+ * \return the item found
+ */
+sldns_lookup_table *sldns_lookup_by_id(sldns_lookup_table table[], int id);
+
+/**
+ * Convert TM to seconds since epoch (midnight, January 1st, 1970).
+ * Like timegm(3), which is not always available.
+ * \param[in] tm a struct tm* with the date
+ * \return the seconds since epoch
+ */
+time_t sldns_mktime_from_utc(const struct tm *tm);
+
+/**
+ * The function interprets time as the number of seconds since epoch
+ * with respect to now using serial arithmitics (rfc1982).
+ * That number of seconds is then converted to broken-out time information.
+ * This is especially usefull when converting the inception and expiration
+ * fields of RRSIG records.
+ *
+ * \param[in] time number of seconds since epoch (midnight, January 1st, 1970)
+ *            to be intepreted as a serial arithmitics number relative to now.
+ * \param[in] now number of seconds since epoch (midnight, January 1st, 1970)
+ *            to which the time value is compared to determine the final value.
+ * \param[out] result the struct with the broken-out time information
+ * \return result on success or NULL on error
+ */
+struct tm * sldns_serial_arithmitics_gmtime_r(int32_t time, time_t now, struct tm *result);
+
+/**
+ * converts a ttl value (like 5d2h) to a long.
+ * \param[in] nptr the start of the string
+ * \param[out] endptr points to the last char in case of error
+ * \return the convert duration value
+ */
+uint32_t sldns_str2period(const char *nptr, const char **endptr);
+
+/**
+ * Returns the int value of the given (hex) digit
+ * \param[in] ch the hex char to convert
+ * \return the converted decimal value
+ */
+int sldns_hexdigit_to_int(char ch);
+
+/**
+ * calculates the size needed to store the result of b64_ntop
+ */
+size_t sldns_b64_ntop_calculate_size(size_t srcsize);
+
+int sldns_b64_ntop(uint8_t const *src, size_t srclength,
+	char *target, size_t targsize);
+
+/**
+ * calculates the size needed to store the result of sldns_b64_pton
+ */
+size_t sldns_b64_pton_calculate_size(size_t srcsize);
+
+int sldns_b64_pton(char const *src, uint8_t *target, size_t targsize);
+
+/**
+ * calculates the size needed to store the result of b32_ntop
+ */
+size_t sldns_b32_ntop_calculate_size(size_t src_data_length);
+
+size_t sldns_b32_ntop_calculate_size_no_padding(size_t src_data_length);
+
+int sldns_b32_ntop(const uint8_t* src_data, size_t src_data_length,
+	char* target_text_buffer, size_t target_text_buffer_size);
+
+int sldns_b32_ntop_extended_hex(const uint8_t* src_data, size_t src_data_length,
+	char* target_text_buffer, size_t target_text_buffer_size);
+
+/**
+ * calculates the size needed to store the result of b32_pton
+ */
+size_t sldns_b32_pton_calculate_size(size_t src_text_length);
+
+int sldns_b32_pton(const char* src_text, size_t src_text_length,
+	uint8_t* target_data_buffer, size_t target_data_buffer_size);
+
+int sldns_b32_pton_extended_hex(const char* src_text, size_t src_text_length,
+	uint8_t* target_data_buffer, size_t target_data_buffer_size);
+
+/*
+ * Checks whether the escaped value at **s is an octal value or
+ * a 'normally' escaped character (and not eos)
+ *
+ * @param ch_p: the parsed character
+ * @param str_p: the string. moved along for characters read.
+ * The string pointer at *s is increased by either 0 (on error), 1 (on
+ * normal escapes), or 3 (on octals)
+ *
+ * @return 0 on error
+ */
+int sldns_parse_escape(uint8_t *ch_p, const char** str_p);
+
+/** 
+ * Parse one character, with escape codes,
+ * @param ch_p: the parsed character
+ * @param str_p: the string. moved along for characters read.
+ * @return 0 on error
+ */
+int sldns_parse_char(uint8_t *ch_p, const char** str_p);
+
+#endif /* LDNS_PARSEUTIL_H */
diff --git a/external/unbound/sldns/pkthdr.h b/external/unbound/sldns/pkthdr.h
new file mode 100644
index 000000000..de9952ea7
--- /dev/null
+++ b/external/unbound/sldns/pkthdr.h
@@ -0,0 +1,158 @@
+/*
+ * pkthdr.h - packet header from wire conversion routines
+ *
+ * a Net::DNS like library for C
+ *
+ * (c) NLnet Labs, 2005-2006
+ *
+ * See the file LICENSE for the license
+ */
+
+/**
+ * \file
+ *
+ * Contains functions that translate dns data from the wire format (as sent
+ * by servers and clients) to the internal structures for the packet header.
+ */
+ 
+#ifndef LDNS_PKTHDR_H
+#define LDNS_PKTHDR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The length of the header */
+#define	LDNS_HEADER_SIZE	12
+
+/* First octet of flags */
+#define	LDNS_RD_MASK		0x01U
+#define	LDNS_RD_SHIFT	0
+#define	LDNS_RD_WIRE(wirebuf)	(*(wirebuf+2) & LDNS_RD_MASK)
+#define	LDNS_RD_SET(wirebuf)	(*(wirebuf+2) |= LDNS_RD_MASK)
+#define	LDNS_RD_CLR(wirebuf)	(*(wirebuf+2) &= ~LDNS_RD_MASK)
+
+#define LDNS_TC_MASK		0x02U
+#define LDNS_TC_SHIFT	1
+#define	LDNS_TC_WIRE(wirebuf)	(*(wirebuf+2) & LDNS_TC_MASK)
+#define	LDNS_TC_SET(wirebuf)	(*(wirebuf+2) |= LDNS_TC_MASK)
+#define	LDNS_TC_CLR(wirebuf)	(*(wirebuf+2) &= ~LDNS_TC_MASK)
+
+#define	LDNS_AA_MASK		0x04U
+#define	LDNS_AA_SHIFT	2
+#define	LDNS_AA_WIRE(wirebuf)	(*(wirebuf+2) & LDNS_AA_MASK)
+#define	LDNS_AA_SET(wirebuf)	(*(wirebuf+2) |= LDNS_AA_MASK)
+#define	LDNS_AA_CLR(wirebuf)	(*(wirebuf+2) &= ~LDNS_AA_MASK)
+
+#define	LDNS_OPCODE_MASK	0x78U
+#define	LDNS_OPCODE_SHIFT	3
+#define	LDNS_OPCODE_WIRE(wirebuf)	((*(wirebuf+2) & LDNS_OPCODE_MASK) >> LDNS_OPCODE_SHIFT)
+#define	LDNS_OPCODE_SET(wirebuf, opcode) \
+	(*(wirebuf+2) = ((*(wirebuf+2)) & ~LDNS_OPCODE_MASK) | ((opcode) << LDNS_OPCODE_SHIFT))
+
+#define	LDNS_QR_MASK		0x80U
+#define	LDNS_QR_SHIFT	7
+#define	LDNS_QR_WIRE(wirebuf)	(*(wirebuf+2) & LDNS_QR_MASK)
+#define	LDNS_QR_SET(wirebuf)	(*(wirebuf+2) |= LDNS_QR_MASK)
+#define	LDNS_QR_CLR(wirebuf)	(*(wirebuf+2) &= ~LDNS_QR_MASK)
+
+/* Second octet of flags */
+#define	LDNS_RCODE_MASK	0x0fU
+#define	LDNS_RCODE_SHIFT	0
+#define	LDNS_RCODE_WIRE(wirebuf)	(*(wirebuf+3) & LDNS_RCODE_MASK)
+#define	LDNS_RCODE_SET(wirebuf, rcode) \
+	(*(wirebuf+3) = ((*(wirebuf+3)) & ~LDNS_RCODE_MASK) | (rcode))
+
+#define	LDNS_CD_MASK		0x10U
+#define	LDNS_CD_SHIFT	4
+#define	LDNS_CD_WIRE(wirebuf)	(*(wirebuf+3) & LDNS_CD_MASK)
+#define	LDNS_CD_SET(wirebuf)	(*(wirebuf+3) |= LDNS_CD_MASK)
+#define	LDNS_CD_CLR(wirebuf)	(*(wirebuf+3) &= ~LDNS_CD_MASK)
+
+#define	LDNS_AD_MASK		0x20U
+#define	LDNS_AD_SHIFT	5
+#define	LDNS_AD_WIRE(wirebuf)	(*(wirebuf+3) & LDNS_AD_MASK)
+#define	LDNS_AD_SET(wirebuf)	(*(wirebuf+3) |= LDNS_AD_MASK)
+#define	LDNS_AD_CLR(wirebuf)	(*(wirebuf+3) &= ~LDNS_AD_MASK)
+
+#define	LDNS_Z_MASK		0x40U
+#define	LDNS_Z_SHIFT		6
+#define	LDNS_Z_WIRE(wirebuf)	(*(wirebuf+3) & LDNS_Z_MASK)
+#define	LDNS_Z_SET(wirebuf)	(*(wirebuf+3) |= LDNS_Z_MASK)
+#define	LDNS_Z_CLR(wirebuf)	(*(wirebuf+3) &= ~LDNS_Z_MASK)
+
+#define	LDNS_RA_MASK		0x80U
+#define	LDNS_RA_SHIFT	7
+#define	LDNS_RA_WIRE(wirebuf)	(*(wirebuf+3) & LDNS_RA_MASK)
+#define	LDNS_RA_SET(wirebuf)	(*(wirebuf+3) |= LDNS_RA_MASK)
+#define	LDNS_RA_CLR(wirebuf)	(*(wirebuf+3) &= ~LDNS_RA_MASK)
+
+/* Query ID */
+#define	LDNS_ID_WIRE(wirebuf)		(sldns_read_uint16(wirebuf))
+#define	LDNS_ID_SET(wirebuf, id)	(sldns_write_uint16(wirebuf, id))
+
+/* Counter of the question section */
+#define LDNS_QDCOUNT_OFF		4
+/*
+#define	QDCOUNT(wirebuf)		(ntohs(*(uint16_t *)(wirebuf+QDCOUNT_OFF)))
+*/
+#define	LDNS_QDCOUNT(wirebuf)		(sldns_read_uint16(wirebuf+LDNS_QDCOUNT_OFF))
+
+/* Counter of the answer section */
+#define LDNS_ANCOUNT_OFF		6
+#define	LDNS_ANCOUNT(wirebuf)		(sldns_read_uint16(wirebuf+LDNS_ANCOUNT_OFF))
+
+/* Counter of the authority section */
+#define LDNS_NSCOUNT_OFF		8
+#define	LDNS_NSCOUNT(wirebuf)		(sldns_read_uint16(wirebuf+LDNS_NSCOUNT_OFF))
+
+/* Counter of the additional section */
+#define LDNS_ARCOUNT_OFF		10
+#define	LDNS_ARCOUNT(wirebuf)		(sldns_read_uint16(wirebuf+LDNS_ARCOUNT_OFF))
+
+/**
+ * The sections of a packet
+ */
+enum sldns_enum_pkt_section {
+        LDNS_SECTION_QUESTION = 0,
+        LDNS_SECTION_ANSWER = 1,
+        LDNS_SECTION_AUTHORITY = 2,
+        LDNS_SECTION_ADDITIONAL = 3,
+        /** bogus section, if not interested */
+        LDNS_SECTION_ANY = 4,
+        /** used to get all non-question rrs from a packet */
+        LDNS_SECTION_ANY_NOQUESTION = 5
+};
+typedef enum sldns_enum_pkt_section sldns_pkt_section;
+
+/* opcodes for pkt's */
+enum sldns_enum_pkt_opcode {
+        LDNS_PACKET_QUERY = 0,
+        LDNS_PACKET_IQUERY = 1,
+        LDNS_PACKET_STATUS = 2, /* there is no 3?? DNS is weird */
+        LDNS_PACKET_NOTIFY = 4,
+        LDNS_PACKET_UPDATE = 5
+};
+typedef enum sldns_enum_pkt_opcode sldns_pkt_opcode;
+
+/* rcodes for pkts */
+enum sldns_enum_pkt_rcode {
+        LDNS_RCODE_NOERROR = 0,
+        LDNS_RCODE_FORMERR = 1,
+        LDNS_RCODE_SERVFAIL = 2,
+        LDNS_RCODE_NXDOMAIN = 3,
+        LDNS_RCODE_NOTIMPL = 4,
+        LDNS_RCODE_REFUSED = 5,
+        LDNS_RCODE_YXDOMAIN = 6,
+        LDNS_RCODE_YXRRSET = 7,
+        LDNS_RCODE_NXRRSET = 8,
+        LDNS_RCODE_NOTAUTH = 9,
+        LDNS_RCODE_NOTZONE = 10
+};
+typedef enum sldns_enum_pkt_rcode sldns_pkt_rcode;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_PKTHDR_H */
diff --git a/external/unbound/sldns/rrdef.c b/external/unbound/sldns/rrdef.c
new file mode 100644
index 000000000..72161d7b6
--- /dev/null
+++ b/external/unbound/sldns/rrdef.c
@@ -0,0 +1,734 @@
+/* rrdef.c
+ *
+ * access functions to rr definitions list.
+ * a Net::DNS like library for C
+ * LibDNS Team @ NLnet Labs
+ *
+ * (c) NLnet Labs, 2004-2006
+ * See the file LICENSE for the license
+ */
+/**
+ * \file
+ *
+ * Defines resource record types and constants.
+ */
+#include "config.h"
+#include "sldns/rrdef.h"
+#include "sldns/parseutil.h"
+
+/* classes  */
+static sldns_lookup_table sldns_rr_classes_data[] = {
+        { LDNS_RR_CLASS_IN, "IN" },
+        { LDNS_RR_CLASS_CH, "CH" },
+        { LDNS_RR_CLASS_HS, "HS" },
+        { LDNS_RR_CLASS_NONE, "NONE" },
+        { LDNS_RR_CLASS_ANY, "ANY" },
+        { 0, NULL }
+};
+sldns_lookup_table* sldns_rr_classes = sldns_rr_classes_data;
+
+/* types */
+static const sldns_rdf_type type_0_wireformat[] = { LDNS_RDF_TYPE_UNKNOWN };
+static const sldns_rdf_type type_a_wireformat[] = { LDNS_RDF_TYPE_A };
+static const sldns_rdf_type type_ns_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_md_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_mf_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_cname_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_soa_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_INT32, 
+	LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_PERIOD,
+	LDNS_RDF_TYPE_PERIOD
+};
+static const sldns_rdf_type type_mb_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_mg_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_mr_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_wks_wireformat[] = {
+	LDNS_RDF_TYPE_A, LDNS_RDF_TYPE_WKS
+};
+static const sldns_rdf_type type_ptr_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_hinfo_wireformat[] = {
+	LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
+};
+static const sldns_rdf_type type_minfo_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_mx_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_rp_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_afsdb_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_x25_wireformat[] = { LDNS_RDF_TYPE_STR };
+static const sldns_rdf_type type_isdn_wireformat[] = {
+	LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
+};
+static const sldns_rdf_type type_rt_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_nsap_wireformat[] = {
+	LDNS_RDF_TYPE_NSAP
+};
+static const sldns_rdf_type type_nsap_ptr_wireformat[] = {
+	LDNS_RDF_TYPE_STR
+};
+static const sldns_rdf_type type_sig_wireformat[] = {
+	LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT32,
+	LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_key_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_px_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_gpos_wireformat[] = {
+	LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
+};
+static const sldns_rdf_type type_aaaa_wireformat[] = { LDNS_RDF_TYPE_AAAA };
+static const sldns_rdf_type type_loc_wireformat[] = { LDNS_RDF_TYPE_LOC };
+static const sldns_rdf_type type_nxt_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_UNKNOWN
+};
+static const sldns_rdf_type type_eid_wireformat[] = {
+	LDNS_RDF_TYPE_HEX
+};
+static const sldns_rdf_type type_nimloc_wireformat[] = {
+	LDNS_RDF_TYPE_HEX
+};
+static const sldns_rdf_type type_srv_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_atma_wireformat[] = {
+	LDNS_RDF_TYPE_ATMA
+};
+static const sldns_rdf_type type_naptr_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_kx_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_cert_wireformat[] = {
+	 LDNS_RDF_TYPE_CERT_ALG, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_a6_wireformat[] = { LDNS_RDF_TYPE_UNKNOWN };
+static const sldns_rdf_type type_dname_wireformat[] = { LDNS_RDF_TYPE_DNAME };
+static const sldns_rdf_type type_sink_wireformat[] = { LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_apl_wireformat[] = {
+	LDNS_RDF_TYPE_APL
+};
+static const sldns_rdf_type type_ds_wireformat[] = {
+	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_HEX
+};
+static const sldns_rdf_type type_sshfp_wireformat[] = {
+	LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_HEX
+};
+static const sldns_rdf_type type_ipseckey_wireformat[] = {
+	LDNS_RDF_TYPE_IPSECKEY
+};
+static const sldns_rdf_type type_rrsig_wireformat[] = {
+	LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT32,
+	LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_nsec_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_NSEC
+};
+static const sldns_rdf_type type_dhcid_wireformat[] = {
+	LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_talink_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
+};
+/* nsec3 is some vars, followed by same type of data of nsec */
+static const sldns_rdf_type type_nsec3_wireformat[] = {
+/*	LDNS_RDF_TYPE_NSEC3_VARS, LDNS_RDF_TYPE_NSEC3_NEXT_OWNER, LDNS_RDF_TYPE_NSEC*/
+	LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_NSEC3_SALT, LDNS_RDF_TYPE_NSEC3_NEXT_OWNER, LDNS_RDF_TYPE_NSEC
+};
+
+static const sldns_rdf_type type_nsec3param_wireformat[] = {
+/*	LDNS_RDF_TYPE_NSEC3_PARAMS_VARS*/
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_NSEC3_SALT
+};
+
+static const sldns_rdf_type type_dnskey_wireformat[] = {
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_ALG,
+	LDNS_RDF_TYPE_B64
+};
+static const sldns_rdf_type type_tkey_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME,
+	LDNS_RDF_TYPE_TIME,
+	LDNS_RDF_TYPE_TIME,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT16_DATA,
+	LDNS_RDF_TYPE_INT16_DATA,
+};
+static const sldns_rdf_type type_tsig_wireformat[] = {
+	LDNS_RDF_TYPE_DNAME,
+	LDNS_RDF_TYPE_TSIGTIME,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT16_DATA,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT16_DATA
+};
+static const sldns_rdf_type type_tlsa_wireformat[] = {
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_HEX
+};
+static const sldns_rdf_type type_hip_wireformat[] = {
+	LDNS_RDF_TYPE_HIP
+};
+static const sldns_rdf_type type_nid_wireformat[] = {
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_ILNP64
+};
+static const sldns_rdf_type type_l32_wireformat[] = {
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_A
+};
+static const sldns_rdf_type type_l64_wireformat[] = {
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_ILNP64
+};
+static const sldns_rdf_type type_lp_wireformat[] = {
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_DNAME
+};
+static const sldns_rdf_type type_eui48_wireformat[] = {
+	LDNS_RDF_TYPE_EUI48
+};
+static const sldns_rdf_type type_eui64_wireformat[] = {
+	LDNS_RDF_TYPE_EUI64
+};
+#ifdef DRAFT_RRTYPES
+static const sldns_rdf_type type_uri_wireformat[] = {
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_INT16,
+	LDNS_RDF_TYPE_LONG_STR
+};
+#endif
+static const sldns_rdf_type type_caa_wireformat[] = {
+	LDNS_RDF_TYPE_INT8,
+	LDNS_RDF_TYPE_TAG,
+	LDNS_RDF_TYPE_LONG_STR
+};
+
+/* All RR's defined in 1035 are well known and can thus
+ * be compressed. See RFC3597. These RR's are:
+ * CNAME HINFO MB MD MF MG MINFO MR MX NULL NS PTR SOA TXT
+ */
+static sldns_rr_descriptor rdata_field_descriptors[] = {
+	/* 0 */
+	{ 0, NULL, 0, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 1 */
+	{LDNS_RR_TYPE_A, "A", 1, 1, type_a_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 2 */
+	{LDNS_RR_TYPE_NS, "NS", 1, 1, type_ns_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 3 */
+	{LDNS_RR_TYPE_MD, "MD", 1, 1, type_md_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 4 */
+	{LDNS_RR_TYPE_MF, "MF", 1, 1, type_mf_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 5 */
+	{LDNS_RR_TYPE_CNAME, "CNAME", 1, 1, type_cname_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 6 */
+	{LDNS_RR_TYPE_SOA, "SOA", 7, 7, type_soa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 2 },
+	/* 7 */
+	{LDNS_RR_TYPE_MB, "MB", 1, 1, type_mb_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 8 */
+	{LDNS_RR_TYPE_MG, "MG", 1, 1, type_mg_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 9 */
+	{LDNS_RR_TYPE_MR, "MR", 1, 1, type_mr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 10 */
+	{LDNS_RR_TYPE_NULL, "NULL", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 11 */
+	{LDNS_RR_TYPE_WKS, "WKS", 2, 2, type_wks_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 12 */
+	{LDNS_RR_TYPE_PTR, "PTR", 1, 1, type_ptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 13 */
+	{LDNS_RR_TYPE_HINFO, "HINFO", 2, 2, type_hinfo_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 14 */
+	{LDNS_RR_TYPE_MINFO, "MINFO", 2, 2, type_minfo_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 2 },
+	/* 15 */
+	{LDNS_RR_TYPE_MX, "MX", 2, 2, type_mx_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
+	/* 16 */
+	{LDNS_RR_TYPE_TXT, "TXT", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
+	/* 17 */
+	{LDNS_RR_TYPE_RP, "RP", 2, 2, type_rp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
+	/* 18 */
+	{LDNS_RR_TYPE_AFSDB, "AFSDB", 2, 2, type_afsdb_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 19 */
+	{LDNS_RR_TYPE_X25, "X25", 1, 1, type_x25_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 20 */
+	{LDNS_RR_TYPE_ISDN, "ISDN", 1, 2, type_isdn_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 21 */
+	{LDNS_RR_TYPE_RT, "RT", 2, 2, type_rt_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 22 */
+	{LDNS_RR_TYPE_NSAP, "NSAP", 1, 1, type_nsap_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 23 */
+	{LDNS_RR_TYPE_NSAP_PTR, "NSAP-PTR", 1, 1, type_nsap_ptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 24 */
+	{LDNS_RR_TYPE_SIG, "SIG", 9, 9, type_sig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 25 */
+	{LDNS_RR_TYPE_KEY, "KEY", 4, 4, type_key_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 26 */
+	{LDNS_RR_TYPE_PX, "PX", 3, 3, type_px_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
+	/* 27 */
+	{LDNS_RR_TYPE_GPOS, "GPOS", 3, 3, type_gpos_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 28 */
+	{LDNS_RR_TYPE_AAAA, "AAAA", 1, 1, type_aaaa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 29 */
+	{LDNS_RR_TYPE_LOC, "LOC", 1, 1, type_loc_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 30 */
+	{LDNS_RR_TYPE_NXT, "NXT", 2, 2, type_nxt_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 31 */
+	{LDNS_RR_TYPE_EID, "EID", 1, 1, type_eid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 32 */
+	{LDNS_RR_TYPE_NIMLOC, "NIMLOC", 1, 1, type_nimloc_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 33 */
+	{LDNS_RR_TYPE_SRV, "SRV", 4, 4, type_srv_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 34 */
+	{LDNS_RR_TYPE_ATMA, "ATMA", 1, 1, type_atma_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 35 */
+	{LDNS_RR_TYPE_NAPTR, "NAPTR", 6, 6, type_naptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 36 */
+	{LDNS_RR_TYPE_KX, "KX", 2, 2, type_kx_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 37 */
+	{LDNS_RR_TYPE_CERT, "CERT", 4, 4, type_cert_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 38 */
+	{LDNS_RR_TYPE_A6, "A6", 1, 1, type_a6_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 39 */
+	{LDNS_RR_TYPE_DNAME, "DNAME", 1, 1, type_dname_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 40 */
+	{LDNS_RR_TYPE_SINK, "SINK", 1, 1, type_sink_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 41 */
+	{LDNS_RR_TYPE_OPT, "OPT", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 42 */
+	{LDNS_RR_TYPE_APL, "APL", 0, 0, type_apl_wireformat, LDNS_RDF_TYPE_APL, LDNS_RR_NO_COMPRESS, 0 },
+	/* 43 */
+	{LDNS_RR_TYPE_DS, "DS", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 44 */
+	{LDNS_RR_TYPE_SSHFP, "SSHFP", 3, 3, type_sshfp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 45 */
+	{LDNS_RR_TYPE_IPSECKEY, "IPSECKEY", 1, 1, type_ipseckey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 46 */
+	{LDNS_RR_TYPE_RRSIG, "RRSIG", 9, 9, type_rrsig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 47 */
+	{LDNS_RR_TYPE_NSEC, "NSEC", 1, 2, type_nsec_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* 48 */
+	{LDNS_RR_TYPE_DNSKEY, "DNSKEY", 4, 4, type_dnskey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 49 */
+	{LDNS_RR_TYPE_DHCID, "DHCID", 1, 1, type_dhcid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 50 */
+	{LDNS_RR_TYPE_NSEC3, "NSEC3", 5, 6, type_nsec3_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 51 */
+	{LDNS_RR_TYPE_NSEC3PARAM, "NSEC3PARAM", 4, 4, type_nsec3param_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 52 */
+	{LDNS_RR_TYPE_TLSA, "TLSA", 4, 4, type_tlsa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+{LDNS_RR_TYPE_NULL, "TYPE53", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE54", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+        /* 55
+	 * Hip ends with 0 or more Rendezvous Servers represented as dname's.
+	 * Hence the LDNS_RDF_TYPE_DNAME _variable field and the _maximum field
+	 * set to 0.
+	 */
+	{LDNS_RR_TYPE_HIP, "HIP", 1, 1, type_hip_wireformat, LDNS_RDF_TYPE_DNAME, LDNS_RR_NO_COMPRESS, 0 },
+
+#ifdef DRAFT_RRTYPES
+	/* 56 */
+	{LDNS_RR_TYPE_NINFO, "NINFO", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
+	/* 57 */
+	{LDNS_RR_TYPE_RKEY, "RKEY", 4, 4, type_key_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+#else
+{LDNS_RR_TYPE_NULL, "TYPE56", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE57", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+#endif
+	/* 58 */
+	{LDNS_RR_TYPE_TALINK, "TALINK", 2, 2, type_talink_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
+
+	/* 59 */
+	{LDNS_RR_TYPE_CDS, "CDS", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 60 */
+	{LDNS_RR_TYPE_CDNSKEY, "CDNSKEY", 4, 4, type_dnskey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE61", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE62", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE63", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE64", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE65", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE66", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE67", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE68", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE69", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE70", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE71", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE72", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE73", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE74", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE75", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE76", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE77", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE78", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE79", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE80", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE81", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE82", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE83", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE84", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE85", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE86", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE87", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE88", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE89", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE90", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE91", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE92", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE93", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE94", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE95", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE96", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE97", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE98", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+	/* 99 */
+	{LDNS_RR_TYPE_SPF,  "SPF", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
+
+	/* UINFO  [IANA-Reserved] */
+{LDNS_RR_TYPE_NULL, "TYPE100", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* UID    [IANA-Reserved] */
+{LDNS_RR_TYPE_NULL, "TYPE101", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* GID    [IANA-Reserved] */
+{LDNS_RR_TYPE_NULL, "TYPE102", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* UNSPEC [IANA-Reserved] */
+{LDNS_RR_TYPE_NULL, "TYPE103", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+	/* 104 */
+	{LDNS_RR_TYPE_NID, "NID", 2, 2, type_nid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 105 */
+	{LDNS_RR_TYPE_L32, "L32", 2, 2, type_l32_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 106 */
+	{LDNS_RR_TYPE_L64, "L64", 2, 2, type_l64_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 107 */
+	{LDNS_RR_TYPE_LP, "LP", 2, 2, type_lp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+
+	/* 108 */
+	{LDNS_RR_TYPE_EUI48, "EUI48", 1, 1, type_eui48_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* 109 */
+	{LDNS_RR_TYPE_EUI64, "EUI64", 1, 1, type_eui64_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+{LDNS_RR_TYPE_NULL, "TYPE110", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE111", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE112", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE113", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE114", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE115", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE116", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE117", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE118", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE119", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE120", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE121", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE122", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE123", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE124", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE125", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE126", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE127", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE128", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE129", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE130", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE131", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE132", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE133", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE134", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE135", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE136", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE137", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE138", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE139", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE140", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE141", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE142", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE143", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE144", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE145", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE146", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE147", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE148", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE149", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE150", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE151", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE152", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE153", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE154", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE155", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE156", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE157", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE158", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE159", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE160", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE161", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE162", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE163", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE164", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE165", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE166", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE167", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE168", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE169", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE170", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE171", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE172", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE173", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE174", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE175", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE176", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE177", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE178", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE179", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE180", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE181", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE182", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE183", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE184", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE185", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE186", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE187", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE188", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE189", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE190", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE191", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE192", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE193", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE194", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE195", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE196", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE197", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE198", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE199", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE200", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE201", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE202", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE203", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE204", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE205", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE206", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE207", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE208", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE209", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE210", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE211", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE212", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE213", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE214", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE215", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE216", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE217", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE218", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE219", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE220", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE221", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE222", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE223", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE224", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE225", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE226", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE227", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE228", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE229", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE230", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE231", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE232", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE233", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE234", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE235", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE236", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE237", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE238", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE239", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE240", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE241", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE242", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE243", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE244", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE245", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE246", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE247", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+{LDNS_RR_TYPE_NULL, "TYPE248", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+	/* LDNS_RDF_TYPE_INT16_DATA takes two fields (length and data) as one.
+	 * So, unlike RFC 2930 spec, we have 7 min/max rdf's i.s.o. 8/9.
+	 */
+	/* 249 */
+	{LDNS_RR_TYPE_TKEY, "TKEY", 7, 7, type_tkey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+	/* LDNS_RDF_TYPE_INT16_DATA takes two fields (length and data) as one.
+	 * So, unlike RFC 2930 spec, we have 7 min/max rdf's i.s.o. 8/9.
+	 */
+	/* 250 */
+	{LDNS_RR_TYPE_TSIG, "TSIG", 7, 7, type_tsig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
+
+	/* IXFR: A request for a transfer of an incremental zone transfer */
+{LDNS_RR_TYPE_IXFR, "IXFR", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* AXFR: A request for a transfer of an entire zone */
+{LDNS_RR_TYPE_AXFR, "AXFR", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* MAILB: A request for mailbox-related records (MB, MG or MR) */
+{LDNS_RR_TYPE_MAILB, "MAILB", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* MAILA: A request for mail agent RRs (Obsolete - see MX) */
+{LDNS_RR_TYPE_MAILA, "MAILA", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+	/* ANY: A request for all (available) records */
+{LDNS_RR_TYPE_ANY, "ANY", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+#ifdef DRAFT_RRTYPES
+	/* 256 */
+	{LDNS_RR_TYPE_URI, "URI", 3, 3, type_uri_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+#else
+{LDNS_RR_TYPE_NULL, "TYPE256", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+#endif
+	/* 257 */
+	{LDNS_RR_TYPE_CAA, "CAA", 3, 3, type_caa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+
+/* split in array, no longer contiguous */
+
+#ifdef DRAFT_RRTYPES
+	/* 32768 */
+	{LDNS_RR_TYPE_TA, "TA", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+#else
+{LDNS_RR_TYPE_NULL, "TYPE32768", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
+#endif
+	/* 32769 */
+	{LDNS_RR_TYPE_DLV, "DLV", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 }
+};
+
+/**
+ * \def LDNS_RDATA_FIELD_DESCRIPTORS_COUNT
+ * computes the number of rdata fields
+ */
+#define LDNS_RDATA_FIELD_DESCRIPTORS_COUNT \
+	(sizeof(rdata_field_descriptors)/sizeof(rdata_field_descriptors[0]))
+
+const sldns_rr_descriptor *
+sldns_rr_descript(uint16_t type)
+{
+	size_t i;
+	if (type < LDNS_RDATA_FIELD_DESCRIPTORS_COMMON) {
+		return &rdata_field_descriptors[type];
+	} else {
+		/* because not all array index equals type code */
+		for (i = LDNS_RDATA_FIELD_DESCRIPTORS_COMMON;
+		     i < LDNS_RDATA_FIELD_DESCRIPTORS_COUNT;
+		     i++) {
+		        if (rdata_field_descriptors[i]._type == type) {
+		     		return &rdata_field_descriptors[i];
+			}
+		}
+                return &rdata_field_descriptors[0];
+	}
+}
+
+size_t
+sldns_rr_descriptor_minimum(const sldns_rr_descriptor *descriptor)
+{
+	if (descriptor) {
+		return descriptor->_minimum;
+	} else {
+		return 0;
+	}
+}
+
+size_t
+sldns_rr_descriptor_maximum(const sldns_rr_descriptor *descriptor)
+{
+	if (descriptor) {
+		if (descriptor->_variable != LDNS_RDF_TYPE_NONE) {
+			return 65535; /* cannot be more than 64k */
+		} else {
+			return descriptor->_maximum;
+		}
+	} else {
+		return 0;
+	}
+}
+
+sldns_rdf_type
+sldns_rr_descriptor_field_type(const sldns_rr_descriptor *descriptor,
+                              size_t index)
+{
+	assert(descriptor != NULL);
+	assert(index < descriptor->_maximum
+	       || descriptor->_variable != LDNS_RDF_TYPE_NONE);
+	if (index < descriptor->_maximum) {
+		return descriptor->_wireformat[index];
+	} else {
+		return descriptor->_variable;
+	}
+}
+
+sldns_rr_type
+sldns_get_rr_type_by_name(const char *name)
+{
+	unsigned int i;
+	const char *desc_name;
+	const sldns_rr_descriptor *desc;
+
+	/* TYPEXX representation */
+	if (strlen(name) > 4 && strncasecmp(name, "TYPE", 4) == 0) {
+		return atoi(name + 4);
+	}
+
+	/* Normal types */
+	for (i = 0; i < (unsigned int) LDNS_RDATA_FIELD_DESCRIPTORS_COUNT; i++) {
+		desc = &rdata_field_descriptors[i];
+		desc_name = desc->_name;
+		if(desc_name &&
+		   strlen(name) == strlen(desc_name) &&
+		   strncasecmp(name, desc_name, strlen(desc_name)) == 0) {
+			/* because not all array index equals type code */
+			return desc->_type;
+		}
+	}
+
+	/* special cases for query types */
+	if (strlen(name) == 4 && strncasecmp(name, "IXFR", 4) == 0) {
+		return 251;
+	} else if (strlen(name) == 4 && strncasecmp(name, "AXFR", 4) == 0) {
+		return 252;
+	} else if (strlen(name) == 5 && strncasecmp(name, "MAILB", 5) == 0) {
+		return 253;
+	} else if (strlen(name) == 5 && strncasecmp(name, "MAILA", 5) == 0) {
+		return 254;
+	} else if (strlen(name) == 3 && strncasecmp(name, "ANY", 3) == 0) {
+		return 255;
+	}
+
+	return 0;
+}
+
+sldns_rr_class
+sldns_get_rr_class_by_name(const char *name)
+{
+	sldns_lookup_table *lt;
+
+	/* CLASSXX representation */
+	if (strlen(name) > 5 && strncasecmp(name, "CLASS", 5) == 0) {
+		return atoi(name + 5);
+	}
+
+	/* Normal types */
+	lt = sldns_lookup_by_name(sldns_rr_classes, name);
+	if (lt) {
+		return lt->id;
+	}
+	return 0;
+}
diff --git a/external/unbound/sldns/rrdef.h b/external/unbound/sldns/rrdef.h
new file mode 100644
index 000000000..933bcdfbf
--- /dev/null
+++ b/external/unbound/sldns/rrdef.h
@@ -0,0 +1,503 @@
+/*
+ * rrdef.h
+ *
+ * RR definitions
+ *
+ * a Net::DNS like library for C
+ *
+ * (c) NLnet Labs, 2005-2006
+ *
+ * See the file LICENSE for the license
+ */
+
+/**
+ * \file
+ *
+ * Defines resource record types and constants.
+ */
+
+#ifndef LDNS_RRDEF_H
+#define LDNS_RRDEF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Maximum length of a dname label */
+#define LDNS_MAX_LABELLEN     63
+/** Maximum length of a complete dname */
+#define LDNS_MAX_DOMAINLEN    255
+/** Maximum number of pointers in 1 dname */
+#define LDNS_MAX_POINTERS	65535
+/** The bytes TTL, CLASS and length use up in an rr */
+#define LDNS_RR_OVERHEAD	10
+
+#define LDNS_DNSSEC_KEYPROTO    3
+#define LDNS_KEY_ZONE_KEY   0x0100 /* set for ZSK&KSK, rfc 4034 */
+#define LDNS_KEY_SEP_KEY    0x0001 /* set for KSK, rfc 4034 */
+#define LDNS_KEY_REVOKE_KEY 0x0080 /* used to revoke KSK, rfc 5011 */
+
+/* The first fields are contiguous and can be referenced instantly */
+#define LDNS_RDATA_FIELD_DESCRIPTORS_COMMON 258
+
+/** lookuptable for rr classes  */
+extern struct sldns_struct_lookup_table* sldns_rr_classes;
+
+/**
+ *  The different RR classes.
+ */
+enum sldns_enum_rr_class
+{
+	/** the Internet */
+	LDNS_RR_CLASS_IN 	= 1,
+	/** Chaos class */
+	LDNS_RR_CLASS_CH	= 3,
+	/** Hesiod (Dyer 87) */
+	LDNS_RR_CLASS_HS	= 4,
+	/** None class, dynamic update */
+	LDNS_RR_CLASS_NONE      = 254,
+	/** Any class */
+	LDNS_RR_CLASS_ANY	= 255,
+
+	LDNS_RR_CLASS_FIRST     = 0,
+	LDNS_RR_CLASS_LAST      = 65535,
+	LDNS_RR_CLASS_COUNT     = LDNS_RR_CLASS_LAST - LDNS_RR_CLASS_FIRST + 1
+};
+typedef enum sldns_enum_rr_class sldns_rr_class;
+
+/**
+ *  Used to specify whether compression is allowed.
+ */
+enum sldns_enum_rr_compress
+{
+	/** compression is allowed */
+	LDNS_RR_COMPRESS,
+	LDNS_RR_NO_COMPRESS
+};
+typedef enum sldns_enum_rr_compress sldns_rr_compress;
+
+/**
+ * The different RR types.
+ */
+enum sldns_enum_rr_type
+{
+	/**  a host address */
+	LDNS_RR_TYPE_A = 1,
+	/**  an authoritative name server */
+	LDNS_RR_TYPE_NS = 2,
+	/**  a mail destination (Obsolete - use MX) */
+	LDNS_RR_TYPE_MD = 3,
+	/**  a mail forwarder (Obsolete - use MX) */
+	LDNS_RR_TYPE_MF = 4,
+	/**  the canonical name for an alias */
+	LDNS_RR_TYPE_CNAME = 5,
+	/**  marks the start of a zone of authority */
+	LDNS_RR_TYPE_SOA = 6,
+	/**  a mailbox domain name (EXPERIMENTAL) */
+	LDNS_RR_TYPE_MB = 7,
+	/**  a mail group member (EXPERIMENTAL) */
+	LDNS_RR_TYPE_MG = 8,
+	/**  a mail rename domain name (EXPERIMENTAL) */
+	LDNS_RR_TYPE_MR = 9,
+	/**  a null RR (EXPERIMENTAL) */
+	LDNS_RR_TYPE_NULL = 10,
+	/**  a well known service description */
+	LDNS_RR_TYPE_WKS = 11,
+	/**  a domain name pointer */
+	LDNS_RR_TYPE_PTR = 12,
+	/**  host information */
+	LDNS_RR_TYPE_HINFO = 13,
+	/**  mailbox or mail list information */
+	LDNS_RR_TYPE_MINFO = 14,
+	/**  mail exchange */
+	LDNS_RR_TYPE_MX = 15,
+	/**  text strings */
+	LDNS_RR_TYPE_TXT = 16,
+	/**  RFC1183 */
+	LDNS_RR_TYPE_RP = 17,
+	/**  RFC1183 */
+	LDNS_RR_TYPE_AFSDB = 18,
+	/**  RFC1183 */
+	LDNS_RR_TYPE_X25 = 19,
+	/**  RFC1183 */
+	LDNS_RR_TYPE_ISDN = 20,
+	/**  RFC1183 */
+	LDNS_RR_TYPE_RT = 21,
+	/**  RFC1706 */
+	LDNS_RR_TYPE_NSAP = 22,
+	/**  RFC1348 */
+	LDNS_RR_TYPE_NSAP_PTR = 23,
+	/**  2535typecode */
+	LDNS_RR_TYPE_SIG = 24,
+	/**  2535typecode */
+	LDNS_RR_TYPE_KEY = 25,
+	/**  RFC2163 */
+	LDNS_RR_TYPE_PX = 26,
+	/**  RFC1712 */
+	LDNS_RR_TYPE_GPOS = 27,
+	/**  ipv6 address */
+	LDNS_RR_TYPE_AAAA = 28,
+	/**  LOC record  RFC1876 */
+	LDNS_RR_TYPE_LOC = 29,
+	/**  2535typecode */
+	LDNS_RR_TYPE_NXT = 30,
+	/**  draft-ietf-nimrod-dns-01.txt */
+	LDNS_RR_TYPE_EID = 31,
+	/**  draft-ietf-nimrod-dns-01.txt */
+	LDNS_RR_TYPE_NIMLOC = 32,
+	/**  SRV record RFC2782 */
+	LDNS_RR_TYPE_SRV = 33,
+	/**  http://www.jhsoft.com/rfc/af-saa-0069.000.rtf */
+	LDNS_RR_TYPE_ATMA = 34,
+	/**  RFC2915 */
+	LDNS_RR_TYPE_NAPTR = 35,
+	/**  RFC2230 */
+	LDNS_RR_TYPE_KX = 36,
+	/**  RFC2538 */
+	LDNS_RR_TYPE_CERT = 37,
+	/**  RFC2874 */
+	LDNS_RR_TYPE_A6 = 38,
+	/**  RFC2672 */
+	LDNS_RR_TYPE_DNAME = 39,
+	/**  dnsind-kitchen-sink-02.txt */
+	LDNS_RR_TYPE_SINK = 40,
+	/**  Pseudo OPT record... */
+	LDNS_RR_TYPE_OPT = 41,
+	/**  RFC3123 */
+	LDNS_RR_TYPE_APL = 42,
+	/**  RFC4034, RFC3658 */
+	LDNS_RR_TYPE_DS = 43,
+	/**  SSH Key Fingerprint */
+	LDNS_RR_TYPE_SSHFP = 44, /* RFC 4255 */
+	/**  IPsec Key */
+	LDNS_RR_TYPE_IPSECKEY = 45, /* RFC 4025 */
+	/**  DNSSEC */
+	LDNS_RR_TYPE_RRSIG = 46, /* RFC 4034 */
+	LDNS_RR_TYPE_NSEC = 47, /* RFC 4034 */
+	LDNS_RR_TYPE_DNSKEY = 48, /* RFC 4034 */
+
+	LDNS_RR_TYPE_DHCID = 49, /* RFC 4701 */
+	/* NSEC3 */
+	LDNS_RR_TYPE_NSEC3 = 50, /* RFC 5155 */
+	LDNS_RR_TYPE_NSEC3PARAM = 51, /* RFC 5155 */
+	LDNS_RR_TYPE_NSEC3PARAMS = 51,
+	LDNS_RR_TYPE_TLSA = 52, /* RFC 6698 */
+
+	LDNS_RR_TYPE_HIP = 55, /* RFC 5205 */
+
+	/** draft-reid-dnsext-zs */
+	LDNS_RR_TYPE_NINFO = 56,
+	/** draft-reid-dnsext-rkey */
+	LDNS_RR_TYPE_RKEY = 57,
+        /** draft-ietf-dnsop-trust-history */
+        LDNS_RR_TYPE_TALINK = 58,
+	LDNS_RR_TYPE_CDS = 59, /** RFC 7344 */
+	LDNS_RR_TYPE_CDNSKEY = 60, /** RFC 7344 */
+
+	LDNS_RR_TYPE_SPF = 99, /* RFC 4408 */
+
+	LDNS_RR_TYPE_UINFO = 100,
+	LDNS_RR_TYPE_UID = 101,
+	LDNS_RR_TYPE_GID = 102,
+	LDNS_RR_TYPE_UNSPEC = 103,
+
+	LDNS_RR_TYPE_NID = 104, /* RFC 6742 */
+	LDNS_RR_TYPE_L32 = 105, /* RFC 6742 */
+	LDNS_RR_TYPE_L64 = 106, /* RFC 6742 */
+	LDNS_RR_TYPE_LP = 107, /* RFC 6742 */
+
+	/** draft-jabley-dnsext-eui48-eui64-rrtypes */
+	LDNS_RR_TYPE_EUI48 = 108,
+	LDNS_RR_TYPE_EUI64 = 109,
+
+	LDNS_RR_TYPE_TKEY = 249, /* RFC 2930 */
+	LDNS_RR_TYPE_TSIG = 250,
+	LDNS_RR_TYPE_IXFR = 251,
+	LDNS_RR_TYPE_AXFR = 252,
+	/**  A request for mailbox-related records (MB, MG or MR) */
+	LDNS_RR_TYPE_MAILB = 253,
+	/**  A request for mail agent RRs (Obsolete - see MX) */
+	LDNS_RR_TYPE_MAILA = 254,
+	/**  any type (wildcard) */
+	LDNS_RR_TYPE_ANY = 255,
+	/** draft-faltstrom-uri-06 */
+	LDNS_RR_TYPE_URI = 256,
+	LDNS_RR_TYPE_CAA = 257, /* RFC 6844 */
+
+	/** DNSSEC Trust Authorities */
+	LDNS_RR_TYPE_TA = 32768,
+	/* RFC 4431, 5074, DNSSEC Lookaside Validation */
+	LDNS_RR_TYPE_DLV = 32769,
+
+	/* type codes from nsec3 experimental phase
+	LDNS_RR_TYPE_NSEC3 = 65324,
+	LDNS_RR_TYPE_NSEC3PARAMS = 65325, */
+	LDNS_RR_TYPE_FIRST = 0,
+	LDNS_RR_TYPE_LAST  = 65535,
+	LDNS_RR_TYPE_COUNT = LDNS_RR_TYPE_LAST - LDNS_RR_TYPE_FIRST + 1
+};
+typedef enum sldns_enum_rr_type sldns_rr_type;
+
+/* RDATA */
+#define LDNS_MAX_RDFLEN	65535
+
+#define LDNS_RDF_SIZE_BYTE              1
+#define LDNS_RDF_SIZE_WORD              2
+#define LDNS_RDF_SIZE_DOUBLEWORD        4
+#define LDNS_RDF_SIZE_6BYTES            6
+#define LDNS_RDF_SIZE_8BYTES            8
+#define LDNS_RDF_SIZE_16BYTES           16
+
+#define LDNS_NSEC3_VARS_OPTOUT_MASK 0x01
+
+#define LDNS_APL_IP4            1
+#define LDNS_APL_IP6            2
+#define LDNS_APL_MASK           0x7f
+#define LDNS_APL_NEGATION       0x80
+
+/**
+ * The different types of RDATA fields.
+ */
+enum sldns_enum_rdf_type
+{
+	/** none */
+	LDNS_RDF_TYPE_NONE,
+	/** domain name */
+	LDNS_RDF_TYPE_DNAME,
+	/** 8 bits */
+	LDNS_RDF_TYPE_INT8,
+	/** 16 bits */
+	LDNS_RDF_TYPE_INT16,
+	/** 32 bits */
+	LDNS_RDF_TYPE_INT32,
+	/** A record */
+	LDNS_RDF_TYPE_A,
+	/** AAAA record */
+	LDNS_RDF_TYPE_AAAA,
+	/** txt string */
+	LDNS_RDF_TYPE_STR,
+	/** apl data */
+	LDNS_RDF_TYPE_APL,
+	/** b32 string */
+	LDNS_RDF_TYPE_B32_EXT,
+	/** b64 string */
+	LDNS_RDF_TYPE_B64,
+	/** hex string */
+	LDNS_RDF_TYPE_HEX,
+	/** nsec type codes */
+	LDNS_RDF_TYPE_NSEC,
+	/** a RR type */
+	LDNS_RDF_TYPE_TYPE,
+	/** a class */
+	LDNS_RDF_TYPE_CLASS,
+	/** certificate algorithm */
+	LDNS_RDF_TYPE_CERT_ALG,
+	/** a key algorithm */
+        LDNS_RDF_TYPE_ALG,
+        /** unknown types */
+        LDNS_RDF_TYPE_UNKNOWN,
+        /** time (32 bits) */
+        LDNS_RDF_TYPE_TIME,
+        /** period */
+        LDNS_RDF_TYPE_PERIOD,
+        /** tsig time 48 bits */
+        LDNS_RDF_TYPE_TSIGTIME,
+	/** Represents the Public Key Algorithm, HIT and Public Key fields
+	    for the HIP RR types.  A HIP specific rdf type is used because of
+	    the unusual layout in wireformat (see RFC 5205 Section 5) */
+	LDNS_RDF_TYPE_HIP,
+        /** variable length any type rdata where the length
+            is specified by the first 2 bytes */
+        LDNS_RDF_TYPE_INT16_DATA,
+        /** protocol and port bitmaps */
+        LDNS_RDF_TYPE_SERVICE,
+        /** location data */
+        LDNS_RDF_TYPE_LOC,
+        /** well known services */
+        LDNS_RDF_TYPE_WKS,
+        /** NSAP */
+        LDNS_RDF_TYPE_NSAP,
+        /** ATMA */
+        LDNS_RDF_TYPE_ATMA,
+        /** IPSECKEY */
+        LDNS_RDF_TYPE_IPSECKEY,
+        /** nsec3 hash salt */
+        LDNS_RDF_TYPE_NSEC3_SALT,
+        /** nsec3 base32 string (with length byte on wire */
+        LDNS_RDF_TYPE_NSEC3_NEXT_OWNER,
+
+        /** 4 shorts represented as 4 * 16 bit hex numbers
+         *  seperated by colons. For NID and L64.
+         */
+        LDNS_RDF_TYPE_ILNP64,
+
+        /** 6 * 8 bit hex numbers seperated by dashes. For EUI48. */
+        LDNS_RDF_TYPE_EUI48,
+        /** 8 * 8 bit hex numbers seperated by dashes. For EUI64. */
+        LDNS_RDF_TYPE_EUI64,
+
+        /** A non-zero sequence of US-ASCII letters and numbers in lower case.
+         *  For CAA.
+         */
+        LDNS_RDF_TYPE_TAG,
+
+        /** A <character-string> encoding of the value field as specified 
+         * [RFC1035], Section 5.1., encoded as remaining rdata.
+         * For CAA.
+         */
+        LDNS_RDF_TYPE_LONG_STR,
+
+        /* Aliases */
+        LDNS_RDF_TYPE_BITMAP = LDNS_RDF_TYPE_NSEC
+};
+typedef enum sldns_enum_rdf_type sldns_rdf_type;
+
+/**
+ * Algorithms used in dns
+ */
+enum sldns_enum_algorithm
+{
+        LDNS_RSAMD5             = 1,   /* RFC 4034,4035 */
+        LDNS_DH                 = 2,
+        LDNS_DSA                = 3,
+        LDNS_ECC                = 4,
+        LDNS_RSASHA1            = 5,
+        LDNS_DSA_NSEC3          = 6,
+        LDNS_RSASHA1_NSEC3      = 7,
+        LDNS_RSASHA256          = 8,   /* RFC 5702 */
+        LDNS_RSASHA512          = 10,  /* RFC 5702 */
+        LDNS_ECC_GOST           = 12,  /* RFC 5933 */
+        LDNS_ECDSAP256SHA256    = 13,  /* RFC 6605 */
+        LDNS_ECDSAP384SHA384    = 14,  /* RFC 6605 */
+        LDNS_INDIRECT           = 252,
+        LDNS_PRIVATEDNS         = 253,
+        LDNS_PRIVATEOID         = 254
+};
+typedef enum sldns_enum_algorithm sldns_algorithm;
+
+/**
+ * Hashing algorithms used in the DS record
+ */
+enum sldns_enum_hash
+{
+        LDNS_SHA1               = 1,  /* RFC 4034 */
+        LDNS_SHA256             = 2,  /* RFC 4509 */
+        LDNS_HASH_GOST          = 3,  /* RFC 5933 */
+        LDNS_SHA384             = 4   /* RFC 6605 */
+};
+typedef enum sldns_enum_hash sldns_hash;
+
+/**
+ * algorithms used in CERT rrs
+ */
+enum sldns_enum_cert_algorithm
+{
+        LDNS_CERT_PKIX          = 1,
+        LDNS_CERT_SPKI          = 2,
+        LDNS_CERT_PGP           = 3,
+        LDNS_CERT_IPKIX         = 4,
+        LDNS_CERT_ISPKI         = 5,
+        LDNS_CERT_IPGP          = 6,
+        LDNS_CERT_ACPKIX        = 7,
+        LDNS_CERT_IACPKIX       = 8,
+        LDNS_CERT_URI           = 253,
+        LDNS_CERT_OID           = 254
+};
+typedef enum sldns_enum_cert_algorithm sldns_cert_algorithm;
+
+/**
+ * EDNS option codes
+ */
+enum sldns_enum_edns_option
+{
+	LDNS_EDNS_LLQ = 1, /* http://files.dns-sd.org/draft-sekar-dns-llq.txt */
+	LDNS_EDNS_UL = 2, /* http://files.dns-sd.org/draft-sekar-dns-ul.txt */
+	LDNS_EDNS_NSID = 3, /* RFC5001 */
+	/* 4 draft-cheshire-edns0-owner-option */
+	LDNS_EDNS_DAU = 5, /* RFC6975 */
+	LDNS_EDNS_DHU = 6, /* RFC6975 */
+	LDNS_EDNS_N3U = 7, /* RFC6975 */
+	LDNS_EDNS_CLIENT_SUBNET = 8 /* draft-vandergaast-edns-client-subnet */
+};
+typedef enum sldns_enum_edns_option sldns_edns_option;
+
+#define LDNS_EDNS_MASK_DO_BIT 0x8000
+
+/**
+ * Contains all information about resource record types.
+ *
+ * This structure contains, for all rr types, the rdata fields that are defined.
+ */
+struct sldns_struct_rr_descriptor
+{
+	/** Type of the RR that is described here */
+	sldns_rr_type    _type;
+	/** Textual name of the RR type.  */
+	const char *_name;
+	/** Minimum number of rdata fields in the RRs of this type.  */
+	uint8_t     _minimum;
+	/** Maximum number of rdata fields in the RRs of this type.  */
+	uint8_t     _maximum;
+	/** Wireformat specification for the rr, i.e. the types of rdata fields in their respective order. */
+	const sldns_rdf_type *_wireformat;
+	/** Special rdf types */
+	sldns_rdf_type _variable;
+	/** Specifies whether compression can be used for dnames in this RR type. */
+	sldns_rr_compress _compress;
+	/** The number of DNAMEs in the _wireformat string, for parsing. */
+	uint8_t _dname_count;
+};
+typedef struct sldns_struct_rr_descriptor sldns_rr_descriptor;
+
+/**
+ * returns the resource record descriptor for the given rr type.
+ *
+ * \param[in] type the type value of the rr type
+ *\return the sldns_rr_descriptor for this type
+ */
+const sldns_rr_descriptor *sldns_rr_descript(uint16_t type);
+
+/**
+ * returns the minimum number of rdata fields of the rr type this descriptor describes.
+ *
+ * \param[in]  descriptor for an rr type
+ * \return the minimum number of rdata fields
+ */
+size_t sldns_rr_descriptor_minimum(const sldns_rr_descriptor *descriptor);
+
+/**
+ * returns the maximum number of rdata fields of the rr type this descriptor describes.
+ *
+ * \param[in]  descriptor for an rr type
+ * \return the maximum number of rdata fields
+ */
+size_t sldns_rr_descriptor_maximum(const sldns_rr_descriptor *descriptor);
+
+/**
+ * returns the rdf type for the given rdata field number of the rr type for the given descriptor.
+ *
+ * \param[in] descriptor for an rr type
+ * \param[in] field the field number
+ * \return the rdf type for the field
+ */
+sldns_rdf_type sldns_rr_descriptor_field_type(const sldns_rr_descriptor *descriptor, size_t field);
+
+/**
+ * retrieves a rrtype by looking up its name.
+ * \param[in] name a string with the name
+ * \return the type which corresponds with the name
+ */
+sldns_rr_type sldns_get_rr_type_by_name(const char *name);
+
+/**
+ * retrieves a class by looking up its name.
+ * \param[in] name string with the name
+ * \return the cass which corresponds with the name
+ */
+sldns_rr_class sldns_get_rr_class_by_name(const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_RRDEF_H */
diff --git a/external/unbound/sldns/sbuffer.c b/external/unbound/sldns/sbuffer.c
new file mode 100644
index 000000000..a7fe53aa0
--- /dev/null
+++ b/external/unbound/sldns/sbuffer.c
@@ -0,0 +1,178 @@
+/*
+ * buffer.c -- generic memory buffer .
+ *
+ * Copyright (c) 2001-2008, NLnet Labs. All rights reserved.
+ *
+ * See LICENSE for the license.
+ *
+ */
+/**
+ * \file
+ *
+ * This file contains the definition of sldns_buffer, and functions to manipulate those.
+ */
+#include "config.h"
+#include "sldns/sbuffer.h"
+#include <stdarg.h>
+
+sldns_buffer *
+sldns_buffer_new(size_t capacity)
+{
+	sldns_buffer *buffer = (sldns_buffer*)malloc(sizeof(sldns_buffer));
+
+	if (!buffer) {
+		return NULL;
+	}
+	
+	buffer->_data = (uint8_t *) malloc(capacity);
+	if (!buffer->_data) {
+		free(buffer);
+		return NULL;
+	}
+	
+	buffer->_position = 0;
+	buffer->_limit = buffer->_capacity = capacity;
+	buffer->_fixed = 0;
+	buffer->_status_err = 0;
+	
+	sldns_buffer_invariant(buffer);
+	
+	return buffer;
+}
+
+void
+sldns_buffer_new_frm_data(sldns_buffer *buffer, void *data, size_t size)
+{
+	assert(data != NULL);
+
+	buffer->_position = 0; 
+	buffer->_limit = buffer->_capacity = size;
+	buffer->_fixed = 0;
+	buffer->_data = malloc(size);
+	if(!buffer->_data) {
+		buffer->_status_err = 1;
+		return;
+	}
+	memcpy(buffer->_data, data, size);
+	buffer->_status_err = 0;
+	
+	sldns_buffer_invariant(buffer);
+}
+
+void
+sldns_buffer_init_frm_data(sldns_buffer *buffer, void *data, size_t size)
+{
+	memset(buffer, 0, sizeof(*buffer));
+	buffer->_data = data;
+	buffer->_capacity = buffer->_limit = size;
+	buffer->_fixed = 1;
+}
+
+int
+sldns_buffer_set_capacity(sldns_buffer *buffer, size_t capacity)
+{
+	void *data;
+	
+	sldns_buffer_invariant(buffer);
+	assert(buffer->_position <= capacity);
+
+	data = (uint8_t *) realloc(buffer->_data, capacity);
+	if (!data) {
+		buffer->_status_err = 1;
+		return 0;
+	} else {
+		buffer->_data = data;
+		buffer->_limit = buffer->_capacity = capacity;
+		return 1;
+	}
+}
+
+int
+sldns_buffer_reserve(sldns_buffer *buffer, size_t amount)
+{
+	sldns_buffer_invariant(buffer);
+	assert(!buffer->_fixed);
+	if (buffer->_capacity < buffer->_position + amount) {
+		size_t new_capacity = buffer->_capacity * 3 / 2;
+
+		if (new_capacity < buffer->_position + amount) {
+			new_capacity = buffer->_position + amount;
+		}
+		if (!sldns_buffer_set_capacity(buffer, new_capacity)) {
+			buffer->_status_err = 1;
+			return 0;
+		}
+	}
+	buffer->_limit = buffer->_capacity;
+	return 1;
+}
+
+int
+sldns_buffer_printf(sldns_buffer *buffer, const char *format, ...)
+{
+	va_list args;
+	int written = 0;
+	size_t remaining;
+	
+	if (sldns_buffer_status_ok(buffer)) {
+		sldns_buffer_invariant(buffer);
+		assert(buffer->_limit == buffer->_capacity);
+
+		remaining = sldns_buffer_remaining(buffer);
+		va_start(args, format);
+		written = vsnprintf((char *) sldns_buffer_current(buffer), remaining,
+				    format, args);
+		va_end(args);
+		if (written == -1) {
+			buffer->_status_err = 1;
+			return -1;
+		} else if ((size_t) written >= remaining) {
+			if (!sldns_buffer_reserve(buffer, (size_t) written + 1)) {
+				buffer->_status_err = 1;
+				return -1;
+			}
+			va_start(args, format);
+			written = vsnprintf((char *) sldns_buffer_current(buffer),
+			    sldns_buffer_remaining(buffer), format, args);
+			va_end(args);
+			if (written == -1) {
+				buffer->_status_err = 1;
+				return -1;
+			}
+		}
+		buffer->_position += written;
+	}
+	return written;
+}
+
+void
+sldns_buffer_free(sldns_buffer *buffer)
+{
+	if (!buffer) {
+		return;
+	}
+
+	if (!buffer->_fixed)
+		free(buffer->_data);
+
+	free(buffer);
+}
+
+void *
+sldns_buffer_export(sldns_buffer *buffer)
+{
+	buffer->_fixed = 1;
+	return buffer->_data;
+}
+
+void 
+sldns_buffer_copy(sldns_buffer* result, sldns_buffer* from)
+{
+	size_t tocopy = sldns_buffer_limit(from);
+
+	if(tocopy > sldns_buffer_capacity(result))
+		tocopy = sldns_buffer_capacity(result);
+	sldns_buffer_clear(result);
+	sldns_buffer_write(result, sldns_buffer_begin(from), tocopy);
+	sldns_buffer_flip(result);
+}
diff --git a/external/unbound/sldns/sbuffer.h b/external/unbound/sldns/sbuffer.h
new file mode 100644
index 000000000..3ce874fc7
--- /dev/null
+++ b/external/unbound/sldns/sbuffer.h
@@ -0,0 +1,706 @@
+/*
+ * buffer.h -- generic memory buffer.
+ *
+ * Copyright (c) 2005-2008, NLnet Labs. All rights reserved.
+ *
+ * See LICENSE for the license.
+ *
+ *
+ * The buffer module implements a generic buffer.  The API is based on
+ * the java.nio.Buffer interface.
+ */
+
+#ifndef LDNS_SBUFFER_H
+#define LDNS_SBUFFER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef S_SPLINT_S
+#  define INLINE 
+#else
+#  ifdef SWIG
+#    define INLINE static
+#  else
+#    define INLINE static inline
+#  endif
+#endif
+
+/*
+ * Copy data allowing for unaligned accesses in network byte order
+ * (big endian).
+ */
+INLINE uint16_t
+sldns_read_uint16(const void *src)
+{
+#ifdef ALLOW_UNALIGNED_ACCESSES
+        return ntohs(*(const uint16_t *) src);
+#else
+        const uint8_t *p = (const uint8_t *) src;
+        return ((uint16_t) p[0] << 8) | (uint16_t) p[1];
+#endif
+}
+
+INLINE uint32_t
+sldns_read_uint32(const void *src)
+{
+#ifdef ALLOW_UNALIGNED_ACCESSES
+        return ntohl(*(const uint32_t *) src);
+#else
+        const uint8_t *p = (const uint8_t *) src;
+        return (  ((uint32_t) p[0] << 24)
+                | ((uint32_t) p[1] << 16)
+                | ((uint32_t) p[2] << 8)
+                |  (uint32_t) p[3]);
+#endif
+}
+
+/*
+ * Copy data allowing for unaligned accesses in network byte order
+ * (big endian).
+ */
+INLINE void
+sldns_write_uint16(void *dst, uint16_t data)
+{
+#ifdef ALLOW_UNALIGNED_ACCESSES
+        * (uint16_t *) dst = htons(data);
+#else
+        uint8_t *p = (uint8_t *) dst;
+        p[0] = (uint8_t) ((data >> 8) & 0xff);
+        p[1] = (uint8_t) (data & 0xff);
+#endif
+}
+
+INLINE void
+sldns_write_uint32(void *dst, uint32_t data)
+{
+#ifdef ALLOW_UNALIGNED_ACCESSES
+        * (uint32_t *) dst = htonl(data);
+#else
+        uint8_t *p = (uint8_t *) dst;
+        p[0] = (uint8_t) ((data >> 24) & 0xff);
+        p[1] = (uint8_t) ((data >> 16) & 0xff);
+        p[2] = (uint8_t) ((data >> 8) & 0xff);
+        p[3] = (uint8_t) (data & 0xff);
+#endif
+}
+
+
+/**
+ * \file sbuffer.h
+ *
+ * This file contains the definition of sldns_buffer, and functions to manipulate those.
+ */
+
+/** 
+ * implementation of buffers to ease operations
+ *
+ * sldns_buffers can contain arbitrary information, per octet. You can write
+ * to the current end of a buffer, read from the current position, and
+ * access any data within it.
+ */
+struct sldns_buffer
+{
+	/** The current position used for reading/writing */ 
+	size_t   _position;
+
+	/** The read/write limit */
+	size_t   _limit;
+
+	/** The amount of data the buffer can contain */
+	size_t   _capacity;
+
+	/** The data contained in the buffer */
+	uint8_t *_data;
+
+	/** If the buffer is fixed it cannot be resized */
+	unsigned _fixed : 1;
+
+	/** The current state of the buffer. If writing to the buffer fails
+	 * for any reason, this value is changed. This way, you can perform
+	 * multiple writes in sequence and check for success afterwards. */
+	unsigned _status_err : 1;
+};
+typedef struct sldns_buffer sldns_buffer;
+
+#ifdef NDEBUG
+INLINE void
+sldns_buffer_invariant(sldns_buffer *ATTR_UNUSED(buffer))
+{
+}
+#else
+INLINE void
+sldns_buffer_invariant(sldns_buffer *buffer)
+{
+	assert(buffer != NULL);
+	assert(buffer->_position <= buffer->_limit);
+	assert(buffer->_limit <= buffer->_capacity);
+	assert(buffer->_data != NULL);
+}
+#endif
+
+/**
+ * creates a new buffer with the specified capacity.
+ *
+ * \param[in] capacity the size (in bytes) to allocate for the buffer
+ * \return the created buffer
+ */
+sldns_buffer *sldns_buffer_new(size_t capacity);
+
+/**
+ * creates a buffer with the specified data.  The data IS copied
+ * and MEMORY allocations are done.  The buffer is not fixed and can
+ * be resized using buffer_reserve().
+ *
+ * \param[in] buffer pointer to the buffer to put the data in
+ * \param[in] data the data to encapsulate in the buffer
+ * \param[in] size the size of the data
+ */
+void sldns_buffer_new_frm_data(sldns_buffer *buffer, void *data, size_t size);
+
+/**
+ * Setup a buffer with the data pointed to. No data copied, no memory allocs.
+ * The buffer is fixed.
+ * \param[in] buffer pointer to the buffer to put the data in
+ * \param[in] data the data to encapsulate in the buffer
+ * \param[in] size the size of the data
+ */
+void sldns_buffer_init_frm_data(sldns_buffer *buffer, void *data, size_t size);
+
+/**
+ * clears the buffer and make it ready for writing.  The buffer's limit
+ * is set to the capacity and the position is set to 0.
+ * \param[in] buffer the buffer to clear
+ */
+INLINE void sldns_buffer_clear(sldns_buffer *buffer)
+{
+	sldns_buffer_invariant(buffer);
+
+	/* reset status here? */
+
+	buffer->_position = 0;
+	buffer->_limit = buffer->_capacity;
+}
+
+/**
+ * makes the buffer ready for reading the data that has been written to
+ * the buffer.  The buffer's limit is set to the current position and
+ * the position is set to 0.
+ *
+ * \param[in] buffer the buffer to flip
+ * \return void
+ */
+INLINE void sldns_buffer_flip(sldns_buffer *buffer)
+{
+	sldns_buffer_invariant(buffer);
+
+	buffer->_limit = buffer->_position;
+	buffer->_position = 0;
+}
+
+/**
+ * make the buffer ready for re-reading the data.  The buffer's
+ * position is reset to 0.
+ * \param[in] buffer the buffer to rewind
+ */
+INLINE void sldns_buffer_rewind(sldns_buffer *buffer)
+{
+	sldns_buffer_invariant(buffer);
+
+	buffer->_position = 0;
+}
+
+/**
+ * returns the current position in the buffer (as a number of bytes)
+ * \param[in] buffer the buffer
+ * \return the current position
+ */
+INLINE size_t
+sldns_buffer_position(sldns_buffer *buffer)
+{
+	return buffer->_position;
+}
+
+/**
+ * sets the buffer's position to MARK.  The position must be less than
+ * or equal to the buffer's limit.
+ * \param[in] buffer the buffer
+ * \param[in] mark the mark to use
+ */
+INLINE void
+sldns_buffer_set_position(sldns_buffer *buffer, size_t mark)
+{
+	assert(mark <= buffer->_limit);
+	buffer->_position = mark;
+}
+
+/**
+ * changes the buffer's position by COUNT bytes.  The position must not
+ * be moved behind the buffer's limit or before the beginning of the
+ * buffer.
+ * \param[in] buffer the buffer
+ * \param[in] count the count to use
+ */
+INLINE void
+sldns_buffer_skip(sldns_buffer *buffer, ssize_t count)
+{
+	assert(buffer->_position + count <= buffer->_limit);
+	buffer->_position += count;
+}
+
+/**
+ * returns the maximum size of the buffer
+ * \param[in] buffer
+ * \return the size
+ */
+INLINE size_t
+sldns_buffer_limit(sldns_buffer *buffer)
+{
+	return buffer->_limit;
+}
+
+/**
+ * changes the buffer's limit.  If the buffer's position is greater
+ * than the new limit the position is set to the limit.
+ * \param[in] buffer the buffer
+ * \param[in] limit the new limit
+ */
+INLINE void
+sldns_buffer_set_limit(sldns_buffer *buffer, size_t limit)
+{
+	assert(limit <= buffer->_capacity);
+	buffer->_limit = limit;
+	if (buffer->_position > buffer->_limit)
+		buffer->_position = buffer->_limit;
+}
+
+/**
+ * returns the number of bytes the buffer can hold.
+ * \param[in] buffer the buffer
+ * \return the number of bytes
+ */
+INLINE size_t
+sldns_buffer_capacity(sldns_buffer *buffer)
+{
+	return buffer->_capacity;
+}
+
+/**
+ * changes the buffer's capacity.  The data is reallocated so any
+ * pointers to the data may become invalid.  The buffer's limit is set
+ * to the buffer's new capacity.
+ * \param[in] buffer the buffer
+ * \param[in] capacity the capacity to use
+ * \return whether this failed or succeeded
+ */
+int sldns_buffer_set_capacity(sldns_buffer *buffer, size_t capacity);
+
+/**
+ * ensures BUFFER can contain at least AMOUNT more bytes.  The buffer's
+ * capacity is increased if necessary using buffer_set_capacity().
+ *
+ * The buffer's limit is always set to the (possibly increased)
+ * capacity.
+ * \param[in] buffer the buffer
+ * \param[in] amount amount to use
+ * \return whether this failed or succeeded
+ */
+int sldns_buffer_reserve(sldns_buffer *buffer, size_t amount);
+
+/**
+ * returns a pointer to the data at the indicated position.
+ * \param[in] buffer the buffer
+ * \param[in] at position
+ * \return the pointer to the data
+ */
+INLINE uint8_t *
+sldns_buffer_at(const sldns_buffer *buffer, size_t at)
+{
+	assert(at <= buffer->_limit);
+	return buffer->_data + at;
+}
+
+/**
+ * returns a pointer to the beginning of the buffer (the data at
+ * position 0).
+ * \param[in] buffer the buffer
+ * \return the pointer
+ */
+INLINE uint8_t *
+sldns_buffer_begin(const sldns_buffer *buffer)
+{
+	return sldns_buffer_at(buffer, 0);
+}
+
+/**
+ * returns a pointer to the end of the buffer (the data at the buffer's
+ * limit).
+ * \param[in] buffer the buffer
+ * \return the pointer
+ */
+INLINE uint8_t *
+sldns_buffer_end(sldns_buffer *buffer)
+{
+	return sldns_buffer_at(buffer, buffer->_limit);
+}
+
+/**
+ * returns a pointer to the data at the buffer's current position.
+ * \param[in] buffer the buffer
+ * \return the pointer
+ */
+INLINE uint8_t *
+sldns_buffer_current(sldns_buffer *buffer)
+{
+	return sldns_buffer_at(buffer, buffer->_position);
+}
+
+/**
+ * returns the number of bytes remaining between the indicated position and
+ * the limit.
+ * \param[in] buffer the buffer
+ * \param[in] at indicated position
+ * \return number of bytes
+ */
+INLINE size_t
+sldns_buffer_remaining_at(sldns_buffer *buffer, size_t at)
+{
+	sldns_buffer_invariant(buffer);
+	assert(at <= buffer->_limit);
+	return buffer->_limit - at;
+}
+
+/**
+ * returns the number of bytes remaining between the buffer's position and
+ * limit.
+ * \param[in] buffer the buffer
+ * \return the number of bytes
+ */
+INLINE size_t
+sldns_buffer_remaining(sldns_buffer *buffer)
+{
+	return sldns_buffer_remaining_at(buffer, buffer->_position);
+}
+
+/**
+ * checks if the buffer has at least COUNT more bytes available.
+ * Before reading or writing the caller needs to ensure enough space
+ * is available!
+ * \param[in] buffer the buffer
+ * \param[in] at indicated position
+ * \param[in] count how much is available
+ * \return true or false (as int?)
+ */
+INLINE int
+sldns_buffer_available_at(sldns_buffer *buffer, size_t at, size_t count)
+{
+	return count <= sldns_buffer_remaining_at(buffer, at);
+}
+
+/**
+ * checks if the buffer has count bytes available at the current position
+ * \param[in] buffer the buffer
+ * \param[in] count how much is available
+ * \return true or false (as int?)
+ */
+INLINE int
+sldns_buffer_available(sldns_buffer *buffer, size_t count)
+{
+	return sldns_buffer_available_at(buffer, buffer->_position, count);
+}
+
+/**
+ * writes the given data to the buffer at the specified position
+ * \param[in] buffer the buffer
+ * \param[in] at the position (in number of bytes) to write the data at
+ * \param[in] data pointer to the data to write to the buffer
+ * \param[in] count the number of bytes of data to write
+ */
+INLINE void
+sldns_buffer_write_at(sldns_buffer *buffer, size_t at, const void *data, size_t count)
+{
+	assert(sldns_buffer_available_at(buffer, at, count));
+	memcpy(buffer->_data + at, data, count);
+}
+
+/**
+ * writes count bytes of data to the current position of the buffer
+ * \param[in] buffer the buffer
+ * \param[in] data the data to write
+ * \param[in] count the lenght of the data to write
+ */
+INLINE void
+sldns_buffer_write(sldns_buffer *buffer, const void *data, size_t count)
+{
+	sldns_buffer_write_at(buffer, buffer->_position, data, count);
+	buffer->_position += count;
+}
+
+/**
+ * copies the given (null-delimited) string to the specified position at the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at the position in the buffer
+ * \param[in] str the string to write
+ */
+INLINE void
+sldns_buffer_write_string_at(sldns_buffer *buffer, size_t at, const char *str)
+{
+	sldns_buffer_write_at(buffer, at, str, strlen(str));
+}
+
+/**
+ * copies the given (null-delimited) string to the current position at the buffer
+ * \param[in] buffer the buffer
+ * \param[in] str the string to write
+ */
+INLINE void
+sldns_buffer_write_string(sldns_buffer *buffer, const char *str)
+{
+	sldns_buffer_write(buffer, str, strlen(str));
+}
+
+/**
+ * writes the given byte of data at the given position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at the position in the buffer
+ * \param[in] data the 8 bits to write
+ */
+INLINE void
+sldns_buffer_write_u8_at(sldns_buffer *buffer, size_t at, uint8_t data)
+{
+	assert(sldns_buffer_available_at(buffer, at, sizeof(data)));
+	buffer->_data[at] = data;
+}
+
+/**
+ * writes the given byte of data at the current position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] data the 8 bits to write
+ */
+INLINE void
+sldns_buffer_write_u8(sldns_buffer *buffer, uint8_t data)
+{
+	sldns_buffer_write_u8_at(buffer, buffer->_position, data);
+	buffer->_position += sizeof(data);
+}
+
+/**
+ * writes the given 2 byte integer at the given position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at the position in the buffer
+ * \param[in] data the 16 bits to write
+ */
+INLINE void
+sldns_buffer_write_u16_at(sldns_buffer *buffer, size_t at, uint16_t data)
+{
+	assert(sldns_buffer_available_at(buffer, at, sizeof(data)));
+	sldns_write_uint16(buffer->_data + at, data);
+}
+
+/**
+ * writes the given 2 byte integer at the current position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] data the 16 bits to write
+ */
+INLINE void
+sldns_buffer_write_u16(sldns_buffer *buffer, uint16_t data)
+{
+	sldns_buffer_write_u16_at(buffer, buffer->_position, data);
+	buffer->_position += sizeof(data);
+}
+
+/**
+ * writes the given 4 byte integer at the given position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at the position in the buffer
+ * \param[in] data the 32 bits to write
+ */
+INLINE void
+sldns_buffer_write_u32_at(sldns_buffer *buffer, size_t at, uint32_t data)
+{
+	assert(sldns_buffer_available_at(buffer, at, sizeof(data)));
+	sldns_write_uint32(buffer->_data + at, data);
+}
+
+/**
+ * writes the given 4 byte integer at the current position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] data the 32 bits to write
+ */
+INLINE void
+sldns_buffer_write_u32(sldns_buffer *buffer, uint32_t data)
+{
+	sldns_buffer_write_u32_at(buffer, buffer->_position, data);
+	buffer->_position += sizeof(data);
+}
+
+/**
+ * copies count bytes of data at the given position to the given data-array
+ * \param[in] buffer the buffer
+ * \param[in] at the position in the buffer to start
+ * \param[out] data buffer to copy to
+ * \param[in] count the length of the data to copy
+ */
+INLINE void
+sldns_buffer_read_at(sldns_buffer *buffer, size_t at, void *data, size_t count)
+{
+	assert(sldns_buffer_available_at(buffer, at, count));
+	memcpy(data, buffer->_data + at, count);
+}
+
+/**
+ * copies count bytes of data at the current position to the given data-array
+ * \param[in] buffer the buffer
+ * \param[out] data buffer to copy to
+ * \param[in] count the length of the data to copy
+ */
+INLINE void
+sldns_buffer_read(sldns_buffer *buffer, void *data, size_t count)
+{
+	sldns_buffer_read_at(buffer, buffer->_position, data, count);
+	buffer->_position += count;
+}
+
+/**
+ * returns the byte value at the given position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at the position in the buffer
+ * \return 1 byte integer
+ */
+INLINE uint8_t
+sldns_buffer_read_u8_at(sldns_buffer *buffer, size_t at)
+{
+	assert(sldns_buffer_available_at(buffer, at, sizeof(uint8_t)));
+	return buffer->_data[at];
+}
+
+/**
+ * returns the byte value at the current position in the buffer
+ * \param[in] buffer the buffer
+ * \return 1 byte integer
+ */
+INLINE uint8_t
+sldns_buffer_read_u8(sldns_buffer *buffer)
+{
+	uint8_t result = sldns_buffer_read_u8_at(buffer, buffer->_position);
+	buffer->_position += sizeof(uint8_t);
+	return result;
+}
+
+/**
+ * returns the 2-byte integer value at the given position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at position in the buffer
+ * \return 2 byte integer
+ */
+INLINE uint16_t
+sldns_buffer_read_u16_at(sldns_buffer *buffer, size_t at)
+{
+	assert(sldns_buffer_available_at(buffer, at, sizeof(uint16_t)));
+	return sldns_read_uint16(buffer->_data + at);
+}
+
+/**
+ * returns the 2-byte integer value at the current position in the buffer
+ * \param[in] buffer the buffer
+ * \return 2 byte integer
+ */
+INLINE uint16_t
+sldns_buffer_read_u16(sldns_buffer *buffer)
+{
+	uint16_t result = sldns_buffer_read_u16_at(buffer, buffer->_position);
+	buffer->_position += sizeof(uint16_t);
+	return result;
+}
+
+/**
+ * returns the 4-byte integer value at the given position in the buffer
+ * \param[in] buffer the buffer
+ * \param[in] at position in the buffer
+ * \return 4 byte integer
+ */
+INLINE uint32_t
+sldns_buffer_read_u32_at(sldns_buffer *buffer, size_t at)
+{
+	assert(sldns_buffer_available_at(buffer, at, sizeof(uint32_t)));
+	return sldns_read_uint32(buffer->_data + at);
+}
+
+/**
+ * returns the 4-byte integer value at the current position in the buffer
+ * \param[in] buffer the buffer
+ * \return 4 byte integer
+ */
+INLINE uint32_t
+sldns_buffer_read_u32(sldns_buffer *buffer)
+{
+	uint32_t result = sldns_buffer_read_u32_at(buffer, buffer->_position);
+	buffer->_position += sizeof(uint32_t);
+	return result;
+}
+
+/**
+ * returns the status of the buffer
+ * \param[in] buffer
+ * \return the status
+ */
+INLINE int
+sldns_buffer_status(sldns_buffer *buffer)
+{
+	return (int)buffer->_status_err;
+}
+
+/**
+ * returns true if the status of the buffer is LDNS_STATUS_OK, false otherwise
+ * \param[in] buffer the buffer
+ * \return true or false
+ */
+INLINE int
+sldns_buffer_status_ok(sldns_buffer *buffer)
+{
+	if (buffer) {
+		return sldns_buffer_status(buffer) == 0;
+	} else {
+		return 0;
+	}
+}
+
+/**
+ * prints to the buffer, increasing the capacity if required using
+ * buffer_reserve(). The buffer's position is set to the terminating '\\0'
+ * Returns the number of characters written (not including the
+ * terminating '\\0') or -1 on failure.
+ */
+int sldns_buffer_printf(sldns_buffer *buffer, const char *format, ...)
+	ATTR_FORMAT(printf, 2, 3);
+
+/**
+ * frees the buffer.
+ * \param[in] *buffer the buffer to be freed
+ * \return void
+ */
+void sldns_buffer_free(sldns_buffer *buffer);
+
+/**
+ * Makes the buffer fixed and returns a pointer to the data.  The
+ * caller is responsible for free'ing the result.
+ * \param[in] *buffer the buffer to be exported
+ * \return void
+ */
+void *sldns_buffer_export(sldns_buffer *buffer);
+
+/**
+ * Copy contents of the from buffer to the result buffer and then flips 
+ * the result buffer. Data will be silently truncated if the result buffer is
+ * too small.
+ * \param[out] *result resulting buffer which is copied to.
+ * \param[in] *from what to copy to result.
+ */
+void sldns_buffer_copy(sldns_buffer* result, sldns_buffer* from);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_SBUFFER_H */
diff --git a/external/unbound/sldns/str2wire.c b/external/unbound/sldns/str2wire.c
new file mode 100644
index 000000000..8cda8c750
--- /dev/null
+++ b/external/unbound/sldns/str2wire.c
@@ -0,0 +1,2023 @@
+/**
+ * str2wire.c - read txt presentation of RRs
+ *
+ * (c) NLnet Labs, 2005-2006
+ *
+ * See the file LICENSE for the license
+ */
+
+/**
+ * \file
+ *
+ * Parses text to wireformat.
+ */
+#include "config.h"
+#include "sldns/str2wire.h"
+#include "sldns/wire2str.h"
+#include "sldns/sbuffer.h"
+#include "sldns/parse.h"
+#include "sldns/parseutil.h"
+#include <ctype.h>
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+/** return an error */
+#define RET_ERR(e, off) ((int)((e)|((off)<<LDNS_WIREPARSE_SHIFT)))
+/** Move parse error but keep its ID */
+#define RET_ERR_SHIFT(e, move) RET_ERR(LDNS_WIREPARSE_ERROR(e), LDNS_WIREPARSE_OFFSET(e)+(move));
+#define LDNS_IP6ADDRLEN      (128/8)
+
+/*
+ * No special care is taken, all dots are translated into
+ * label separators.
+ * @param rel: true if the domain is not absolute (not terminated in .).
+ * 	The output is then still terminated with a '0' rootlabel.
+ */
+static int sldns_str2wire_dname_buf_rel(const char* str, uint8_t* buf,
+	size_t* olen, int* rel)
+{
+	size_t len;
+
+	const char *s;
+	uint8_t *q, *pq, label_len;
+
+	if(rel) *rel = 0;
+	len = strlen((char*)str);
+	/* octet representation can make strings a lot longer than actual length */
+	if (len > LDNS_MAX_DOMAINLEN * 4) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW, 0);
+	}
+	if (0 == len) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_DOMAINNAME_UNDERFLOW, 0);
+	}
+
+	/* root label */
+	if (1 == len && *str == '.') {
+		if(*olen < 1)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL, 0);
+		buf[0] = 0;
+		*olen = 1;
+		return LDNS_WIREPARSE_ERR_OK;
+	}
+
+	/* get on with the rest */
+
+	/* s is on the current character in the string
+         * pq points to where the labellength is going to go
+         * label_len keeps track of the current label's length
+	 * q builds the dname inside the buf array
+	 */
+	len = 0;
+	if(*olen < 1)
+		return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL, 0);
+	q = buf+1;
+	pq = buf;
+	label_len = 0;
+	for (s = str; *s; s++, q++) {
+		if (q >= buf + *olen)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL, q-buf);
+		if (q > buf + LDNS_MAX_DOMAINLEN)
+			return RET_ERR(LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW, q-buf);
+		switch (*s) {
+		case '.':
+			if (label_len > LDNS_MAX_LABELLEN) {
+				return RET_ERR(LDNS_WIREPARSE_ERR_LABEL_OVERFLOW, q-buf);
+			}
+			if (label_len == 0) {
+				return RET_ERR(LDNS_WIREPARSE_ERR_EMPTY_LABEL, q-buf);
+			}
+			len += label_len + 1;
+			*q = 0;
+			*pq = label_len;
+			label_len = 0;
+			pq = q;
+			break;
+		case '\\':
+			/* octet value or literal char */
+			s += 1;
+			if (!sldns_parse_escape(q, &s)) {
+				*q = 0;
+				return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE, q-buf);
+			}
+			s -= 1;
+			label_len++;
+			break;
+		default:
+			*q = (uint8_t)*s;
+			label_len++;
+		}
+	}
+
+	/* add root label if last char was not '.' */
+	if(label_len != 0) {
+		if(rel) *rel = 1;
+		if (q >= buf + *olen)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL, q-buf);
+		if (q > buf + LDNS_MAX_DOMAINLEN) {
+			return RET_ERR(LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW, q-buf);
+		}
+                if (label_len > LDNS_MAX_LABELLEN) {
+                        return RET_ERR(LDNS_WIREPARSE_ERR_LABEL_OVERFLOW, q-buf);
+                }
+                if (label_len == 0) { /* label_len 0 but not . at end? */
+                        return RET_ERR(LDNS_WIREPARSE_ERR_EMPTY_LABEL, q-buf);
+                }
+		len += label_len + 1;
+		*pq = label_len;
+		*q = 0;
+	}
+	len++;
+	*olen = len;
+
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_dname_buf(const char* str, uint8_t* buf, size_t* len)
+{
+	return sldns_str2wire_dname_buf_rel(str, buf, len, NULL);
+}
+
+int sldns_str2wire_dname_buf_origin(const char* str, uint8_t* buf, size_t* len,
+	uint8_t* origin, size_t origin_len)
+{
+	size_t dlen = *len;
+	int rel = 0;
+	int s = sldns_str2wire_dname_buf_rel(str, buf, &dlen, &rel);
+	if(s) return s;
+
+	if(rel && origin && dlen > 0) {
+		if(dlen + origin_len - 1 > LDNS_MAX_DOMAINLEN)
+			return RET_ERR(LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW,
+				LDNS_MAX_DOMAINLEN);
+		if(dlen + origin_len - 1 > *len)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				*len);
+		memmove(buf+dlen-1, origin, origin_len);
+		*len = dlen + origin_len - 1;
+	} else
+		*len = dlen;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+uint8_t* sldns_str2wire_dname(const char* str, size_t* len)
+{
+	uint8_t dname[LDNS_MAX_DOMAINLEN+1];
+	*len = sizeof(dname);
+	if(sldns_str2wire_dname_buf(str, dname, len) == 0) {
+		uint8_t* r = (uint8_t*)malloc(*len);
+		if(r) return memcpy(r, dname, *len);
+	}
+	*len = 0;
+	return NULL;
+}
+
+/** read owner name */
+static int
+rrinternal_get_owner(sldns_buffer* strbuf, uint8_t* rr, size_t* len,
+	size_t* dname_len, uint8_t* origin, size_t origin_len, uint8_t* prev,
+	size_t prev_len, char* token, size_t token_len)
+{
+	/* split the rr in its parts -1 signals trouble */
+	if(sldns_bget_token(strbuf, token, "\t\n ", token_len) == -1) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX,
+			sldns_buffer_position(strbuf));
+	}
+
+	if(strcmp(token, "@") == 0) {
+		uint8_t* tocopy;
+		if (origin) {
+			*dname_len = origin_len;
+			tocopy = origin;
+		} else if (prev) {
+			*dname_len = prev_len;
+			tocopy = prev;
+		} else {
+			/* default to root */
+			*dname_len = 1;
+			tocopy = (uint8_t*)"\0";
+		}
+		if(*len < *dname_len)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				sldns_buffer_position(strbuf));
+		memmove(rr, tocopy, *dname_len);
+	} else if(strlen(token) == 0) {
+		/* no ownername was given, try prev, if that fails
+		 * origin, else default to root */
+		uint8_t* tocopy;
+		if(prev) {
+			*dname_len = prev_len;
+			tocopy = prev;
+		} else if(origin) {
+			*dname_len = origin_len;
+			tocopy = origin;
+		} else {
+			*dname_len = 1;
+			tocopy = (uint8_t*)"\0";
+		}
+		if(*len < *dname_len)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				sldns_buffer_position(strbuf));
+		memmove(rr, tocopy, *dname_len);
+	} else {
+		size_t dlen = *len;
+		int s = sldns_str2wire_dname_buf_origin(token, rr, &dlen,
+			origin, origin_len);
+		if(s) return RET_ERR_SHIFT(s,
+			sldns_buffer_position(strbuf)-strlen(token));
+		*dname_len = dlen;
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** read ttl */
+static int
+rrinternal_get_ttl(sldns_buffer* strbuf, char* token, size_t token_len,
+	int* not_there, uint32_t* ttl, uint32_t default_ttl)
+{
+	const char* endptr;
+	if(sldns_bget_token(strbuf, token, "\t\n ", token_len) == -1) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_TTL,
+			sldns_buffer_position(strbuf));
+	}
+	*ttl = (uint32_t) sldns_str2period(token, &endptr);
+
+	if (strlen(token) > 0 && !isdigit((unsigned char)token[0])) {
+		*not_there = 1;
+		/* ah, it's not there or something */
+		if (default_ttl == 0) {
+			*ttl = LDNS_DEFAULT_TTL;
+		} else {
+			*ttl = default_ttl;
+		}
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** read class */
+static int
+rrinternal_get_class(sldns_buffer* strbuf, char* token, size_t token_len,
+	int* not_there, uint16_t* cl)
+{
+	/* if 'not_there' then we got token from previous parse routine */
+	if(!*not_there) {
+		/* parse new token for class */
+		if(sldns_bget_token(strbuf, token, "\t\n ", token_len) == -1) {
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_CLASS,
+				sldns_buffer_position(strbuf));
+		}
+	} else *not_there = 0;
+	*cl = sldns_get_rr_class_by_name(token);
+	/* class can be left out too, assume IN, current token must be type */
+	if(*cl == 0 && strcmp(token, "CLASS0") != 0) {
+		*not_there = 1;
+		*cl = LDNS_RR_CLASS_IN;
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** read type */
+static int
+rrinternal_get_type(sldns_buffer* strbuf, char* token, size_t token_len,
+	int* not_there, uint16_t* tp)
+{
+	/* if 'not_there' then we got token from previous parse routine */
+	if(!*not_there) {
+		/* parse new token for type */
+		if(sldns_bget_token(strbuf, token, "\t\n ", token_len) == -1) {
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_TYPE,
+				sldns_buffer_position(strbuf));
+		}
+	}
+	*tp = sldns_get_rr_type_by_name(token);
+	if(*tp == 0 && strcmp(token, "TYPE0") != 0) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_TYPE,
+			sldns_buffer_position(strbuf));
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** put type, class, ttl into rr buffer */
+static int
+rrinternal_write_typeclassttl(sldns_buffer* strbuf, uint8_t* rr, size_t len,
+	size_t dname_len, uint16_t tp, uint16_t cl, uint32_t ttl, int question)
+{
+	if(question) {
+		/* question is : name, type, class */
+		if(dname_len + 4 > len)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				sldns_buffer_position(strbuf));
+		sldns_write_uint16(rr+dname_len, tp);
+		sldns_write_uint16(rr+dname_len+2, cl);
+		return LDNS_WIREPARSE_ERR_OK;
+	}
+
+	/* type(2), class(2), ttl(4), rdatalen(2 (later)) = 10 */
+	if(dname_len + 10 > len)
+		return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+			sldns_buffer_position(strbuf));
+	sldns_write_uint16(rr+dname_len, tp);
+	sldns_write_uint16(rr+dname_len+2, cl);
+	sldns_write_uint32(rr+dname_len+4, ttl);
+	sldns_write_uint16(rr+dname_len+8, 0); /* rdatalen placeholder */
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** find delimiters for type */
+static const char*
+rrinternal_get_delims(sldns_rdf_type rdftype, uint16_t r_cnt, uint16_t r_max)
+{
+	switch(rdftype) {
+	case LDNS_RDF_TYPE_B64        :
+	case LDNS_RDF_TYPE_HEX        : /* These rdf types may con- */
+	case LDNS_RDF_TYPE_LOC        : /* tain whitespace, only if */
+	case LDNS_RDF_TYPE_WKS        : /* it is the last rd field. */
+	case LDNS_RDF_TYPE_IPSECKEY   :
+	case LDNS_RDF_TYPE_NSEC       :	if (r_cnt == r_max - 1) {
+						return "\n";
+					}
+					break;
+	default                       :	break;
+	}
+	return "\n\t "; 
+}
+
+/* Syntactic sugar for sldns_rr_new_frm_str_internal */
+static int
+sldns_rdf_type_maybe_quoted(sldns_rdf_type rdf_type)
+{
+	return  rdf_type == LDNS_RDF_TYPE_STR ||
+		rdf_type == LDNS_RDF_TYPE_LONG_STR;
+}
+
+/** see if rdata is quoted */
+static int
+rrinternal_get_quoted(sldns_buffer* strbuf, const char** delimiters,
+	sldns_rdf_type rdftype)
+{
+	if(sldns_rdf_type_maybe_quoted(rdftype) &&
+		sldns_buffer_remaining(strbuf) > 0) {
+
+		/* skip spaces */
+		while(sldns_buffer_remaining(strbuf) > 0 &&
+			*(sldns_buffer_current(strbuf)) == ' ') {
+			sldns_buffer_skip(strbuf, 1);
+		}
+
+		if(sldns_buffer_remaining(strbuf) > 0 &&
+			*(sldns_buffer_current(strbuf)) == '\"') {
+			*delimiters = "\"\0";
+			sldns_buffer_skip(strbuf, 1);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+/** spool hex data into rdata */
+static int
+rrinternal_spool_hex(char* token, uint8_t* rr, size_t rr_len,
+	size_t rr_cur_len, size_t* cur_hex_data_size, size_t hex_data_size)
+{
+	char* p = token;
+	while(*p) {
+		if(isspace((unsigned char)*p)) {
+			p++;
+			continue;
+		}
+		if(!isxdigit((unsigned char)*p))
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_RDATA,
+				p-token);
+		if(*cur_hex_data_size >= hex_data_size)
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_RDATA,
+				p-token);
+		/* extra robust check */
+		if(rr_cur_len+(*cur_hex_data_size)/2 >= rr_len)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				p-token);
+		/* see if 16s or 1s */
+		if( ((*cur_hex_data_size)&1) == 0) {
+			rr[rr_cur_len+(*cur_hex_data_size)/2] =
+				(uint8_t)sldns_hexdigit_to_int(*p)*16;
+		} else {
+			rr[rr_cur_len+(*cur_hex_data_size)/2] +=
+				(uint8_t)sldns_hexdigit_to_int(*p);
+		}
+		p++;
+		(*cur_hex_data_size)++;
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** read unknown rr type format */
+static int
+rrinternal_parse_unknown(sldns_buffer* strbuf, char* token, size_t token_len,
+        uint8_t* rr, size_t* rr_len, size_t* rr_cur_len, size_t pre_data_pos)
+{
+	const char* delim = "\n\t ";
+	size_t hex_data_size, cur_hex_data_size;
+	/* go back to before \#
+	 * and skip it while setting delimiters better
+	 */
+	sldns_buffer_set_position(strbuf, pre_data_pos);
+	if(sldns_bget_token(strbuf, token, delim, token_len) == -1)
+		return LDNS_WIREPARSE_ERR_GENERAL; /* should not fail */
+	/* read rdata octet length */
+	if(sldns_bget_token(strbuf, token, delim, token_len) == -1) {
+		/* something goes very wrong here */
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_RDATA,
+			sldns_buffer_position(strbuf));
+	}
+	hex_data_size = (size_t)atoi(token);
+	if(hex_data_size > LDNS_MAX_RDFLEN || 
+		*rr_cur_len + hex_data_size > *rr_len) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+			sldns_buffer_position(strbuf));
+	}
+	/* copy hex chars into hex str (2 chars per byte) */
+	hex_data_size *= 2;
+	cur_hex_data_size = 0;
+	while(cur_hex_data_size < hex_data_size) {
+		int status;
+		ssize_t c = sldns_bget_token(strbuf, token, delim, token_len);
+		if((status = rrinternal_spool_hex(token, rr, *rr_len,
+			*rr_cur_len, &cur_hex_data_size, hex_data_size)) != 0)
+			return RET_ERR_SHIFT(status,
+				sldns_buffer_position(strbuf)-strlen(token));
+		if(c == -1) {
+			if(cur_hex_data_size != hex_data_size)
+				return RET_ERR(
+					LDNS_WIREPARSE_ERR_SYNTAX_RDATA,
+					sldns_buffer_position(strbuf));
+			break;
+		}
+	}
+	*rr_cur_len += hex_data_size/2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** parse normal RR rdata element */
+static int
+rrinternal_parse_rdf(sldns_buffer* strbuf, char* token, size_t token_len,
+	uint8_t* rr, size_t rr_len, size_t* rr_cur_len, sldns_rdf_type rdftype,
+	uint16_t rr_type, uint16_t r_cnt, uint16_t r_max, size_t dname_len,
+	uint8_t* origin, size_t origin_len)
+{
+	size_t len;
+	int status;
+
+	switch(rdftype) {
+	case LDNS_RDF_TYPE_DNAME:
+		/* check if the origin should be used or concatenated */
+		if(strcmp(token, "@") == 0) {
+			uint8_t* tocopy;
+			size_t copylen;
+			if(origin) {
+				copylen = origin_len;
+				tocopy = origin;
+			} else if(rr_type == LDNS_RR_TYPE_SOA) {
+				copylen = dname_len;
+				tocopy = rr; /* copy rr owner name */
+			} else {
+				copylen = 1;
+				tocopy = (uint8_t*)"\0";
+			}
+			if((*rr_cur_len) + copylen > rr_len)
+				return RET_ERR(
+					LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+					sldns_buffer_position(strbuf));
+			memmove(rr+*rr_cur_len, tocopy, copylen);
+			(*rr_cur_len) += copylen;
+		} else {
+			size_t dlen = rr_len - (*rr_cur_len);
+			int s = sldns_str2wire_dname_buf_origin(token,
+				rr+*rr_cur_len, &dlen, origin, origin_len);
+			if(s) return RET_ERR_SHIFT(s,
+				sldns_buffer_position(strbuf)-strlen(token));
+			(*rr_cur_len) += dlen;
+		}
+		return LDNS_WIREPARSE_ERR_OK;
+
+	case LDNS_RDF_TYPE_HEX:
+	case LDNS_RDF_TYPE_B64:
+		/* When this is the last rdata field, then the
+		 * rest should be read in (cause then these
+		 * rdf types may contain spaces). */
+		if(r_cnt == r_max - 1) {
+			size_t tlen = strlen(token);
+			(void)sldns_bget_token(strbuf, token+tlen, "\n",
+				token_len - tlen);
+		}
+		break;
+	default:
+		break;
+	}
+
+	len = rr_len - (*rr_cur_len);
+	if((status=sldns_str2wire_rdf_buf(token, rr+(*rr_cur_len), &len,
+		rdftype)) != 0)
+		return RET_ERR_SHIFT(status,
+			sldns_buffer_position(strbuf)-strlen(token));
+	*rr_cur_len += len;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/**
+ * Parse one rdf token.  Takes care of quotes and parenthesis.
+ */
+static int
+sldns_parse_rdf_token(sldns_buffer* strbuf, char* token, size_t token_len,
+	int* quoted, int* parens, size_t* pre_data_pos,
+	const char* delimiters, sldns_rdf_type rdftype, size_t* token_strlen)
+{
+	size_t slen;
+
+	/* skip spaces */
+	while(sldns_buffer_remaining(strbuf) > 0 && !*quoted &&
+		*(sldns_buffer_current(strbuf)) == ' ') {
+		sldns_buffer_skip(strbuf, 1);
+	}
+
+	*pre_data_pos = sldns_buffer_position(strbuf);
+	if(sldns_bget_token_par(strbuf, token, (*quoted)?"\"":delimiters,
+		token_len, parens, (*quoted)?NULL:" \t") == -1) {
+		return 0;
+	}
+	slen = strlen(token);
+	/* check if not quoted yet, and we have encountered quotes */
+	if(!*quoted && sldns_rdf_type_maybe_quoted(rdftype) &&
+		slen >= 2 &&
+		(token[0] == '"' || token[0] == '\'') && 
+		(token[slen-1] == '"' || token[slen-1] == '\'')) {
+		/* move token two smaller (quotes) with endnull */
+		memmove(token, token+1, slen-2);
+		token[slen-2] = 0;
+		slen -= 2;
+		*quoted = 1;
+	} else if(!*quoted && sldns_rdf_type_maybe_quoted(rdftype) &&
+		slen >= 2 &&
+		(token[0] == '"' || token[0] == '\'')) {
+		/* got the start quote (remove it) but read remainder
+		 * of quoted string as well into remainder of token */
+		memmove(token, token+1, slen-1);
+		token[slen-1] = 0;
+		slen -= 1;
+		*quoted = 1;
+		/* rewind buffer over skipped whitespace */
+		while(sldns_buffer_position(strbuf) > 0 &&
+			(sldns_buffer_current(strbuf)[-1] == ' ' ||
+			sldns_buffer_current(strbuf)[-1] == '\t')) {
+			sldns_buffer_skip(strbuf, -1);
+		}
+		if(sldns_bget_token_par(strbuf, token+slen,
+			"\"", token_len-slen,
+			parens, NULL) == -1) {
+			return 0;
+		}
+		slen = strlen(token);
+	}
+	*token_strlen = slen;
+	return 1;
+}
+
+/** Add space and one more rdf token onto the existing token string. */
+static int
+sldns_affix_token(sldns_buffer* strbuf, char* token, size_t* token_len,
+	int* quoted, int* parens, size_t* pre_data_pos,
+	const char* delimiters, sldns_rdf_type rdftype, size_t* token_strlen)
+{
+	size_t addlen = *token_len - *token_strlen;
+	size_t addstrlen = 0;
+
+	/* add space */
+	if(addlen < 1) return 0;
+	token[*token_strlen] = ' ';
+	token[++(*token_strlen)] = 0;
+
+	/* read another token */
+	addlen = *token_len - *token_strlen;
+	if(!sldns_parse_rdf_token(strbuf, token+*token_strlen, addlen, quoted,
+		parens, pre_data_pos, delimiters, rdftype, &addstrlen))
+		return 0;
+	(*token_strlen) += addstrlen;
+	return 1;
+}
+
+/** parse rdata from string into rr buffer(-remainder after dname). */
+static int
+rrinternal_parse_rdata(sldns_buffer* strbuf, char* token, size_t token_len,
+	uint8_t* rr, size_t* rr_len, size_t dname_len, uint16_t rr_type,
+	uint8_t* origin, size_t origin_len)
+{
+	const sldns_rr_descriptor *desc = sldns_rr_descript((uint16_t)rr_type);
+	uint16_t r_cnt, r_min, r_max;
+	size_t rr_cur_len = dname_len + 10, pre_data_pos, token_strlen;
+	int was_unknown_rr_format = 0, parens = 0, status, quoted;
+	const char* delimiters;
+	sldns_rdf_type rdftype;
+	/* a desc is always returned */
+	if(!desc) return LDNS_WIREPARSE_ERR_GENERAL;
+	r_max = sldns_rr_descriptor_maximum(desc);
+	r_min = sldns_rr_descriptor_minimum(desc);
+	/* robust check */
+	if(rr_cur_len > *rr_len)
+		return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+			sldns_buffer_position(strbuf));
+
+	/* because number of fields can be variable, we can't rely on
+	 * _maximum() only */
+	for(r_cnt=0; r_cnt < r_max; r_cnt++) {
+		rdftype = sldns_rr_descriptor_field_type(desc, r_cnt);
+		delimiters = rrinternal_get_delims(rdftype, r_cnt, r_max);
+		quoted = rrinternal_get_quoted(strbuf, &delimiters, rdftype);
+
+		if(!sldns_parse_rdf_token(strbuf, token, token_len, &quoted,
+			&parens, &pre_data_pos, delimiters, rdftype,
+			&token_strlen))
+			break;
+
+		/* rfc3597 specifies that any type can be represented
+		 * with \# method, which can contain spaces...
+		 * it does specify size though... */
+
+		/* unknown RR data */
+		if(token_strlen>=2 && strncmp(token, "\\#", 2) == 0 &&
+			!quoted && (token_strlen == 2 || token[2]==' ')) {
+			was_unknown_rr_format = 1;
+			if((status=rrinternal_parse_unknown(strbuf, token,
+				token_len, rr, rr_len, &rr_cur_len, 
+				pre_data_pos)) != 0)
+				return status;
+		} else if(token_strlen > 0 || quoted) {
+			if(rdftype == LDNS_RDF_TYPE_HIP) {
+				/* affix the HIT and PK fields, with a space */
+				if(!sldns_affix_token(strbuf, token,
+					&token_len, &quoted, &parens,
+					&pre_data_pos, delimiters,
+					rdftype, &token_strlen))
+					break;
+				if(!sldns_affix_token(strbuf, token,
+					&token_len, &quoted, &parens,
+					&pre_data_pos, delimiters,
+					rdftype, &token_strlen))
+					break;
+			}
+
+			/* normal RR */
+			if((status=rrinternal_parse_rdf(strbuf, token,
+				token_len, rr, *rr_len, &rr_cur_len, rdftype,
+				rr_type, r_cnt, r_max, dname_len, origin,
+				origin_len)) != 0) {
+				return status;
+			}
+		}
+	}
+	if(!was_unknown_rr_format && r_cnt+1 < r_min) {
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_MISSING_VALUE,
+			sldns_buffer_position(strbuf));
+	}
+	while(parens != 0) {
+		/* read remainder, must be "" */
+		if(sldns_bget_token_par(strbuf, token, "\n", token_len,
+			&parens, " \t") == -1) {
+			if(parens != 0)
+				return RET_ERR(LDNS_WIREPARSE_ERR_PARENTHESIS,
+					sldns_buffer_position(strbuf));
+			break;
+		}
+		if(strcmp(token, "") != 0)
+			return RET_ERR(LDNS_WIREPARSE_ERR_PARENTHESIS,
+				sldns_buffer_position(strbuf));
+	}
+	/* write rdata length */
+	sldns_write_uint16(rr+dname_len+8, rr_cur_len-dname_len-10);
+	*rr_len = rr_cur_len;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/*
+ * trailing spaces are allowed
+ * leading spaces are not allowed
+ * allow ttl to be optional
+ * class is optional too
+ * if ttl is missing, and default_ttl is 0, use DEF_TTL
+ * allow ttl to be written as 1d3h
+ * So the RR should look like. e.g.
+ * miek.nl. 3600 IN MX 10 elektron.atoom.net
+ * or
+ * miek.nl. 1h IN MX 10 elektron.atoom.net
+ * or
+ * miek.nl. IN MX 10 elektron.atoom.net
+ */
+static int
+sldns_str2wire_rr_buf_internal(const char* str, uint8_t* rr, size_t* len,
+	size_t* dname_len, uint32_t default_ttl, uint8_t* origin,
+	size_t origin_len, uint8_t* prev, size_t prev_len, int question)
+{
+	int status;
+	int not_there = 0;
+	char token[LDNS_MAX_RDFLEN+1];
+	uint32_t ttl = 0;
+	uint16_t tp = 0, cl = 0;
+	size_t ddlen = 0;
+
+	/* string in buffer */
+	sldns_buffer strbuf;
+	sldns_buffer_init_frm_data(&strbuf, (uint8_t*)str, strlen(str));
+	if(!dname_len) dname_len = &ddlen;
+
+	/* parse the owner */
+	if((status=rrinternal_get_owner(&strbuf, rr, len, dname_len, origin,
+		origin_len, prev, prev_len, token, sizeof(token))) != 0)
+		return status;
+
+	/* parse the [ttl] [class] <type> */
+	if((status=rrinternal_get_ttl(&strbuf, token, sizeof(token),
+		&not_there, &ttl, default_ttl)) != 0)
+		return status;
+	if((status=rrinternal_get_class(&strbuf, token, sizeof(token),
+		&not_there, &cl)) != 0)
+		return status;
+	if((status=rrinternal_get_type(&strbuf, token, sizeof(token),
+		&not_there, &tp)) != 0)
+		return status;
+	/* put ttl, class, type into the rr result */
+	if((status=rrinternal_write_typeclassttl(&strbuf, rr, *len, *dname_len, tp, cl,
+		ttl, question)) != 0)
+		return status;
+	/* for a question-RR we are done, no rdata */
+	if(question) {
+		*len = *dname_len + 4;
+		return LDNS_WIREPARSE_ERR_OK;
+	}
+
+	/* rdata */
+	if((status=rrinternal_parse_rdata(&strbuf, token, sizeof(token),
+		rr, len, *dname_len, tp, origin, origin_len)) != 0)
+		return status;
+
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_rr_buf(const char* str, uint8_t* rr, size_t* len,
+	size_t* dname_len, uint32_t default_ttl, uint8_t* origin,
+	size_t origin_len, uint8_t* prev, size_t prev_len)
+{
+	return sldns_str2wire_rr_buf_internal(str, rr, len, dname_len,
+		default_ttl, origin, origin_len, prev, prev_len, 0);
+}
+
+int sldns_str2wire_rr_question_buf(const char* str, uint8_t* rr, size_t* len,
+	size_t* dname_len, uint8_t* origin, size_t origin_len, uint8_t* prev,
+	size_t prev_len)
+{
+	return sldns_str2wire_rr_buf_internal(str, rr, len, dname_len,
+		0, origin, origin_len, prev, prev_len, 1);
+}
+
+uint16_t sldns_wirerr_get_type(uint8_t* rr, size_t len, size_t dname_len)
+{
+	if(len < dname_len+2)
+		return 0;
+	return sldns_read_uint16(rr+dname_len);
+}
+
+uint16_t sldns_wirerr_get_class(uint8_t* rr, size_t len, size_t dname_len)
+{
+	if(len < dname_len+4)
+		return 0;
+	return sldns_read_uint16(rr+dname_len+2);
+}
+
+uint32_t sldns_wirerr_get_ttl(uint8_t* rr, size_t len, size_t dname_len)
+{
+	if(len < dname_len+8)
+		return 0;
+	return sldns_read_uint32(rr+dname_len+4);
+}
+
+uint16_t sldns_wirerr_get_rdatalen(uint8_t* rr, size_t len, size_t dname_len)
+{
+	if(len < dname_len+10)
+		return 0;
+	return sldns_read_uint16(rr+dname_len+8);
+}
+
+uint8_t* sldns_wirerr_get_rdata(uint8_t* rr, size_t len, size_t dname_len)
+{
+	if(len < dname_len+10)
+		return NULL;
+	return rr+dname_len+10;
+}
+
+uint8_t* sldns_wirerr_get_rdatawl(uint8_t* rr, size_t len, size_t dname_len)
+{
+	if(len < dname_len+10)
+		return NULL;
+	return rr+dname_len+8;
+}
+
+const char* sldns_get_errorstr_parse(int e)
+{
+	sldns_lookup_table *lt;
+	lt = sldns_lookup_by_id(sldns_wireparse_errors, LDNS_WIREPARSE_ERROR(e));
+	return lt?lt->name:"unknown error";
+}
+
+/* Strip whitespace from the start and the end of <line>.  */
+static char *
+sldns_strip_ws(char *line)
+{
+        char *s = line, *e;
+
+        for (s = line; *s && isspace((unsigned char)*s); s++)
+                ;
+        for (e = strchr(s, 0); e > s+2 && isspace((unsigned char)e[-1]) && e[-2] != '\\'; e--)
+                ;
+        *e = 0;
+        return s;
+}
+
+int sldns_fp2wire_rr_buf(FILE* in, uint8_t* rr, size_t* len, size_t* dname_len,
+	struct sldns_file_parse_state* parse_state)
+{
+	char line[LDNS_RR_BUF_SIZE+1];
+	ssize_t size;
+
+	/* read an entire line in from the file */
+	if((size = sldns_fget_token_l(in, line, LDNS_PARSE_SKIP_SPACE,
+		LDNS_RR_BUF_SIZE, parse_state?&parse_state->lineno:NULL))
+		== -1) {
+		/* if last line was empty, we are now at feof, which is not
+		 * always a parse error (happens when for instance last line
+		 * was a comment)
+		 */
+		return LDNS_WIREPARSE_ERR_SYNTAX;
+	}
+
+	/* we can have the situation, where we've read ok, but still got
+	 * no bytes to play with, in this case size is 0 */
+	if(size == 0) {
+		*len = 0;
+		*dname_len = 0;
+		return LDNS_WIREPARSE_ERR_OK;
+	}
+
+	if(strncmp(line, "$ORIGIN", 7) == 0 && isspace((unsigned char)line[7])) {
+		int s;
+		*len = 0;
+		*dname_len = 0;
+		if(!parse_state) return LDNS_WIREPARSE_ERR_OK;
+		parse_state->origin_len = sizeof(parse_state->origin);
+		s = sldns_str2wire_dname_buf(sldns_strip_ws(line+8),
+			parse_state->origin, &parse_state->origin_len);
+		if(s) parse_state->origin_len = 0;
+		return s;
+	} else if(strncmp(line, "$TTL", 4) == 0 && isspace((unsigned char)line[4])) {
+		const char* end = NULL;
+		*len = 0;
+		*dname_len = 0;
+		if(!parse_state) return LDNS_WIREPARSE_ERR_OK;
+		parse_state->default_ttl = sldns_str2period(
+			sldns_strip_ws(line+5), &end);
+	} else if (strncmp(line, "$INCLUDE", 8) == 0) {
+		*len = 0;
+		*dname_len = 0;
+		return LDNS_WIREPARSE_ERR_INCLUDE;
+	} else {
+		return sldns_str2wire_rr_buf(line, rr, len, dname_len,
+			parse_state?parse_state->default_ttl:0,
+			(parse_state&&parse_state->origin_len)?
+				parse_state->origin:NULL,
+			parse_state->origin_len,
+			(parse_state&&parse_state->prev_rr_len)?
+				parse_state->prev_rr:NULL,
+			parse_state->prev_rr_len);
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_rdf_buf(const char* str, uint8_t* rd, size_t* len,
+	sldns_rdf_type rdftype)
+{
+	switch (rdftype) {
+	case LDNS_RDF_TYPE_DNAME:
+		return sldns_str2wire_dname_buf(str, rd, len);
+	case LDNS_RDF_TYPE_INT8:
+		return sldns_str2wire_int8_buf(str, rd, len);
+	case LDNS_RDF_TYPE_INT16:
+		return sldns_str2wire_int16_buf(str, rd, len);
+	case LDNS_RDF_TYPE_INT32:
+		return sldns_str2wire_int32_buf(str, rd, len);
+	case LDNS_RDF_TYPE_A:
+		return sldns_str2wire_a_buf(str, rd, len);
+	case LDNS_RDF_TYPE_AAAA:
+		return sldns_str2wire_aaaa_buf(str, rd, len);
+	case LDNS_RDF_TYPE_STR:
+		return sldns_str2wire_str_buf(str, rd, len);
+	case LDNS_RDF_TYPE_APL:
+		return sldns_str2wire_apl_buf(str, rd, len);
+	case LDNS_RDF_TYPE_B64:
+		return sldns_str2wire_b64_buf(str, rd, len);
+	case LDNS_RDF_TYPE_B32_EXT:
+		return sldns_str2wire_b32_ext_buf(str, rd, len);
+	case LDNS_RDF_TYPE_HEX:
+		return sldns_str2wire_hex_buf(str, rd, len);
+	case LDNS_RDF_TYPE_NSEC:
+		return sldns_str2wire_nsec_buf(str, rd, len);
+	case LDNS_RDF_TYPE_TYPE:
+		return sldns_str2wire_type_buf(str, rd, len);
+	case LDNS_RDF_TYPE_CLASS:
+		return sldns_str2wire_class_buf(str, rd, len);
+	case LDNS_RDF_TYPE_CERT_ALG:
+		return sldns_str2wire_cert_alg_buf(str, rd, len);
+	case LDNS_RDF_TYPE_ALG:
+		return sldns_str2wire_alg_buf(str, rd, len);
+	case LDNS_RDF_TYPE_TIME:
+		return sldns_str2wire_time_buf(str, rd, len);
+	case LDNS_RDF_TYPE_PERIOD:
+		return sldns_str2wire_period_buf(str, rd, len);
+	case LDNS_RDF_TYPE_LOC:
+		return sldns_str2wire_loc_buf(str, rd, len);
+	case LDNS_RDF_TYPE_WKS:
+		return sldns_str2wire_wks_buf(str, rd, len);
+	case LDNS_RDF_TYPE_NSAP:
+		return sldns_str2wire_nsap_buf(str, rd, len);
+	case LDNS_RDF_TYPE_ATMA:
+		return sldns_str2wire_atma_buf(str, rd, len);
+	case LDNS_RDF_TYPE_IPSECKEY:
+		return sldns_str2wire_ipseckey_buf(str, rd, len);
+	case LDNS_RDF_TYPE_NSEC3_SALT:
+		return sldns_str2wire_nsec3_salt_buf(str, rd, len);
+	case LDNS_RDF_TYPE_NSEC3_NEXT_OWNER:
+		return sldns_str2wire_b32_ext_buf(str, rd, len);
+	case LDNS_RDF_TYPE_ILNP64:
+		return sldns_str2wire_ilnp64_buf(str, rd, len);
+	case LDNS_RDF_TYPE_EUI48:
+		return sldns_str2wire_eui48_buf(str, rd, len);
+	case LDNS_RDF_TYPE_EUI64:
+		return sldns_str2wire_eui64_buf(str, rd, len);
+	case LDNS_RDF_TYPE_TAG:
+		return sldns_str2wire_tag_buf(str, rd, len);
+	case LDNS_RDF_TYPE_LONG_STR:
+		return sldns_str2wire_long_str_buf(str, rd, len);
+	case LDNS_RDF_TYPE_HIP:
+		return sldns_str2wire_hip_buf(str, rd, len);
+	case LDNS_RDF_TYPE_INT16_DATA:
+		return sldns_str2wire_int16_data_buf(str, rd, len);
+	case LDNS_RDF_TYPE_UNKNOWN:
+	case LDNS_RDF_TYPE_SERVICE:
+		return LDNS_WIREPARSE_ERR_NOT_IMPL;
+	case LDNS_RDF_TYPE_NONE:
+	default:
+		break;
+	}
+	return LDNS_WIREPARSE_ERR_GENERAL;
+}
+
+int sldns_str2wire_int8_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	char* end;
+	uint8_t r = (uint8_t)strtol((char*)str, &end, 10);
+	if(*end != 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_INT, end-(char*)str);
+	if(*len < 1)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	rd[0] = r;
+	*len = 1;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_int16_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	char* end;
+	uint16_t r = (uint16_t)strtol((char*)str, &end, 10);
+	if(*end != 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_INT, end-(char*)str);
+	if(*len < 2)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	sldns_write_uint16(rd, r);
+	*len = 2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_int32_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	char* end;
+	uint32_t r;
+	errno = 0; /* must set to zero before call,
+			note race condition on errno */
+	if(*str == '-')
+		r = (uint32_t)strtol((char*)str, &end, 10);
+	else	r = (uint32_t)strtoul((char*)str, &end, 10);
+	if(*end != 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_INT, end-(char*)str);
+	if(errno == ERANGE)
+		return LDNS_WIREPARSE_ERR_SYNTAX_INTEGER_OVERFLOW;
+	if(*len < 4)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	sldns_write_uint32(rd, r);
+	*len = 4;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_a_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	struct in_addr address;
+	if(inet_pton(AF_INET, (char*)str, &address) != 1)
+		return LDNS_WIREPARSE_ERR_SYNTAX_IP4;
+	if(*len < sizeof(address))
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	memmove(rd, &address, sizeof(address));
+	*len = sizeof(address);
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_aaaa_buf(const char* str, uint8_t* rd, size_t* len)
+{
+#ifdef AF_INET6
+	uint8_t address[LDNS_IP6ADDRLEN + 1];
+	if(inet_pton(AF_INET6, (char*)str, address) != 1)
+		return LDNS_WIREPARSE_ERR_SYNTAX_IP6;
+	if(*len < LDNS_IP6ADDRLEN)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	memmove(rd, address, LDNS_IP6ADDRLEN);
+	*len = LDNS_IP6ADDRLEN;
+	return LDNS_WIREPARSE_ERR_OK;
+#else
+	return LDNS_WIREPARSE_ERR_NOT_IMPL;
+#endif
+}
+
+int sldns_str2wire_str_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	uint8_t ch = 0;
+	size_t sl = 0;
+	const char* s = str;
+	/* skip length byte */
+	if(*len < 1)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+
+	/* read characters */
+	while(sldns_parse_char(&ch, &s)) {
+		if(sl >= 255)
+			return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR, s-str);
+		if(*len < sl+1)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				s-str);
+		rd[++sl] = ch;
+	}
+	if(!s)
+		return LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE;
+	rd[0] = (uint8_t)sl;
+	*len = sl+1;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_apl_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	const char *my_str = str;
+
+	char my_ip_str[64];
+	size_t ip_str_len;
+
+	uint16_t family;
+	int negation;
+	size_t adflength = 0;
+	uint8_t data[16+4];
+	uint8_t prefix;
+	size_t i;
+
+	if(strlen(my_str) == 0) {
+		/* empty APL element, no data, no string */
+		*len = 0;
+		return LDNS_WIREPARSE_ERR_OK;
+	}
+
+	/* [!]afi:address/prefix */
+	if (strlen(my_str) < 2
+			|| strchr(my_str, ':') == NULL
+			|| strchr(my_str, '/') == NULL
+			|| strchr(my_str, ':') > strchr(my_str, '/')) {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	if (my_str[0] == '!') {
+		negation = 1;
+		my_str += 1;
+	} else {
+		negation = 0;
+	}
+
+	family = (uint16_t) atoi(my_str);
+
+	my_str = strchr(my_str, ':') + 1;
+
+	/* need ip addr and only ip addr for inet_pton */
+	ip_str_len = (size_t) (strchr(my_str, '/') - my_str);
+	if(ip_str_len+1 > sizeof(my_ip_str))
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	(void)strlcpy(my_ip_str, my_str, sizeof(my_ip_str));
+	my_ip_str[ip_str_len] = 0;
+
+	if (family == 1) {
+		/* ipv4 */
+		if(inet_pton(AF_INET, my_ip_str, data+4) == 0)
+			return LDNS_WIREPARSE_ERR_INVALID_STR;
+		for (i = 0; i < 4; i++) {
+			if (data[i+4] != 0) {
+				adflength = i + 1;
+			}
+		}
+	} else if (family == 2) {
+		/* ipv6 */
+		if (inet_pton(AF_INET6, my_ip_str, data+4) == 0)
+			return LDNS_WIREPARSE_ERR_INVALID_STR;
+		for (i = 0; i < 16; i++) {
+			if (data[i+4] != 0) {
+				adflength = i + 1;
+			}
+		}
+	} else {
+		/* unknown family */
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	my_str = strchr(my_str, '/') + 1;
+	prefix = (uint8_t) atoi(my_str);
+
+	sldns_write_uint16(data, family);
+	data[2] = prefix;
+	data[3] = (uint8_t)adflength;
+	if (negation) {
+		/* set bit 1 of byte 3 */
+		data[3] = data[3] | 0x80;
+	}
+
+	if(*len < 4+adflength)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	memmove(rd, data, 4+adflength);
+	*len = 4+adflength;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_b64_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	size_t sz = sldns_b64_pton_calculate_size(strlen(str));
+	int n;
+	if(*len < sz)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	n = sldns_b64_pton(str, rd, *len);
+	if(n < 0)
+		return LDNS_WIREPARSE_ERR_SYNTAX_B64;
+	*len = (size_t)n;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_b32_ext_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	size_t slen = strlen(str);
+	size_t sz = sldns_b32_pton_calculate_size(slen);
+	int n;
+	if(*len < 1+sz)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	rd[0] = (uint8_t)sz;
+	n = sldns_b32_pton_extended_hex(str, slen, rd+1, *len-1);
+	if(n < 0)
+		return LDNS_WIREPARSE_ERR_SYNTAX_B32_EXT;
+	*len = (size_t)n+1;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_hex_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	const char* s = str;
+	size_t dlen = 0; /* number of hexdigits parsed */
+	while(*s) {
+		if(isspace((unsigned char)*s)) {
+			s++;
+			continue;
+		}
+		if(!isxdigit((unsigned char)*s))
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, s-str);
+		if(*len < dlen/2 + 1)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				s-str);
+		if((dlen&1)==0)
+			rd[dlen/2] = (uint8_t)sldns_hexdigit_to_int(*s++) * 16;
+		else	rd[dlen/2] += (uint8_t)sldns_hexdigit_to_int(*s++);
+		dlen++;
+	}
+	if((dlen&1)!=0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, s-str);
+	*len = dlen/2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_nsec_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	const char *delim = "\n\t ";
+	char token[64]; /* for a type name */
+	size_t type_count = 0;
+	int block;
+	size_t used = 0;
+	uint16_t maxtype = 0;
+	uint8_t typebits[8192]; /* 65536 bits */
+	uint8_t window_in_use[256];
+
+	/* string in buffer */
+	sldns_buffer strbuf;
+	sldns_buffer_init_frm_data(&strbuf, (uint8_t*)str, strlen(str));
+
+	/* parse the types */
+	memset(typebits, 0, sizeof(typebits));
+	memset(window_in_use, 0, sizeof(window_in_use));
+	while(sldns_buffer_remaining(&strbuf) > 0 &&
+		sldns_bget_token(&strbuf, token, delim, sizeof(token)) != -1) {
+		uint16_t t = sldns_get_rr_type_by_name(token);
+		if(token[0] == 0)
+			continue;
+		if(t == 0 && strcmp(token, "TYPE0") != 0)
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_TYPE,
+				sldns_buffer_position(&strbuf));
+		typebits[t/8] |= (0x80>>(t%8));
+		window_in_use[t/256] = 1;
+		type_count++;
+		if(t > maxtype) maxtype = t;
+	}
+
+	/* empty NSEC bitmap */
+	if(type_count == 0) {
+		*len = 0;
+		return LDNS_WIREPARSE_ERR_OK;
+	}
+
+	/* encode windows {u8 windowblock, u8 bitmaplength, 0-32u8 bitmap},
+	 * block is 0-255 upper octet of types, length if 0-32. */
+	for(block = 0; block <= (int)maxtype/256; block++) {
+		int i, blocklen = 0;
+		if(!window_in_use[block])
+			continue;
+		for(i=0; i<32; i++) {
+			if(typebits[block*32+i] != 0)
+				blocklen = i+1;
+		}
+		if(blocklen == 0)
+			continue; /* empty window should have been !in_use */
+		if(used+blocklen+2 > *len)
+			return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+		rd[used+0] = (uint8_t)block;
+		rd[used+1] = (uint8_t)blocklen;
+		for(i=0; i<blocklen; i++) {
+			rd[used+2+i] = typebits[block*32+i];
+		}
+		used += blocklen+2;
+	}
+	*len = used;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_type_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	uint16_t t = sldns_get_rr_type_by_name(str);
+	if(t == 0 && strcmp(str, "TYPE0") != 0)
+		return LDNS_WIREPARSE_ERR_SYNTAX_TYPE;
+	if(*len < 2)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	sldns_write_uint16(rd, t);
+	*len = 2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_class_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	uint16_t c = sldns_get_rr_class_by_name(str);
+	if(c == 0 && strcmp(str, "CLASS0") != 0)
+		return LDNS_WIREPARSE_ERR_SYNTAX_CLASS;
+	if(*len < 2)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	sldns_write_uint16(rd, c);
+	*len = 2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/* An certificate alg field can either be specified as a 8 bits number
+ * or by its symbolic name. Handle both */
+int sldns_str2wire_cert_alg_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	sldns_lookup_table *lt = sldns_lookup_by_name(sldns_cert_algorithms,
+		str);
+	if(*len < 2)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	if(lt) {
+		sldns_write_uint16(rd, (uint16_t)lt->id);
+	} else {
+		int s = sldns_str2wire_int16_buf(str, rd, len);
+		if(s) return s;
+		if(sldns_read_uint16(rd) == 0)
+			return LDNS_WIREPARSE_ERR_CERT_BAD_ALGORITHM;
+	}
+	*len = 2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/* An alg field can either be specified as a 8 bits number
+ * or by its symbolic name. Handle both */
+int sldns_str2wire_alg_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	sldns_lookup_table *lt = sldns_lookup_by_name(sldns_algorithms, str);
+	if(*len < 1)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	if(lt) {
+		rd[0] = (uint8_t)lt->id;
+		*len = 1;
+	} else {
+		/* try as-is (a number) */
+		return sldns_str2wire_int8_buf(str, rd, len);
+	}
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_time_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	/* convert a time YYYYDDMMHHMMSS to wireformat */
+	struct tm tm;
+	if(*len < 4)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+
+	/* Try to scan the time... */
+	memset(&tm, 0, sizeof(tm));
+	if (strlen(str) == 14 && sscanf(str, "%4d%2d%2d%2d%2d%2d",
+		&tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_hour,
+		&tm.tm_min, &tm.tm_sec) == 6) {
+	   	tm.tm_year -= 1900;
+	   	tm.tm_mon--;
+	   	/* Check values */
+		if (tm.tm_year < 70)
+			return LDNS_WIREPARSE_ERR_SYNTAX_TIME;
+		if (tm.tm_mon < 0 || tm.tm_mon > 11)
+			return LDNS_WIREPARSE_ERR_SYNTAX_TIME;
+		if (tm.tm_mday < 1 || tm.tm_mday > 31)
+			return LDNS_WIREPARSE_ERR_SYNTAX_TIME;
+		if (tm.tm_hour < 0 || tm.tm_hour > 23)
+			return LDNS_WIREPARSE_ERR_SYNTAX_TIME;
+		if (tm.tm_min < 0 || tm.tm_min > 59)
+			return LDNS_WIREPARSE_ERR_SYNTAX_TIME;
+		if (tm.tm_sec < 0 || tm.tm_sec > 59)
+			return LDNS_WIREPARSE_ERR_SYNTAX_TIME;
+
+		sldns_write_uint32(rd, sldns_mktime_from_utc(&tm));
+	} else {
+		/* handle it as 32 bits timestamp */
+		char *end;
+		uint32_t l = (uint32_t)strtol((char*)str, &end, 10);
+		if(*end != 0)
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_TIME,
+				end-(char*)str);
+		sldns_write_uint32(rd, l);
+	}
+	*len = 4;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_period_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	const char* end;
+	uint32_t p = sldns_str2period(str, &end);
+	if(*end != 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_PERIOD, end-str);
+	if(*len < 4)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	sldns_write_uint32(rd, p);
+	*len = 4;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+/** read "<digits>[.<digits>][mM]" into mantissa exponent format for LOC type */
+static int
+loc_parse_cm(char* my_str, char** endstr, uint8_t* m, uint8_t* e)
+{
+	uint32_t meters = 0, cm = 0, val;
+	while (isblank((unsigned char)*my_str)) {
+		my_str++;
+	}
+	meters = (uint32_t)strtol(my_str, &my_str, 10);
+	if (*my_str == '.') {
+		my_str++;
+		cm = (uint32_t)strtol(my_str, &my_str, 10);
+	}
+	if (meters >= 1) {
+		*e = 2;
+		val = meters;
+	} else	{
+		*e = 0;
+		val = cm;
+	}
+	while(val >= 10) {
+		(*e)++;
+		val /= 10;
+	}
+	*m = (uint8_t)val;
+
+	if (*e > 9)
+		return 0;
+	if (*my_str == 'm' || *my_str == 'M') {
+		my_str++;
+	}
+	*endstr = my_str;
+	return 1;
+}
+
+int sldns_str2wire_loc_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	uint32_t latitude = 0;
+	uint32_t longitude = 0;
+	uint32_t altitude = 0;
+
+	uint32_t equator = (uint32_t)1<<31; /* 2**31 */
+
+	/* only support version 0 */
+	uint32_t h = 0;
+	uint32_t m = 0;
+	uint8_t size_b = 1, size_e = 2;
+	uint8_t horiz_pre_b = 1, horiz_pre_e = 6;
+	uint8_t vert_pre_b = 1, vert_pre_e = 3;
+
+	double s = 0.0;
+	int northerness;
+	int easterness;
+
+	char *my_str = (char *) str;
+
+	if (isdigit((unsigned char) *my_str)) {
+		h = (uint32_t) strtol(my_str, &my_str, 10);
+	} else {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	while (isblank((unsigned char) *my_str)) {
+		my_str++;
+	}
+
+	if (isdigit((unsigned char) *my_str)) {
+		m = (uint32_t) strtol(my_str, &my_str, 10);
+	} else if (*my_str == 'N' || *my_str == 'S') {
+		goto north;
+	} else {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	while (isblank((unsigned char) *my_str)) {
+		my_str++;
+	}
+
+	if (isdigit((unsigned char) *my_str)) {
+		s = strtod(my_str, &my_str);
+	}
+
+	/* skip blanks before norterness */
+	while (isblank((unsigned char) *my_str)) {
+		my_str++;
+	}
+
+north:
+	if (*my_str == 'N') {
+		northerness = 1;
+	} else if (*my_str == 'S') {
+		northerness = 0;
+	} else {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	my_str++;
+
+	/* store number */
+	s = 1000.0 * s;
+	/* add a little to make floor in conversion a round */
+	s += 0.0005;
+	latitude = (uint32_t) s;
+	latitude += 1000 * 60 * m;
+	latitude += 1000 * 60 * 60 * h;
+	if (northerness) {
+		latitude = equator + latitude;
+	} else {
+		latitude = equator - latitude;
+	}
+	while (isblank((unsigned char)*my_str)) {
+		my_str++;
+	}
+
+	if (isdigit((unsigned char) *my_str)) {
+		h = (uint32_t) strtol(my_str, &my_str, 10);
+	} else {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	while (isblank((unsigned char) *my_str)) {
+		my_str++;
+	}
+
+	if (isdigit((unsigned char) *my_str)) {
+		m = (uint32_t) strtol(my_str, &my_str, 10);
+	} else if (*my_str == 'E' || *my_str == 'W') {
+		goto east;
+	} else {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	while (isblank((unsigned char)*my_str)) {
+		my_str++;
+	}
+
+	if (isdigit((unsigned char) *my_str)) {
+		s = strtod(my_str, &my_str);
+	}
+
+	/* skip blanks before easterness */
+	while (isblank((unsigned char)*my_str)) {
+		my_str++;
+	}
+
+east:
+	if (*my_str == 'E') {
+		easterness = 1;
+	} else if (*my_str == 'W') {
+		easterness = 0;
+	} else {
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	my_str++;
+
+	/* store number */
+	s *= 1000.0;
+	/* add a little to make floor in conversion a round */
+	s += 0.0005;
+	longitude = (uint32_t) s;
+	longitude += 1000 * 60 * m;
+	longitude += 1000 * 60 * 60 * h;
+
+	if (easterness) {
+		longitude += equator;
+	} else {
+		longitude = equator - longitude;
+	}
+
+	altitude = (uint32_t)(strtod(my_str, &my_str)*100.0 +
+		10000000.0 + 0.5);
+	if (*my_str == 'm' || *my_str == 'M') {
+		my_str++;
+	}
+
+	if (strlen(my_str) > 0) {
+		if(!loc_parse_cm(my_str, &my_str, &size_b, &size_e))
+			return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	if (strlen(my_str) > 0) {
+		if(!loc_parse_cm(my_str, &my_str, &horiz_pre_b, &horiz_pre_e))
+			return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	if (strlen(my_str) > 0) {
+		if(!loc_parse_cm(my_str, &my_str, &vert_pre_b, &vert_pre_e))
+			return LDNS_WIREPARSE_ERR_INVALID_STR;
+	}
+
+	if(*len < 16)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	rd[0] = 0;
+	rd[1] = ((size_b << 4) & 0xf0) | (size_e & 0x0f);
+	rd[2] = ((horiz_pre_b << 4) & 0xf0) | (horiz_pre_e & 0x0f);
+	rd[3] = ((vert_pre_b << 4) & 0xf0) | (vert_pre_e & 0x0f);
+	sldns_write_uint32(rd + 4, latitude);
+	sldns_write_uint32(rd + 8, longitude);
+	sldns_write_uint32(rd + 12, altitude);
+	*len = 16;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+static void
+ldns_tolower_str(char* s)
+{
+	if(s) {
+		while(*s) {
+			*s = (char)tolower((unsigned char)*s);
+			s++;
+		}
+	}
+}
+
+int sldns_str2wire_wks_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	int rd_len = 1;
+	int have_proto = 0;
+	char token[50], proto_str[50];
+	sldns_buffer strbuf;
+	sldns_buffer_init_frm_data(&strbuf, (uint8_t*)str, strlen(str));
+	proto_str[0]=0;
+
+	/* check we have one byte for proto */
+	if(*len < 1)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+
+	while(sldns_bget_token(&strbuf, token, "\t\n ", sizeof(token)) > 0) {
+		ldns_tolower_str(token);
+		if(!have_proto) {
+			struct protoent *p = getprotobyname(token);
+			have_proto = 1;
+			if(p) rd[0] = (uint8_t)p->p_proto;
+			else rd[0] = (uint8_t)atoi(token);
+			(void)strlcpy(proto_str, token, sizeof(proto_str));
+		} else {
+			int serv_port;
+			struct servent *serv = getservbyname(token, proto_str);
+			if(serv) serv_port=(int)ntohs((uint16_t)serv->s_port);
+			else {
+				serv_port = atoi(token);
+				if(serv_port == 0 && strcmp(token, "0") != 0) {
+#ifdef HAVE_ENDSERVENT
+					endservent();
+#endif
+#ifdef HAVE_ENDPROTOENT
+					endprotoent();
+#endif
+					return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX,
+						sldns_buffer_position(&strbuf));
+				}
+				if(serv_port < 0 || serv_port > 65535) {
+#ifdef HAVE_ENDSERVENT
+					endservent();
+#endif
+#ifdef HAVE_ENDPROTOENT
+					endprotoent();
+#endif
+					return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX,
+						sldns_buffer_position(&strbuf));
+				}
+			}
+			if(rd_len < 1+serv_port/8+1) {
+				/* bitmap is larger, init new bytes at 0 */
+				if(*len < 1+(size_t)serv_port/8+1) {
+#ifdef HAVE_ENDSERVENT
+					endservent();
+#endif
+#ifdef HAVE_ENDPROTOENT
+					endprotoent();
+#endif
+					return RET_ERR(
+					LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+					sldns_buffer_position(&strbuf));
+				}
+				memset(rd+rd_len, 0, 1+(size_t)serv_port/8+1-rd_len);
+				rd_len = 1+serv_port/8+1;
+			}
+			rd[1+ serv_port/8] |= (1 << (7 - serv_port % 8));
+		}
+	}
+	*len = (size_t)rd_len;
+
+#ifdef HAVE_ENDSERVENT
+	endservent();
+#endif
+#ifdef HAVE_ENDPROTOENT
+	endprotoent();
+#endif
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_nsap_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	const char* s = str;
+	size_t slen;
+	size_t dlen = 0; /* number of hexdigits parsed */
+
+	/* just a hex string with optional dots? */
+	if (s[0] != '0' || s[1] != 'x')
+		return LDNS_WIREPARSE_ERR_INVALID_STR;
+	s += 2;
+	slen = strlen(s);
+	if(slen > LDNS_MAX_RDFLEN*2)
+		return LDNS_WIREPARSE_ERR_LABEL_OVERFLOW;
+	while(*s) {
+		if(isspace((unsigned char)*s) || *s == '.') {
+			s++;
+			continue;
+		}
+		if(!isxdigit((unsigned char)*s))
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, s-str);
+		if(*len < dlen/2 + 1)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				s-str);
+		if((dlen&1)==0)
+			rd[dlen/2] = (uint8_t)sldns_hexdigit_to_int(*s++) * 16;
+		else	rd[dlen/2] += sldns_hexdigit_to_int(*s++);
+		dlen++;
+	}
+	if((dlen&1)!=0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, s-str);
+	*len = dlen/2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_atma_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	const char* s = str;
+	size_t slen = strlen(str);
+	size_t dlen = 0; /* number of hexdigits parsed */
+
+	/* just a hex string with optional dots? */
+	/* notimpl e.164 format */
+	if(slen > LDNS_MAX_RDFLEN*2)
+		return LDNS_WIREPARSE_ERR_LABEL_OVERFLOW;
+	while(*s) {
+		if(isspace((unsigned char)*s) || *s == '.') {
+			s++;
+			continue;
+		}
+		if(!isxdigit((unsigned char)*s))
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, s-str);
+		if(*len < dlen/2 + 1)
+			return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+				s-str);
+		if((dlen&1)==0)
+			rd[dlen/2] = (uint8_t)sldns_hexdigit_to_int(*s++) * 16;
+		else	rd[dlen/2] += sldns_hexdigit_to_int(*s++);
+		dlen++;
+	}
+	if((dlen&1)!=0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, s-str);
+	*len = dlen/2;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_ipseckey_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	size_t gwlen = 0, keylen = 0;
+	int s;
+	uint8_t gwtype;
+	char token[512];
+	sldns_buffer strbuf;
+	sldns_buffer_init_frm_data(&strbuf, (uint8_t*)str, strlen(str));
+
+	if(*len < 3)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	/* precedence */
+	if(sldns_bget_token(&strbuf, token, "\t\n ", sizeof(token)) <= 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR,
+			sldns_buffer_position(&strbuf));
+	rd[0] = (uint8_t)atoi(token);
+	/* gateway_type */
+	if(sldns_bget_token(&strbuf, token, "\t\n ", sizeof(token)) <= 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR,
+			sldns_buffer_position(&strbuf));
+	rd[1] = (uint8_t)atoi(token);
+	gwtype = rd[1];
+	/* algorithm */
+	if(sldns_bget_token(&strbuf, token, "\t\n ", sizeof(token)) <= 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR,
+			sldns_buffer_position(&strbuf));
+	rd[2] = (uint8_t)atoi(token);
+
+	/* gateway */
+	if(sldns_bget_token(&strbuf, token, "\t\n ", sizeof(token)) <= 0)
+		return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR,
+			sldns_buffer_position(&strbuf));
+	if(gwtype == 0) {
+		/* NOGATEWAY */
+		if(strcmp(token, ".") != 0)
+			return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR,
+				sldns_buffer_position(&strbuf));
+		gwlen = 0;
+	} else if(gwtype == 1) {
+		/* IP4 */
+		gwlen = *len - 3;
+		s = sldns_str2wire_a_buf(token, rd+3, &gwlen);
+		if(s) return RET_ERR_SHIFT(s, sldns_buffer_position(&strbuf));
+	} else if(gwtype == 2) {
+		/* IP6 */
+		gwlen = *len - 3;
+		s = sldns_str2wire_aaaa_buf(token, rd+3, &gwlen);
+		if(s) return RET_ERR_SHIFT(s, sldns_buffer_position(&strbuf));
+	} else if(gwtype == 3) {
+		/* DNAME */
+		gwlen = *len - 3;
+		s = sldns_str2wire_dname_buf(token, rd+3, &gwlen);
+		if(s) return RET_ERR_SHIFT(s, sldns_buffer_position(&strbuf));
+	} else {
+		/* unknown gateway type */
+		return RET_ERR(LDNS_WIREPARSE_ERR_INVALID_STR,
+			sldns_buffer_position(&strbuf));
+	}
+	/* double check for size */
+	if(*len < 3 + gwlen)
+		return RET_ERR(LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL,
+			sldns_buffer_position(&strbuf));
+
+	/* publickey in remainder of strbuf */
+	keylen = *len - 3 - gwlen;
+	s = sldns_str2wire_b64_buf((const char*)sldns_buffer_current(&strbuf),
+		rd+3+gwlen, &keylen);
+	if(s) return RET_ERR_SHIFT(s, sldns_buffer_position(&strbuf));
+
+	*len = 3 + gwlen + keylen;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_nsec3_salt_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	int i, salt_length_str = (int)strlen(str);
+	if (salt_length_str == 1 && str[0] == '-') {
+		salt_length_str = 0;
+	} else if (salt_length_str % 2 != 0) {
+		return LDNS_WIREPARSE_ERR_SYNTAX_HEX;
+	}
+	if (salt_length_str > 512)
+		return LDNS_WIREPARSE_ERR_SYNTAX_HEX;
+	if(*len < 1+(size_t)salt_length_str / 2)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	rd[0] = (uint8_t) (salt_length_str / 2);
+	for (i = 0; i < salt_length_str; i += 2) {
+		if (isxdigit((unsigned char)str[i]) &&
+			isxdigit((unsigned char)str[i+1])) {
+			rd[1+i/2] = (uint8_t)(sldns_hexdigit_to_int(str[i])*16
+				+ sldns_hexdigit_to_int(str[i+1]));
+		} else {
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_HEX, i);
+		}
+	}
+	*len = 1 + (size_t)rd[0];
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_ilnp64_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	unsigned int a, b, c, d;
+	uint16_t shorts[4];
+	int l;
+	if(*len < sizeof(shorts))
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+
+	if (sscanf(str, "%4x:%4x:%4x:%4x%n", &a, &b, &c, &d, &l) != 4 ||
+			l != (int)strlen(str) || /* more data to read */
+			strpbrk(str, "+-")       /* signed hexes */
+			)
+		return LDNS_WIREPARSE_ERR_SYNTAX_ILNP64;
+	shorts[0] = htons(a);
+	shorts[1] = htons(b);
+	shorts[2] = htons(c);
+	shorts[3] = htons(d);
+	memmove(rd, &shorts, sizeof(shorts));
+	*len = sizeof(shorts);
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_eui48_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	unsigned int a, b, c, d, e, f;
+	int l;
+
+	if(*len < 6)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	if (sscanf(str, "%2x-%2x-%2x-%2x-%2x-%2x%n",
+			&a, &b, &c, &d, &e, &f, &l) != 6 ||
+			l != (int)strlen(str))
+		return LDNS_WIREPARSE_ERR_SYNTAX_EUI48;
+	rd[0] = a;
+	rd[1] = b;
+	rd[2] = c;
+	rd[3] = d;
+	rd[4] = e;
+	rd[5] = f;
+	*len = 6;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_eui64_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	unsigned int a, b, c, d, e, f, g, h;
+	int l;
+
+	if(*len < 8)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	if (sscanf(str, "%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x%n",
+			&a, &b, &c, &d, &e, &f, &g, &h, &l) != 8 ||
+			l != (int)strlen(str))
+		return LDNS_WIREPARSE_ERR_SYNTAX_EUI64;
+	rd[0] = a;
+	rd[1] = b;
+	rd[2] = c;
+	rd[3] = d;
+	rd[4] = e;
+	rd[5] = f;
+	rd[6] = g;
+	rd[7] = h;
+	*len = 8;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_tag_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	size_t slen = strlen(str);
+	const char* ptr;
+
+	if (slen > 255)
+		return LDNS_WIREPARSE_ERR_SYNTAX_TAG;
+	if(*len < slen+1)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	for (ptr = str; *ptr; ptr++) {
+		if(!isalnum((unsigned char)*ptr))
+			return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_TAG, ptr-str);
+	}
+	rd[0] = slen;
+	memmove(rd+1, str, slen);
+	*len = slen+1;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_long_str_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	uint8_t ch = 0;
+	const char* pstr = str;
+	size_t length = 0;
+
+	/* Fill data with parsed bytes */
+	while (sldns_parse_char(&ch, &pstr)) {
+		if(*len < length+1)
+			return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+		rd[length++] = ch;
+	}
+	if(!pstr)
+		return LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE;
+	*len = length;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_hip_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	char* s, *end;
+	int e;
+	size_t hitlen, pklen = 0;
+	/* presentation format:
+	 * 	pk-algo HIThex pubkeybase64
+	 * wireformat:
+	 * 	hitlen[1byte] pkalgo[1byte] pubkeylen[2byte] [hit] [pubkey] */
+	if(*len < 4)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+
+	/* read PK algorithm */
+	rd[1] = (uint8_t)strtol((char*)str, &s, 10);
+	if(*s != ' ')
+		return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX_INT, s-(char*)str);
+	s++;
+	while(*s == ' ')
+		s++;
+
+	/* read HIT hex tag */
+	/* zero terminate the tag (replace later) */
+	end = strchr(s, ' ');
+	if(!end) return RET_ERR(LDNS_WIREPARSE_ERR_SYNTAX, s-(char*)str);
+	*end = 0;
+	hitlen = *len - 4;
+	if((e = sldns_str2wire_hex_buf(s, rd+4, &hitlen)) != 0) {
+		*end = ' ';
+		return RET_ERR_SHIFT(e, s-(char*)str);
+	}
+	if(hitlen > 255) {
+		*end = ' ';
+		return RET_ERR(LDNS_WIREPARSE_ERR_LABEL_OVERFLOW, s-(char*)str+255*2);
+	}
+	rd[0] = (uint8_t)hitlen;
+	*end = ' ';
+	s = end+1;
+
+	/* read pubkey base64 sequence */
+	pklen = *len - 4 - hitlen;
+	if((e = sldns_str2wire_b64_buf(s, rd+4+hitlen, &pklen)) != 0)
+		return RET_ERR_SHIFT(e, s-(char*)str);
+	if(pklen > 65535)
+		return RET_ERR(LDNS_WIREPARSE_ERR_LABEL_OVERFLOW, s-(char*)str+65535);
+	sldns_write_uint16(rd+2, pklen);
+
+	*len = 4 + hitlen + pklen;
+	return LDNS_WIREPARSE_ERR_OK;
+}
+
+int sldns_str2wire_int16_data_buf(const char* str, uint8_t* rd, size_t* len)
+{
+	size_t sz = sldns_b64_pton_calculate_size(strlen(str));
+	int n;
+	if(*len < sz+2)
+		return LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL;
+	if(sz > 65535)
+		return LDNS_WIREPARSE_ERR_LABEL_OVERFLOW;
+	n = sldns_b64_pton(str, rd+2, (*len)-2);
+	if(n < 0)
+		return LDNS_WIREPARSE_ERR_SYNTAX_B64;
+	sldns_write_uint16(rd, (uint16_t)n);
+	*len = (size_t)n;
+	return LDNS_WIREPARSE_ERR_OK;
+}
diff --git a/external/unbound/sldns/str2wire.h b/external/unbound/sldns/str2wire.h
new file mode 100644
index 000000000..527074a15
--- /dev/null
+++ b/external/unbound/sldns/str2wire.h
@@ -0,0 +1,541 @@
+/**
+ * str2wire.h -  read txt presentation of RRs
+ *
+ * (c) NLnet Labs, 2005-2006
+ *
+ * See the file LICENSE for the license
+ */
+
+/**
+ * \file
+ *
+ * Parses text to wireformat.
+ */
+
+#ifndef LDNS_STR2WIRE_H
+#define LDNS_STR2WIRE_H
+
+/* include rrdef for MAX_DOMAINLEN constant */
+#include <sldns/rrdef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct sldns_struct_lookup_table;
+
+/** buffer to read an RR, cannot be larger than 64K because of packet size */
+#define LDNS_RR_BUF_SIZE 65535 /* bytes */
+#define LDNS_DEFAULT_TTL	3600
+
+/*
+ * To convert class and type to string see
+ * sldns_get_rr_class_by_name(str)
+ * sldns_get_rr_type_by_name(str)
+ * from rrdef.h
+ */
+
+/**
+ * Convert text string into dname wireformat, mallocless, with user buffer.
+ * @param str: the text string with the domain name.
+ * @param buf: the result buffer, suggested size LDNS_MAX_DOMAINLEN+1
+ * @param len: length of the buffer on input, length of the result on output.
+ * @return 0 on success, otherwise an error.
+ */
+int sldns_str2wire_dname_buf(const char* str, uint8_t* buf, size_t* len);
+
+/**
+ * Same as sldns_str2wire_dname_buf, but concatenates origin if the domain
+ * name is relative (does not end in '.').
+ * @param str: the text string with the domain name.
+ * @param buf: the result buffer, suggested size LDNS_MAX_DOMAINLEN+1
+ * @param len: length of the buffer on input, length of the result on output.
+ * @param origin: the origin to append or NULL (nothing is appended).
+ * @param origin_len: length of origin.
+ * @return 0 on success, otherwise an error.
+ */
+int sldns_str2wire_dname_buf_origin(const char* str, uint8_t* buf, size_t* len,
+	uint8_t* origin, size_t origin_len);
+
+/**
+ * Convert text string into dname wireformat
+ * @param str: the text string with the domain name.
+ * @param len: returned length of wireformat.
+ * @return wireformat dname (malloced) or NULL on failure.
+ */
+uint8_t* sldns_str2wire_dname(const char* str, size_t* len);
+
+/**
+ * Convert text RR to wireformat, with user buffer.
+ * @param str: the RR data in text presentation format.
+ * @param rr: the buffer where the result is stored into.  This buffer has
+ * 	the wire-dname(uncompressed), type, class, ttl, rdatalen, rdata.
+ * 	These values are probably not aligned, and in network format.
+ * 	Use the sldns_wirerr_get_xxx functions to access them safely.
+ * 	buffer size LDNS_RR_BUF_SIZE is suggested.
+ * @param len: on input the length of the buffer, on output the amount of
+ * 	the buffer used for the rr.
+ * @param dname_len: if non-NULL, filled with the dname length as result.
+ * 	Because after the dname you find the type, class, ttl, rdatalen, rdata.
+ * @param default_ttl: TTL used if no TTL available.
+ * @param origin: used for origin dname (if not NULL)
+ * @param origin_len: length of origin.
+ * @param prev: used for prev_rr dname (if not NULL)
+ * @param prev_len: length of prev.
+ * @return 0 on success, an error on failure.
+ */
+int sldns_str2wire_rr_buf(const char* str, uint8_t* rr, size_t* len,
+	size_t* dname_len, uint32_t default_ttl, uint8_t* origin,
+	size_t origin_len, uint8_t* prev, size_t prev_len);
+
+/**
+ * Same as sldns_str2wire_rr_buf, but there is no rdata, it returns an RR
+ * with zero rdata and no ttl.  It has name, type, class.
+ * You can access those with the sldns_wirerr_get_type and class functions.
+ * @param str: the RR data in text presentation format.
+ * @param rr: the buffer where the result is stored into.
+ * @param len: on input the length of the buffer, on output the amount of
+ * 	the buffer used for the rr.
+ * @param dname_len: if non-NULL, filled with the dname length as result.
+ * 	Because after the dname you find the type, class, ttl, rdatalen, rdata.
+ * @param origin: used for origin dname (if not NULL)
+ * @param origin_len: length of origin.
+ * @param prev: used for prev_rr dname (if not NULL)
+ * @param prev_len: length of prev.
+ * @return 0 on success, an error on failure.
+ */
+int sldns_str2wire_rr_question_buf(const char* str, uint8_t* rr, size_t* len,
+	size_t* dname_len, uint8_t* origin, size_t origin_len, uint8_t* prev,
+	size_t prev_len);
+
+/**
+ * Get the type of the RR.
+ * @param rr: the RR in wire format.
+ * @param len: rr length.
+ * @param dname_len: dname length to skip.
+ * @return type in host byteorder
+ */
+uint16_t sldns_wirerr_get_type(uint8_t* rr, size_t len, size_t dname_len);
+
+/**
+ * Get the class of the RR.
+ * @param rr: the RR in wire format.
+ * @param len: rr length.
+ * @param dname_len: dname length to skip.
+ * @return class in host byteorder
+ */
+uint16_t sldns_wirerr_get_class(uint8_t* rr, size_t len, size_t dname_len);
+
+/**
+ * Get the ttl of the RR.
+ * @param rr: the RR in wire format.
+ * @param len: rr length.
+ * @param dname_len: dname length to skip.
+ * @return ttl in host byteorder
+ */
+uint32_t sldns_wirerr_get_ttl(uint8_t* rr, size_t len, size_t dname_len);
+
+/**
+ * Get the rdata length of the RR.
+ * @param rr: the RR in wire format.
+ * @param len: rr length.
+ * @param dname_len: dname length to skip.
+ * @return rdata length in host byteorder
+ * 	If the rdata length is larger than the rr-len allows, it is truncated.
+ * 	So, that it is safe to read the data length returned
+ * 	from this function from the rdata pointer of sldns_wirerr_get_rdata.
+ */
+uint16_t sldns_wirerr_get_rdatalen(uint8_t* rr, size_t len, size_t dname_len);
+
+/**
+ * Get the rdata pointer of the RR.
+ * @param rr: the RR in wire format.
+ * @param len: rr length.
+ * @param dname_len: dname length to skip.
+ * @return rdata pointer
+ */
+uint8_t* sldns_wirerr_get_rdata(uint8_t* rr, size_t len, size_t dname_len);
+
+/**
+ * Get the rdata pointer of the RR. prefixed with rdata length.
+ * @param rr: the RR in wire format.
+ * @param len: rr length.
+ * @param dname_len: dname length to skip.
+ * @return pointer to rdatalength, followed by the rdata.
+ */
+uint8_t* sldns_wirerr_get_rdatawl(uint8_t* rr, size_t len, size_t dname_len);
+
+/**
+ * Parse result codes
+ */
+#define LDNS_WIREPARSE_MASK 0x0fff
+#define LDNS_WIREPARSE_SHIFT 12
+#define LDNS_WIREPARSE_ERROR(e) ((e)&LDNS_WIREPARSE_MASK)
+#define LDNS_WIREPARSE_OFFSET(e) (((e)&~LDNS_WIREPARSE_MASK)>>LDNS_WIREPARSE_SHIFT)
+/* use lookuptable to get error string, sldns_wireparse_errors */
+#define LDNS_WIREPARSE_ERR_OK 0
+#define LDNS_WIREPARSE_ERR_GENERAL 342
+#define LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW 343
+#define LDNS_WIREPARSE_ERR_DOMAINNAME_UNDERFLOW 344
+#define LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL 345
+#define LDNS_WIREPARSE_ERR_LABEL_OVERFLOW 346
+#define LDNS_WIREPARSE_ERR_EMPTY_LABEL 347
+#define LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE 348
+#define LDNS_WIREPARSE_ERR_SYNTAX 349
+#define LDNS_WIREPARSE_ERR_SYNTAX_TTL 350
+#define LDNS_WIREPARSE_ERR_SYNTAX_TYPE 351
+#define LDNS_WIREPARSE_ERR_SYNTAX_CLASS 352
+#define LDNS_WIREPARSE_ERR_SYNTAX_RDATA 353
+#define LDNS_WIREPARSE_ERR_SYNTAX_MISSING_VALUE 354
+#define LDNS_WIREPARSE_ERR_INVALID_STR 355
+#define LDNS_WIREPARSE_ERR_SYNTAX_B64 356
+#define LDNS_WIREPARSE_ERR_SYNTAX_B32_EXT 357
+#define LDNS_WIREPARSE_ERR_SYNTAX_HEX 358
+#define LDNS_WIREPARSE_ERR_CERT_BAD_ALGORITHM 359
+#define LDNS_WIREPARSE_ERR_SYNTAX_TIME 360
+#define LDNS_WIREPARSE_ERR_SYNTAX_PERIOD 361
+#define LDNS_WIREPARSE_ERR_SYNTAX_ILNP64 362
+#define LDNS_WIREPARSE_ERR_SYNTAX_EUI48 363
+#define LDNS_WIREPARSE_ERR_SYNTAX_EUI64 364
+#define LDNS_WIREPARSE_ERR_SYNTAX_TAG 365
+#define LDNS_WIREPARSE_ERR_NOT_IMPL 366
+#define LDNS_WIREPARSE_ERR_SYNTAX_INT 367
+#define LDNS_WIREPARSE_ERR_SYNTAX_IP4 368
+#define LDNS_WIREPARSE_ERR_SYNTAX_IP6 369
+#define LDNS_WIREPARSE_ERR_SYNTAX_INTEGER_OVERFLOW 370
+#define LDNS_WIREPARSE_ERR_INCLUDE 371
+#define LDNS_WIREPARSE_ERR_PARENTHESIS 372
+
+/**
+ * Get reference to a constant string for the (parse) error.
+ * @param e: error return value
+ * @return string.
+ */
+const char* sldns_get_errorstr_parse(int e);
+
+/**
+ * wire parse state for parsing files
+ */
+struct sldns_file_parse_state {
+	/** the origin domain name, if len!=0. uncompressed wireformat */
+	uint8_t origin[LDNS_MAX_DOMAINLEN+1];
+	/** length of origin domain name, in bytes. 0 if not set. */
+	size_t origin_len;
+	/** the previous domain name, if len!=0. uncompressed wireformat*/
+	uint8_t prev_rr[LDNS_MAX_DOMAINLEN+1];
+	/** length of the previous domain name, in bytes. 0 if not set. */
+	size_t prev_rr_len;
+	/** default TTL, this is used if the text does not specify a TTL,
+	 * host byteorder */
+	uint32_t default_ttl;
+	/** line number information */
+	int lineno;
+};
+
+/**
+ * Read one RR from zonefile with buffer for the data.
+ * @param in: file that is read from (one RR, multiple lines if it spans them).
+ * @param rr: this is malloced by the user and the result is stored here,
+ * 	if an RR is read.  If no RR is read this is signalled with the
+ * 	return len set to 0 (for ORIGIN, TTL directives).
+ * @param len: on input, the length of the rr buffer.  on output the rr len.
+ * 	Buffer size of 64k should be enough.
+ * @param dname_len: returns the length of the dname initial part of the rr.
+ * @param parse_state: pass a pointer to user-allocated struct.
+ * 	Contents are maintained by this function.
+ * 	If you pass NULL then ORIGIN and TTL directives are not honored.
+ * 	You can start out with a particular origin by pre-filling it.
+ * 	otherwise, zero the structure before passing it.
+ * 	lineno is incremented when a newline is passed by the parser,
+ * 	you should initialize it at 1 at the start of the file.
+ * @return 0 on success, error on failure.
+ */
+int sldns_fp2wire_rr_buf(FILE* in, uint8_t* rr, size_t* len, size_t* dname_len,
+	struct sldns_file_parse_state* parse_state);
+
+/**
+ * Convert one rdf in rdata to wireformat and parse from string.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @param rdftype: the type of the rdf.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_rdf_buf(const char* str, uint8_t* rd, size_t* len,
+	sldns_rdf_type rdftype);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_INT8 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_int8_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_INT16 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_int16_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_INT32 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_int32_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_A from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_a_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_AAAA from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_aaaa_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_STR from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_str_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_APL from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_apl_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_B64 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_b64_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_B32_EXT from string to wireformat.
+ * And also LDNS_RDF_TYPE_NSEC3_NEXT_OWNER.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_b32_ext_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_HEX from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_hex_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_NSEC from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_nsec_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_TYPE from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_type_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_CLASS from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_class_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_CERT_ALG from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_cert_alg_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_ALG from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_alg_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_TIME from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_time_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_PERIOD from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_period_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_LOC from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_loc_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_WKS from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_wks_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_NSAP from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_nsap_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_ATMA from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_atma_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_IPSECKEY from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_ipseckey_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_NSEC3_SALT from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_nsec3_salt_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_ILNP64 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_ilnp64_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_EUI48 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_eui48_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_EUI64 from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_eui64_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_TAG from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_tag_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_LONG_STR from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_long_str_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_HIP from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_hip_buf(const char* str, uint8_t* rd, size_t* len);
+
+/**
+ * Convert rdf of type LDNS_RDF_TYPE_INT16_DATA from string to wireformat.
+ * @param str: the text to convert for this rdata element.
+ * @param rd: rdata buffer for the wireformat.
+ * @param len: length of rd buffer on input, used length on output.
+ * @return 0 on success, error on failure.
+ */
+int sldns_str2wire_int16_data_buf(const char* str, uint8_t* rd, size_t* len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_STR2WIRE_H */
diff --git a/external/unbound/sldns/wire2str.c b/external/unbound/sldns/wire2str.c
new file mode 100644
index 000000000..cec3bc7b0
--- /dev/null
+++ b/external/unbound/sldns/wire2str.c
@@ -0,0 +1,1967 @@
+/*
+ * wire2str.c
+ *
+ * conversion routines from the wire format
+ * to the presentation format (strings)
+ *
+ * (c) NLnet Labs, 2004-2006
+ *
+ * See the file LICENSE for the license
+ */
+/**
+ * \file
+ *
+ * Contains functions to translate the wireformat to text
+ * representation, as well as functions to print them.
+ */
+#include "config.h"
+#include "sldns/wire2str.h"
+#include "sldns/str2wire.h"
+#include "sldns/rrdef.h"
+#include "sldns/pkthdr.h"
+#include "sldns/parseutil.h"
+#include "sldns/sbuffer.h"
+#include "sldns/keyraw.h"
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#include <sys/time.h>
+#include <stdarg.h>
+#include <ctype.h>
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+/* lookup tables for standard DNS stuff  */
+/* Taken from RFC 2535, section 7.  */
+static sldns_lookup_table sldns_algorithms_data[] = {
+	{ LDNS_RSAMD5, "RSAMD5" },
+	{ LDNS_DH, "DH" },
+	{ LDNS_DSA, "DSA" },
+	{ LDNS_ECC, "ECC" },
+	{ LDNS_RSASHA1, "RSASHA1" },
+	{ LDNS_DSA_NSEC3, "DSA-NSEC3-SHA1" },
+	{ LDNS_RSASHA1_NSEC3, "RSASHA1-NSEC3-SHA1" },
+	{ LDNS_RSASHA256, "RSASHA256"},
+	{ LDNS_RSASHA512, "RSASHA512"},
+	{ LDNS_ECC_GOST, "ECC-GOST"},
+	{ LDNS_ECDSAP256SHA256, "ECDSAP256SHA256"},
+	{ LDNS_ECDSAP384SHA384, "ECDSAP384SHA384"},
+	{ LDNS_INDIRECT, "INDIRECT" },
+	{ LDNS_PRIVATEDNS, "PRIVATEDNS" },
+	{ LDNS_PRIVATEOID, "PRIVATEOID" },
+	{ 0, NULL }
+};
+sldns_lookup_table* sldns_algorithms = sldns_algorithms_data;
+
+/* hash algorithms in DS record */
+static sldns_lookup_table sldns_hashes_data[] = {
+	{ LDNS_SHA1, "SHA1" },
+	{ LDNS_SHA256, "SHA256" },
+	{ LDNS_HASH_GOST, "HASH-GOST" },
+	{ LDNS_SHA384, "SHA384" },
+	{ 0, NULL }
+};
+sldns_lookup_table* sldns_hashes = sldns_hashes_data;
+
+/* Taken from RFC 4398  */
+static sldns_lookup_table sldns_cert_algorithms_data[] = {
+	{ LDNS_CERT_PKIX, "PKIX" },
+	{ LDNS_CERT_SPKI, "SPKI" },
+	{ LDNS_CERT_PGP, "PGP" },
+	{ LDNS_CERT_IPKIX, "IPKIX" },
+	{ LDNS_CERT_ISPKI, "ISPKI" },
+	{ LDNS_CERT_IPGP, "IPGP" },
+	{ LDNS_CERT_ACPKIX, "ACPKIX" },
+	{ LDNS_CERT_IACPKIX, "IACPKIX" },
+	{ LDNS_CERT_URI, "URI" },
+	{ LDNS_CERT_OID, "OID" },
+	{ 0, NULL }
+};
+sldns_lookup_table* sldns_cert_algorithms = sldns_cert_algorithms_data;
+
+/* if these are used elsewhere */
+static sldns_lookup_table sldns_rcodes_data[] = {
+	{ LDNS_RCODE_NOERROR, "NOERROR" },
+	{ LDNS_RCODE_FORMERR, "FORMERR" },
+	{ LDNS_RCODE_SERVFAIL, "SERVFAIL" },
+	{ LDNS_RCODE_NXDOMAIN, "NXDOMAIN" },
+	{ LDNS_RCODE_NOTIMPL, "NOTIMPL" },
+	{ LDNS_RCODE_REFUSED, "REFUSED" },
+	{ LDNS_RCODE_YXDOMAIN, "YXDOMAIN" },
+	{ LDNS_RCODE_YXRRSET, "YXRRSET" },
+	{ LDNS_RCODE_NXRRSET, "NXRRSET" },
+	{ LDNS_RCODE_NOTAUTH, "NOTAUTH" },
+	{ LDNS_RCODE_NOTZONE, "NOTZONE" },
+	{ 0, NULL }
+};
+sldns_lookup_table* sldns_rcodes = sldns_rcodes_data;
+
+static sldns_lookup_table sldns_opcodes_data[] = {
+	{ LDNS_PACKET_QUERY, "QUERY" },
+	{ LDNS_PACKET_IQUERY, "IQUERY" },
+	{ LDNS_PACKET_STATUS, "STATUS" },
+	{ LDNS_PACKET_NOTIFY, "NOTIFY" },
+	{ LDNS_PACKET_UPDATE, "UPDATE" },
+	{ 0, NULL }
+};
+sldns_lookup_table* sldns_opcodes = sldns_opcodes_data;
+
+static sldns_lookup_table sldns_wireparse_errors_data[] = {
+	{ LDNS_WIREPARSE_ERR_OK, "no parse error" },
+	{ LDNS_WIREPARSE_ERR_GENERAL, "parse error" },
+	{ LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW, "Domainname length overflow" },
+	{ LDNS_WIREPARSE_ERR_DOMAINNAME_UNDERFLOW, "Domainname length underflow (zero length)" },
+	{ LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL, "buffer too small" },
+	{ LDNS_WIREPARSE_ERR_LABEL_OVERFLOW, "Label length overflow" },
+	{ LDNS_WIREPARSE_ERR_EMPTY_LABEL, "Empty label" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE, "Syntax error, bad escape sequence" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX, "Syntax error, could not parse the RR" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_TTL, "Syntax error, could not parse the RR's TTL" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_TYPE, "Syntax error, could not parse the RR's type" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_CLASS, "Syntax error, could not parse the RR's class" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_RDATA, "Syntax error, could not parse the RR's rdata" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_MISSING_VALUE, "Syntax error, value expected" },
+	{ LDNS_WIREPARSE_ERR_INVALID_STR, "Conversion error, string expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_B64, "Conversion error, b64 encoding expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_B32_EXT, "Conversion error, b32 ext encoding expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_HEX, "Conversion error, hex encoding expected" },
+	{ LDNS_WIREPARSE_ERR_CERT_BAD_ALGORITHM, "Bad algorithm type for CERT record" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_TIME, "Conversion error, time encoding expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_PERIOD, "Conversion error, time period encoding expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_ILNP64, "Conversion error, 4 colon separated hex numbers expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_EUI48,
+		"Conversion error, 6 two character hex numbers "
+		"separated by dashes expected (i.e. xx-xx-xx-xx-xx-xx" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_EUI64,
+		"Conversion error, 8 two character hex numbers "
+		"separated by dashes expected (i.e. xx-xx-xx-xx-xx-xx-xx-xx" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_TAG,
+		"Conversion error, a non-zero sequence of US-ASCII letters "
+		"and numbers in lower case expected" },
+	{ LDNS_WIREPARSE_ERR_NOT_IMPL, "not implemented" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_INT, "Conversion error, integer expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_IP4, "Conversion error, ip4 addr expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_IP6, "Conversion error, ip6 addr expected" },
+	{ LDNS_WIREPARSE_ERR_SYNTAX_INTEGER_OVERFLOW, "Syntax error, integer overflow" },
+	{ LDNS_WIREPARSE_ERR_INCLUDE, "$INCLUDE directive was seen in the zone" },
+	{ LDNS_WIREPARSE_ERR_PARENTHESIS, "Parse error, parenthesis mismatch" },
+	{ 0, NULL }
+};
+sldns_lookup_table* sldns_wireparse_errors = sldns_wireparse_errors_data;
+
+static sldns_lookup_table sldns_edns_flags_data[] = {
+	{ 3600, "do"},
+	{ 0, NULL}
+};
+sldns_lookup_table* sldns_edns_flags = sldns_edns_flags_data;
+
+static sldns_lookup_table sldns_edns_options_data[] = {
+	{ 1, "LLQ" },
+	{ 2, "UL" },
+	{ 3, "NSID" },
+	/* 4 draft-cheshire-edns0-owner-option */
+	{ 5, "DAU" },
+	{ 6, "DHU" },
+	{ 7, "N3U" },
+	{ 8, "edns-client-subnet" },
+	{ 0, NULL}
+};
+sldns_lookup_table* sldns_edns_options = sldns_edns_options_data;
+
+char* sldns_wire2str_pkt(uint8_t* data, size_t len)
+{
+	size_t slen = (size_t)sldns_wire2str_pkt_buf(data, len, NULL, 0);
+	char* result = (char*)malloc(slen+1);
+	if(!result) return NULL;
+	sldns_wire2str_pkt_buf(data, len, result, slen+1);
+	return result;
+}
+
+char* sldns_wire2str_rr(uint8_t* rr, size_t len)
+{
+	size_t slen = (size_t)sldns_wire2str_rr_buf(rr, len, NULL, 0);
+	char* result = (char*)malloc(slen+1);
+	if(!result) return NULL;
+	sldns_wire2str_rr_buf(rr, len, result, slen+1);
+	return result;
+}
+
+char* sldns_wire2str_type(uint16_t rrtype)
+{
+	char buf[16];
+	sldns_wire2str_type_buf(rrtype, buf, sizeof(buf));
+	return strdup(buf);
+}
+
+char* sldns_wire2str_class(uint16_t rrclass)
+{
+	char buf[16];
+	sldns_wire2str_class_buf(rrclass, buf, sizeof(buf));
+	return strdup(buf);
+}
+
+char* sldns_wire2str_dname(uint8_t* dname, size_t dname_len)
+{
+	size_t slen=(size_t)sldns_wire2str_dname_buf(dname, dname_len, NULL, 0);
+	char* result = (char*)malloc(slen+1);
+	if(!result) return NULL;
+	sldns_wire2str_dname_buf(dname, dname_len, result, slen+1);
+	return result;
+}
+
+char* sldns_wire2str_rcode(int rcode)
+{
+	char buf[16];
+	sldns_wire2str_rcode_buf(rcode, buf, sizeof(buf));
+	return strdup(buf);
+}
+
+int sldns_wire2str_pkt_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_pkt_scan(&d, &dlen, &s, &slen);
+}
+
+int sldns_wire2str_rr_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_rr_scan(&d, &dlen, &s, &slen, NULL, 0);
+}
+
+int sldns_wire2str_rdata_buf(uint8_t* rdata, size_t rdata_len, char* str,
+	size_t str_len, uint16_t rrtype)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_rdata_scan(&rdata, &rdata_len, &str, &str_len,
+		rrtype, NULL, 0);
+}
+
+int sldns_wire2str_rr_unknown_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_rr_unknown_scan(&d, &dlen, &s, &slen, NULL, 0);
+}
+
+int sldns_wire2str_rr_comment_buf(uint8_t* rr, size_t rrlen, size_t dname_len,
+	char* s, size_t slen)
+{
+	uint16_t rrtype = sldns_wirerr_get_type(rr, rrlen, dname_len);
+	return sldns_wire2str_rr_comment_print(&s, &slen, rr, rrlen, dname_len,
+		rrtype);
+}
+
+int sldns_wire2str_type_buf(uint16_t rrtype, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_type_print(&s, &slen, rrtype);
+}
+
+int sldns_wire2str_class_buf(uint16_t rrclass, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_class_print(&s, &slen, rrclass);
+}
+
+int sldns_wire2str_rcode_buf(int rcode, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_rcode_print(&s, &slen, rcode);
+}
+
+int sldns_wire2str_dname_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
+{
+	/* use arguments as temporary variables */
+	return sldns_wire2str_dname_scan(&d, &dlen, &s, &slen, NULL, 0);
+}
+
+int sldns_str_vprint(char** str, size_t* slen, const char* format, va_list args)
+{
+	int w = vsnprintf(*str, *slen, format, args);
+	if(w < 0) {
+		/* error in printout */
+		return 0;
+	} else if((size_t)w >= *slen) {
+		*str = NULL; /* we do not want str to point outside of buffer*/
+		*slen = 0;
+	} else {
+		*str += w;
+		*slen -= w;
+	}
+	return w;
+}
+
+int sldns_str_print(char** str, size_t* slen, const char* format, ...)
+{
+	int w;
+	va_list args;
+	va_start(args, format);
+	w = sldns_str_vprint(str, slen, format, args);
+	va_end(args);
+	return w;
+}
+
+/** print hex format into text buffer for specified length */
+static int print_hex_buf(char** s, size_t* slen, uint8_t* buf, size_t len)
+{
+	const char* hex = "0123456789ABCDEF";
+	size_t i;
+	for(i=0; i<len; i++) {
+		(void)sldns_str_print(s, slen, "%c%c", hex[(buf[i]&0xf0)>>4],
+			hex[buf[i]&0x0f]);
+	}
+	return (int)len*2;
+}
+
+/** print remainder of buffer in hex format with prefixed text */
+static int print_remainder_hex(const char* pref, uint8_t** d, size_t* dlen,
+	char** s, size_t* slen)
+{
+	int w = 0;
+	w += sldns_str_print(s, slen, "%s", pref);
+	w += print_hex_buf(s, slen, *d, *dlen);
+	*d += *dlen;
+	*dlen = 0;
+	return w;
+}
+
+int sldns_wire2str_pkt_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
+{
+	int w = 0;
+	unsigned qdcount, ancount, nscount, arcount, i;
+	uint8_t* pkt = *d;
+	size_t pktlen = *dlen;
+	if(*dlen >= LDNS_HEADER_SIZE) {
+		qdcount = (unsigned)LDNS_QDCOUNT(*d);
+		ancount = (unsigned)LDNS_ANCOUNT(*d);
+		nscount = (unsigned)LDNS_NSCOUNT(*d);
+		arcount = (unsigned)LDNS_ARCOUNT(*d);
+	} else {
+		qdcount = ancount = nscount = arcount = 0;
+	}
+	w += sldns_wire2str_header_scan(d, dlen, s, slen);
+	w += sldns_str_print(s, slen, "\n");
+	w += sldns_str_print(s, slen, ";; QUESTION SECTION:\n");
+	for(i=0; i<qdcount; i++) {
+		w += sldns_wire2str_rrquestion_scan(d, dlen, s, slen,
+			pkt, pktlen);
+		if(!*dlen) break;
+	}
+	w += sldns_str_print(s, slen, "\n");
+	w += sldns_str_print(s, slen, ";; ANSWER SECTION:\n");
+	for(i=0; i<ancount; i++) {
+		w += sldns_wire2str_rr_scan(d, dlen, s, slen, pkt, pktlen);
+		if(!*dlen) break;
+	}
+	w += sldns_str_print(s, slen, "\n");
+	w += sldns_str_print(s, slen, ";; AUTHORITY SECTION:\n");
+	for(i=0; i<nscount; i++) {
+		w += sldns_wire2str_rr_scan(d, dlen, s, slen, pkt, pktlen);
+		if(!*dlen) break;
+	}
+	w += sldns_str_print(s, slen, "\n");
+	w += sldns_str_print(s, slen, ";; ADDITIONAL SECTION:\n");
+	for(i=0; i<arcount; i++) {
+		w += sldns_wire2str_rr_scan(d, dlen, s, slen, pkt, pktlen);
+		if(!*dlen) break;
+	}
+	/* other fields: WHEN(time), SERVER(IP) not available here. */
+	w += sldns_str_print(s, slen, ";; MSG SIZE  rcvd: %d\n", (int)pktlen);
+	if(*dlen > 0) {
+		w += print_remainder_hex(";; trailing garbage 0x",
+			d, dlen, s, slen);
+		w += sldns_str_print(s, slen, "\n");
+	}
+	return w;
+}
+
+/** scan type, class and ttl and printout, for rr */
+static int sldns_rr_tcttl_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w = 0;
+	uint16_t t, c;
+	uint32_t ttl;
+	if(*dl < 8) {
+		if(*dl < 4)
+			return w + print_remainder_hex("; Error malformed 0x",
+				d, dl, s, sl);
+		/* these print values or 0x.. if none left */
+		t = sldns_read_uint16(*d);
+		c = sldns_read_uint16((*d)+2);
+		(*d)+=4;
+		(*dl)-=4;
+		w += sldns_wire2str_class_print(s, sl, c);
+		w += sldns_str_print(s, sl, "\t");
+		w += sldns_wire2str_type_print(s, sl, t);
+		if(*dl == 0)
+			return w + sldns_str_print(s, sl, "; Error no ttl");
+		return w + print_remainder_hex(
+			"; Error malformed ttl 0x", d, dl, s, sl);
+	}
+	t = sldns_read_uint16(*d);
+	c = sldns_read_uint16((*d)+2);
+	ttl = sldns_read_uint32((*d)+4);
+	(*d)+=8;
+	(*dl)-=8;
+	w += sldns_str_print(s, sl, "%lu\t", (unsigned long)ttl);
+	w += sldns_wire2str_class_print(s, sl, c);
+	w += sldns_str_print(s, sl, "\t");
+	w += sldns_wire2str_type_print(s, sl, t);
+	return w;
+}
+
+int sldns_wire2str_rr_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen,
+	uint8_t* pkt, size_t pktlen)
+{
+	int w = 0;
+	uint8_t* rr = *d;
+	size_t rrlen = *dlen, dname_off, rdlen, ordlen;
+	uint16_t rrtype = 0;
+	
+	if(*dlen >= 3 && (*d)[0]==0 &&
+		sldns_read_uint16((*d)+1)==LDNS_RR_TYPE_OPT) {
+		/* perform EDNS OPT processing */
+		return sldns_wire2str_edns_scan(d, dlen, s, slen, pkt, pktlen);
+	}
+
+	/* try to scan the rdata with pretty-printing, but if that fails, then
+	 * scan the rdata as an unknown RR type */
+	w += sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
+	w += sldns_str_print(s, slen, "\t");
+	dname_off = rrlen-(*dlen);
+	if(*dlen == 4) {
+		/* like a question-RR */
+		uint16_t t = sldns_read_uint16(*d);
+		uint16_t c = sldns_read_uint16((*d)+2);
+		(*d)+=4;
+		(*dlen)-=4;
+		w += sldns_wire2str_class_print(s, slen, c);
+		w += sldns_str_print(s, slen, "\t");
+		w += sldns_wire2str_type_print(s, slen, t);
+		w += sldns_str_print(s, slen, " ; Error no ttl,rdata\n");
+		return w;
+	}
+	if(*dlen < 8) {
+		if(*dlen == 0)
+			return w + sldns_str_print(s, slen, ";Error missing RR\n");
+		w += print_remainder_hex(";Error partial RR 0x", d, dlen, s, slen);
+		return w + sldns_str_print(s, slen, "\n");
+	}
+	rrtype = sldns_read_uint16(*d);
+	w += sldns_rr_tcttl_scan(d, dlen, s, slen);
+	w += sldns_str_print(s, slen, "\t");
+
+	/* rdata */
+	if(*dlen < 2) {
+		if(*dlen == 0)
+			return w + sldns_str_print(s, slen, ";Error missing rdatalen\n");
+		w += print_remainder_hex(";Error missing rdatalen 0x",
+			d, dlen, s, slen);
+		return w + sldns_str_print(s, slen, "\n");
+	}
+	rdlen = sldns_read_uint16(*d);
+	ordlen = rdlen;
+	(*d)+=2;
+	(*dlen)-=2;
+	if(*dlen < rdlen) {
+		w += sldns_str_print(s, slen, "\\# %u ", (unsigned)rdlen);
+		if(*dlen == 0)
+			return w + sldns_str_print(s, slen, ";Error missing rdata\n");
+		w += print_remainder_hex(";Error partial rdata 0x", d, dlen, s, slen);
+		return w + sldns_str_print(s, slen, "\n");
+	}
+	w += sldns_wire2str_rdata_scan(d, &rdlen, s, slen, rrtype, pkt, pktlen);
+	(*dlen) -= (ordlen-rdlen);
+
+	/* default comment */
+	w += sldns_wire2str_rr_comment_print(s, slen, rr, rrlen, dname_off,
+		rrtype);
+	w += sldns_str_print(s, slen, "\n");
+	return w;
+}
+
+int sldns_wire2str_rrquestion_scan(uint8_t** d, size_t* dlen, char** s,
+	size_t* slen, uint8_t* pkt, size_t pktlen)
+{
+	int w = 0;
+	uint16_t t, c;
+	w += sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
+	w += sldns_str_print(s, slen, "\t");
+	if(*dlen < 4) {
+		if(*dlen == 0)
+			return w + sldns_str_print(s, slen, "Error malformed\n");
+		w += print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
+		return w + sldns_str_print(s, slen, "\n");
+	}
+	t = sldns_read_uint16(*d);
+	c = sldns_read_uint16((*d)+2);
+	(*d)+=4;
+	(*dlen)-=4;
+	w += sldns_wire2str_class_print(s, slen, c);
+	w += sldns_str_print(s, slen, "\t");
+	w += sldns_wire2str_type_print(s, slen, t);
+	w += sldns_str_print(s, slen, "\n");
+	return w;
+}
+
+int sldns_wire2str_rr_unknown_scan(uint8_t** d, size_t* dlen, char** s,
+	size_t* slen, uint8_t* pkt, size_t pktlen)
+{
+	size_t rdlen, ordlen;
+	int w = 0;
+	w += sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
+	w += sldns_str_print(s, slen, "\t");
+	w += sldns_rr_tcttl_scan(d, dlen, s, slen);
+	w += sldns_str_print(s, slen, "\t");
+	if(*dlen < 2) {
+		if(*dlen == 0)
+			return w + sldns_str_print(s, slen, ";Error missing rdatalen\n");
+		w += print_remainder_hex(";Error missing rdatalen 0x",
+			d, dlen, s, slen);
+		return w + sldns_str_print(s, slen, "\n");
+	}
+	rdlen = sldns_read_uint16(*d);
+	ordlen = rdlen;
+	(*d) += 2;
+	(*dlen) -= 2;
+	if(*dlen < rdlen) {
+		w += sldns_str_print(s, slen, "\\# %u ", (unsigned)rdlen);
+		if(*dlen == 0)
+			return w + sldns_str_print(s, slen, ";Error missing rdata\n");
+		w += print_remainder_hex(";Error partial rdata 0x", d, dlen, s, slen);
+		return w + sldns_str_print(s, slen, "\n");
+	}
+	w += sldns_wire2str_rdata_unknown_scan(d, &rdlen, s, slen);
+	(*dlen) -= (ordlen-rdlen);
+	w += sldns_str_print(s, slen, "\n");
+	return w;
+}
+
+/** print rr comment for type DNSKEY */
+static int rr_comment_dnskey(char** s, size_t* slen, uint8_t* rr,
+	size_t rrlen, size_t dname_off)
+{
+	size_t rdlen;
+	uint8_t* rdata;
+	int flags, w = 0;
+	if(rrlen < dname_off + 10) return 0;
+	rdlen = sldns_read_uint16(rr+dname_off+8);
+	if(rrlen < dname_off + 10 + rdlen) return 0;
+	rdata = rr + dname_off + 10;
+	flags = (int)sldns_read_uint16(rdata);
+	w += sldns_str_print(s, slen, " ;{");
+
+	/* id */
+	w += sldns_str_print(s, slen, "id = %u",
+		sldns_calc_keytag_raw(rdata, rdlen));
+
+	/* flags */
+	if((flags&LDNS_KEY_ZONE_KEY)) {
+		if((flags&LDNS_KEY_SEP_KEY))
+			w += sldns_str_print(s, slen, " (ksk)");
+		else 	w += sldns_str_print(s, slen, " (zsk)");
+	}
+
+	/* keysize */
+	if(rdlen > 4) {
+		w += sldns_str_print(s, slen, ", ");
+		w += sldns_str_print(s, slen, "size = %db",
+			(int)sldns_rr_dnskey_key_size_raw(
+			(unsigned char*)rdata+4, rdlen-4, (int)(rdata[3])));
+	}
+
+	w += sldns_str_print(s, slen, "}");
+	return w;
+}
+
+/** print rr comment for type RRSIG */
+static int rr_comment_rrsig(char** s, size_t* slen, uint8_t* rr,
+	size_t rrlen, size_t dname_off)
+{
+	size_t rdlen;
+	uint8_t* rdata;
+	if(rrlen < dname_off + 10) return 0;
+	rdlen = sldns_read_uint16(rr+dname_off+8);
+	if(rrlen < dname_off + 10 + rdlen) return 0;
+	rdata = rr + dname_off + 10;
+	if(rdlen < 18) return 0;
+	return sldns_str_print(s, slen, " ;{id = %d}",
+		(int)sldns_read_uint16(rdata+16));
+}
+
+/** print rr comment for type NSEC3 */
+static int rr_comment_nsec3(char** s, size_t* slen, uint8_t* rr,
+	size_t rrlen, size_t dname_off)
+{
+	size_t rdlen;
+	uint8_t* rdata;
+	int w = 0;
+	if(rrlen < dname_off + 10) return 0;
+	rdlen = sldns_read_uint16(rr+dname_off+8);
+	if(rrlen < dname_off + 10 + rdlen) return 0;
+	rdata = rr + dname_off + 10;
+	if(rdlen < 2) return 0;
+	if((rdata[1] & LDNS_NSEC3_VARS_OPTOUT_MASK))
+		w += sldns_str_print(s, slen, " ;{flags: optout}");
+	return w;
+}
+
+int sldns_wire2str_rr_comment_print(char** s, size_t* slen, uint8_t* rr,
+	size_t rrlen, size_t dname_off, uint16_t rrtype)
+{
+	if(rrtype == LDNS_RR_TYPE_DNSKEY) {
+		return rr_comment_dnskey(s, slen, rr, rrlen, dname_off);
+	} else if(rrtype == LDNS_RR_TYPE_RRSIG) {
+		return rr_comment_rrsig(s, slen, rr, rrlen, dname_off);
+	} else if(rrtype == LDNS_RR_TYPE_NSEC3) {
+		return rr_comment_nsec3(s, slen, rr, rrlen, dname_off);
+	}
+	return 0;
+}
+
+int sldns_wire2str_header_scan(uint8_t** d, size_t* dlen, char** s,
+	size_t* slen)
+{
+	int w = 0;
+	int opcode, rcode;
+	w += sldns_str_print(s, slen, ";; ->>HEADER<<- ");
+	if(*dlen == 0)
+		return w+sldns_str_print(s, slen, "Error empty packet");
+	if(*dlen < 4)
+		return w+print_remainder_hex("Error header too short 0x", d, dlen, s, slen);
+	opcode = (int)LDNS_OPCODE_WIRE(*d);
+	rcode = (int)LDNS_RCODE_WIRE(*d);
+	w += sldns_str_print(s, slen, "opcode: ");
+	w += sldns_wire2str_opcode_print(s, slen, opcode);
+	w += sldns_str_print(s, slen, ", ");
+	w += sldns_str_print(s, slen, "rcode: ");
+	w += sldns_wire2str_rcode_print(s, slen, rcode);
+	w += sldns_str_print(s, slen, ", ");
+	w += sldns_str_print(s, slen, "id: %d\n", (int)LDNS_ID_WIRE(*d));
+	w += sldns_str_print(s, slen, ";; flags:");
+	if(LDNS_QR_WIRE(*d)) w += sldns_str_print(s, slen, " qr");
+	if(LDNS_AA_WIRE(*d)) w += sldns_str_print(s, slen, " aa");
+	if(LDNS_TC_WIRE(*d)) w += sldns_str_print(s, slen, " tc");
+	if(LDNS_RD_WIRE(*d)) w += sldns_str_print(s, slen, " rd");
+	if(LDNS_CD_WIRE(*d)) w += sldns_str_print(s, slen, " cd");
+	if(LDNS_RA_WIRE(*d)) w += sldns_str_print(s, slen, " ra");
+	if(LDNS_AD_WIRE(*d)) w += sldns_str_print(s, slen, " ad");
+	if(LDNS_Z_WIRE(*d))  w += sldns_str_print(s, slen, " z");
+	w += sldns_str_print(s, slen, " ; ");
+	if(*dlen < LDNS_HEADER_SIZE)
+		return w+print_remainder_hex("Error header too short 0x", d, dlen, s, slen);
+	w += sldns_str_print(s, slen, "QUERY: %d, ", (int)LDNS_QDCOUNT(*d));
+	w += sldns_str_print(s, slen, "ANSWER: %d, ", (int)LDNS_ANCOUNT(*d));
+	w += sldns_str_print(s, slen, "AUTHORITY: %d, ", (int)LDNS_NSCOUNT(*d));
+	w += sldns_str_print(s, slen, "ADDITIONAL: %d ", (int)LDNS_ARCOUNT(*d));
+	*d += LDNS_HEADER_SIZE;
+	*dlen -= LDNS_HEADER_SIZE;
+	return w;
+}
+
+int sldns_wire2str_rdata_scan(uint8_t** d, size_t* dlen, char** s,
+	size_t* slen, uint16_t rrtype, uint8_t* pkt, size_t pktlen)
+{
+	/* try to prettyprint, but if that fails, use unknown format */
+	uint8_t* origd = *d;
+	char* origs = *s;
+	size_t origdlen = *dlen, origslen = *slen;
+	uint16_t r_cnt, r_max;
+	sldns_rdf_type rdftype;
+	int w = 0, n;
+
+	const sldns_rr_descriptor *desc = sldns_rr_descript(rrtype);
+	if(!desc) /* unknown format */
+		return sldns_wire2str_rdata_unknown_scan(d, dlen, s, slen);
+	/* dlen equals the rdatalen for the rdata */
+
+	r_max = sldns_rr_descriptor_maximum(desc);
+	for(r_cnt=0; r_cnt < r_max; r_cnt++) {
+		if(*dlen == 0) {
+			if(r_cnt < sldns_rr_descriptor_minimum(desc))
+				goto failed;
+			break; /* nothing more to print */
+		}
+		rdftype = sldns_rr_descriptor_field_type(desc, r_cnt);
+		if(r_cnt != 0)
+			w += sldns_str_print(s, slen, " ");
+		n = sldns_wire2str_rdf_scan(d, dlen, s, slen, rdftype,
+			pkt, pktlen);
+		if(n == -1) {
+		failed:
+			/* failed, use unknown format */
+			*d = origd; *s = origs;
+			*dlen = origdlen; *slen = origslen;
+			return sldns_wire2str_rdata_unknown_scan(d, dlen,
+				s, slen);
+		}
+		w += n;
+	}
+	return w;
+}
+
+int sldns_wire2str_rdata_unknown_scan(uint8_t** d, size_t* dlen, char** s,
+	size_t* slen)
+{
+	int w = 0;
+
+	/* print length */
+	w += sldns_str_print(s, slen, "\\# %u", (unsigned)*dlen);
+
+	/* print rdlen in hex */
+	if(*dlen != 0)
+		w += sldns_str_print(s, slen, " ");
+	w += print_hex_buf(s, slen, *d, *dlen);
+	(*d) += *dlen;
+	(*dlen) = 0;
+	return w;
+}
+
+/** print and escape one character for a domain dname */
+static int dname_char_print(char** s, size_t* slen, uint8_t c)
+{
+	if(c == '.' || c == ';' || c == '(' || c == ')' || c == '\\')
+		return sldns_str_print(s, slen, "\\%c", c);
+	else if(!(isascii((unsigned char)c) && isgraph((unsigned char)c)))
+		return sldns_str_print(s, slen, "\\%03u", (unsigned)c);
+	/* plain printout */
+	if(*slen) {
+		**s = (char)c;
+		(*s)++;
+		(*slen)--;
+	}
+	return 1;
+}
+
+int sldns_wire2str_dname_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen,
+	uint8_t* pkt, size_t pktlen)
+{
+	int w = 0;
+	/* spool labels onto the string, use compression if its there */
+	uint8_t* pos = *d;
+	unsigned i, counter=0;
+	const unsigned maxcompr = 1000; /* loop detection, max compr ptrs */
+	int in_buf = 1;
+	if(*dlen == 0) return sldns_str_print(s, slen, "ErrorMissingDname");
+	if(*pos == 0) {
+		(*d)++;
+		(*dlen)--;
+		return sldns_str_print(s, slen, ".");
+	}
+	while(*pos) {
+		/* read label length */
+		uint8_t labellen = *pos++;
+		if(in_buf) { (*d)++; (*dlen)--; }
+
+		/* find out what sort of label we have */
+		if((labellen&0xc0) == 0xc0) {
+			/* compressed */
+			uint16_t target = 0;
+			if(in_buf && *dlen == 0)
+				return w + sldns_str_print(s, slen,
+					"ErrorPartialDname");
+			else if(!in_buf && pos+1 > pkt+pktlen)
+				return w + sldns_str_print(s, slen,
+					"ErrorPartialDname");
+			target = ((labellen&0x3f)<<8) | *pos;
+			if(in_buf) { (*d)++; (*dlen)--; }
+			/* move to target, if possible */
+			if(!pkt || target >= pktlen)
+				return w + sldns_str_print(s, slen,
+					"ErrorComprPtrOutOfBounds");
+			if(counter++ > maxcompr)
+				return w + sldns_str_print(s, slen,
+					"ErrorComprPtrLooped");
+			in_buf = 0;
+			pos = pkt+target;
+			continue;
+		} else if((labellen&0xc0)) {
+			/* notimpl label type */
+			w += sldns_str_print(s, slen,
+				"ErrorLABELTYPE%xIsUnknown",
+				(int)(labellen&0xc0));
+			return w;
+		}
+
+		/* spool label characters, end with '.' */
+		if(in_buf && *dlen < labellen) labellen = *dlen;
+		else if(!in_buf && pos+labellen > pkt+pktlen)
+			labellen = (uint8_t)(pkt + pktlen - pos);
+		for(i=0; i<(unsigned)labellen; i++) {
+			w += dname_char_print(s, slen, *pos++);
+		}
+		if(in_buf) {
+			(*d) += labellen;
+			(*dlen) -= labellen;
+			if(*dlen == 0) break;
+		}
+		w += sldns_str_print(s, slen, ".");
+	}
+	/* skip over final root label */
+	if(in_buf && *dlen > 0) { (*d)++; (*dlen)--; }
+	/* in case we printed no labels, terminate dname */
+	if(w == 0) w += sldns_str_print(s, slen, ".");
+	return w;
+}
+
+int sldns_wire2str_opcode_print(char** s, size_t* slen, int opcode)
+{
+	sldns_lookup_table *lt = sldns_lookup_by_id(sldns_opcodes, opcode);
+	if (lt && lt->name) {
+		return sldns_str_print(s, slen, "%s", lt->name);
+	}
+	return sldns_str_print(s, slen, "OPCODE%u", (unsigned)opcode);
+}
+
+int sldns_wire2str_rcode_print(char** s, size_t* slen, int rcode)
+{
+	sldns_lookup_table *lt = sldns_lookup_by_id(sldns_rcodes, rcode);
+	if (lt && lt->name) {
+		return sldns_str_print(s, slen, "%s", lt->name);
+	}
+	return sldns_str_print(s, slen, "RCODE%u", (unsigned)rcode);
+}
+
+int sldns_wire2str_class_print(char** s, size_t* slen, uint16_t rrclass)
+{
+	sldns_lookup_table *lt = sldns_lookup_by_id(sldns_rr_classes,
+		(int)rrclass);
+	if (lt && lt->name) {
+		return sldns_str_print(s, slen, "%s", lt->name);
+	}
+	return sldns_str_print(s, slen, "CLASS%u", (unsigned)rrclass);
+}
+
+int sldns_wire2str_type_print(char** s, size_t* slen, uint16_t rrtype)
+{
+	const sldns_rr_descriptor *descriptor = sldns_rr_descript(rrtype);
+	if (descriptor && descriptor->_name) {
+		return sldns_str_print(s, slen, "%s", descriptor->_name);
+	}
+	return sldns_str_print(s, slen, "TYPE%u", (unsigned)rrtype);
+}
+
+int sldns_wire2str_edns_option_code_print(char** s, size_t* slen,
+	uint16_t opcode)
+{
+	sldns_lookup_table *lt = sldns_lookup_by_id(sldns_edns_options,
+		(int)opcode);
+	if (lt && lt->name) {
+		return sldns_str_print(s, slen, "%s", lt->name);
+	}
+	return sldns_str_print(s, slen, "OPT%u", (unsigned)opcode);
+}
+
+int sldns_wire2str_class_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
+{
+	uint16_t c;
+	if(*dlen == 0) return 0;
+	if(*dlen < 2) return print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
+	c = sldns_read_uint16(*d);
+	(*d)+=2;
+	(*dlen)-=2;
+	return sldns_wire2str_class_print(s, slen, c);
+}
+
+int sldns_wire2str_type_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
+{
+	uint16_t t;
+	if(*dlen == 0) return 0;
+	if(*dlen < 2) return print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
+	t = sldns_read_uint16(*d);
+	(*d)+=2;
+	(*dlen)-=2;
+	return sldns_wire2str_type_print(s, slen, t);
+}
+
+int sldns_wire2str_ttl_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
+{
+	uint32_t ttl;
+	if(*dlen == 0) return 0;
+	if(*dlen < 4) return print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
+	ttl = sldns_read_uint32(*d);
+	(*d)+=4;
+	(*dlen)-=4;
+	return sldns_str_print(s, slen, "%u", (unsigned)ttl);
+}
+
+int sldns_wire2str_rdf_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen,
+	int rdftype, uint8_t* pkt, size_t pktlen)
+{
+	if(*dlen == 0) return 0;
+	switch(rdftype) {
+	case LDNS_RDF_TYPE_NONE:
+		return 0;
+	case LDNS_RDF_TYPE_DNAME:
+		return sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
+	case LDNS_RDF_TYPE_INT8:
+		return sldns_wire2str_int8_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_INT16:
+		return sldns_wire2str_int16_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_INT32:
+		return sldns_wire2str_int32_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_PERIOD:
+		return sldns_wire2str_period_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_TSIGTIME:
+		return sldns_wire2str_tsigtime_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_A:
+		return sldns_wire2str_a_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_AAAA:
+		return sldns_wire2str_aaaa_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_STR:
+		return sldns_wire2str_str_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_APL:
+		return sldns_wire2str_apl_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_B32_EXT:
+		return sldns_wire2str_b32_ext_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_B64:
+		return sldns_wire2str_b64_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_HEX:
+		return sldns_wire2str_hex_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_NSEC:
+		return sldns_wire2str_nsec_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_NSEC3_SALT:
+		return sldns_wire2str_nsec3_salt_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_TYPE:
+		return sldns_wire2str_type_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_CLASS:
+		return sldns_wire2str_class_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_CERT_ALG:
+		return sldns_wire2str_cert_alg_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_ALG:
+		return sldns_wire2str_alg_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_UNKNOWN:
+		return sldns_wire2str_unknown_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_TIME:
+		return sldns_wire2str_time_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_LOC:
+		return sldns_wire2str_loc_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_WKS:
+	case LDNS_RDF_TYPE_SERVICE:
+		return sldns_wire2str_wks_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_NSAP:
+		return sldns_wire2str_nsap_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_ATMA:
+		return sldns_wire2str_atma_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_IPSECKEY:
+		return sldns_wire2str_ipseckey_scan(d, dlen, s, slen, pkt,
+			pktlen);
+	case LDNS_RDF_TYPE_HIP:
+		return sldns_wire2str_hip_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_INT16_DATA:
+		return sldns_wire2str_int16_data_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_NSEC3_NEXT_OWNER:
+		return sldns_wire2str_b32_ext_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_ILNP64:
+		return sldns_wire2str_ilnp64_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_EUI48:
+		return sldns_wire2str_eui48_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_EUI64:
+		return sldns_wire2str_eui64_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_TAG:
+		return sldns_wire2str_tag_scan(d, dlen, s, slen);
+	case LDNS_RDF_TYPE_LONG_STR:
+		return sldns_wire2str_long_str_scan(d, dlen, s, slen);
+	}
+	/* unknown rdf type */
+	return -1;
+}
+
+int sldns_wire2str_int8_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 1) return -1;
+	w = sldns_str_print(s, sl, "%u", (unsigned)**d);
+	(*d)++;
+	(*dl)--;
+	return w;
+}
+
+int sldns_wire2str_int16_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 2) return -1;
+	w = sldns_str_print(s, sl, "%lu", (unsigned long)sldns_read_uint16(*d));
+	(*d)+=2;
+	(*dl)-=2;
+	return w;
+}
+
+int sldns_wire2str_int32_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 4) return -1;
+	w = sldns_str_print(s, sl, "%lu", (unsigned long)sldns_read_uint32(*d));
+	(*d)+=4;
+	(*dl)-=4;
+	return w;
+}
+
+int sldns_wire2str_period_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 4) return -1;
+	w = sldns_str_print(s, sl, "%u", (unsigned)sldns_read_uint32(*d));
+	(*d)+=4;
+	(*dl)-=4;
+	return w;
+}
+
+int sldns_wire2str_tsigtime_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	/* tsigtime is 48 bits network order unsigned integer */
+	int w;
+	uint64_t tsigtime = 0;
+	uint64_t d0, d1, d2, d3, d4, d5;
+	if(*dl < 6) return -1;
+	d0 = (*d)[0]; /* cast to uint64 for shift operations */
+	d1 = (*d)[1];
+	d2 = (*d)[2];
+	d3 = (*d)[3];
+	d4 = (*d)[4];
+	d5 = (*d)[5];
+	tsigtime = (d0<<40) | (d1<<32) | (d2<<24) | (d3<<16) | (d4<<8) | d5;
+#ifndef USE_WINSOCK
+	w = sldns_str_print(s, sl, "%llu", (long long)tsigtime);
+#else
+	w = sldns_str_print(s, sl, "%I64u", (long long)tsigtime);
+#endif
+	(*d)+=6;
+	(*dl)-=6;
+	return w;
+}
+
+int sldns_wire2str_a_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	char buf[32];
+	int w;
+	if(*dl < 4) return -1;
+	if(!inet_ntop(AF_INET, *d, buf, (socklen_t)sizeof(buf)))
+		return -1;
+	w = sldns_str_print(s, sl, "%s", buf);
+	(*d)+=4;
+	(*dl)-=4;
+	return w;
+}
+
+int sldns_wire2str_aaaa_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+#ifdef AF_INET6
+	char buf[64];
+	int w;
+	if(*dl < 16) return -1;
+	if(!inet_ntop(AF_INET6, *d, buf, (socklen_t)sizeof(buf)))
+		return -1;
+	w = sldns_str_print(s, sl, "%s", buf);
+	(*d)+=16;
+	(*dl)-=16;
+	return w;
+#else
+	return -1;
+#endif
+}
+
+/** printout escaped TYPE_STR character */
+static int str_char_print(char** s, size_t* sl, uint8_t c)
+{
+	if(isprint((unsigned char)c) || c == '\t') {
+		if(c == '\"' || c == '\\')
+			return sldns_str_print(s, sl, "\\%c", c);
+		if(*sl) {
+			**s = (char)c;
+			(*s)++;
+			(*sl)--;
+		}
+		return 1;
+	}
+	return sldns_str_print(s, sl, "\\%03u", (unsigned)c);
+}
+
+int sldns_wire2str_str_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w = 0;
+	size_t i, len;
+	if(*dl < 1) return -1;
+	len = **d;
+	if(*dl < 1+len) return -1;
+	(*d)++;
+	(*dl)--;
+	w += sldns_str_print(s, sl, "\"");
+	for(i=0; i<len; i++)
+		w += str_char_print(s, sl, (*d)[i]);
+	w += sldns_str_print(s, sl, "\"");
+	(*d)+=len;
+	(*dl)-=len;
+	return w;
+}
+
+int sldns_wire2str_apl_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int i, w = 0;
+	uint16_t family;
+	uint8_t negation, prefix, adflength;
+	if(*dl < 4) return -1;
+	family = sldns_read_uint16(*d);
+	prefix = (*d)[2];
+	negation = ((*d)[3] & LDNS_APL_NEGATION);
+	adflength = ((*d)[3] & LDNS_APL_MASK);
+	if(*dl < 4+(size_t)adflength) return -1;
+	if(family != LDNS_APL_IP4 && family != LDNS_APL_IP6)
+		return -1; /* unknown address family */
+	if(negation)
+		w += sldns_str_print(s, sl, "!");
+	w += sldns_str_print(s, sl, "%u:", (unsigned)family);
+	if(family == LDNS_APL_IP4) {
+		/* check if prefix <32 ? */
+		/* address is variable length 0 - 4 */
+		for(i=0; i<4; i++) {
+			if(i > 0)
+				w += sldns_str_print(s, sl, ".");
+			if(i < (int)adflength)
+				w += sldns_str_print(s, sl, "%d", (*d)[4+i]);
+			else	w += sldns_str_print(s, sl, "0");
+		}
+	} else if(family == LDNS_APL_IP6) {
+		/* check if prefix <128 ? */
+		/* address is variable length 0 - 16 */
+		for(i=0; i<16; i++) {
+			if(i%2 == 0 && i>0)
+				w += sldns_str_print(s, sl, ":");
+			if(i < (int)adflength)
+				w += sldns_str_print(s, sl, "%02x", (*d)[4+i]);
+			else	w += sldns_str_print(s, sl, "00");
+		}
+	}
+	w += sldns_str_print(s, sl, "/%u", (unsigned)prefix);
+	(*d) += 4+adflength;
+	(*dl) -= 4+adflength;
+	return w;
+}
+
+int sldns_wire2str_b32_ext_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	size_t datalen;
+	size_t sz;
+	if(*dl < 1) return -1;
+	datalen = (*d)[0];
+	if(*dl < 1+datalen) return -1;
+	sz = sldns_b32_ntop_calculate_size(datalen);
+	if(*sl < sz+1) {
+		(*d) += datalen+1;
+		(*dl) -= (datalen+1);
+		return (int)sz; /* out of space really, but would need buffer
+			in order to truncate the output */
+	}
+	sldns_b32_ntop_extended_hex((*d)+1, datalen, *s, *sl);
+	(*d) += datalen+1;
+	(*dl) -= (datalen+1);
+	(*s) += sz;
+	(*sl) -= sz;
+	return (int)sz;
+}
+
+/** scan number of bytes from wire into b64 presentation format */
+static int sldns_wire2str_b64_scan_num(uint8_t** d, size_t* dl, char** s,
+	size_t* sl, size_t num)
+{
+	/* b64_ntop_calculate size includes null at the end */
+	size_t sz = sldns_b64_ntop_calculate_size(num)-1;
+	if(*sl < sz+1) {
+		(*d) += num;
+		(*dl) -= num;
+		return (int)sz; /* out of space really, but would need buffer
+			in order to truncate the output */
+	}
+	sldns_b64_ntop(*d, num, *s, *sl);
+	(*d) += num;
+	(*dl) -= num;
+	(*s) += sz;
+	(*sl) -= sz;
+	return (int)sz;
+}
+
+int sldns_wire2str_b64_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	return sldns_wire2str_b64_scan_num(d, dl, s, sl, *dl);
+}
+
+int sldns_wire2str_hex_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	return print_remainder_hex("", d, dl, s, sl);
+}
+
+int sldns_wire2str_nsec_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	uint8_t* p = *d;
+	size_t pl = *dl;
+	unsigned i, bit, window, block_len;
+	uint16_t t;
+	int w = 0;
+	
+	/* check for errors */
+	while(pl) {
+		if(pl < 2) return -1;
+		block_len = (unsigned)p[1];
+		if(pl < 2+block_len) return -1;
+		p += block_len+2;
+		pl -= block_len+2;
+	}
+
+	/* do it */
+	p = *d;
+	pl = *dl;
+	while(pl) {
+		if(pl < 2) return -1; /* cannot happen */
+		window = (unsigned)p[0];
+		block_len = (unsigned)p[1];
+		if(pl < 2+block_len) return -1; /* cannot happen */
+		p += 2;
+		for(i=0; i<block_len; i++) {
+			if(p[i] == 0) continue;
+			/* base type number for this octet */
+			t = ((window)<<8) | (i << 3);
+			for(bit=0; bit<8; bit++) {
+				if((p[i]&(0x80>>bit))) {
+					if(w) w += sldns_str_print(s, sl, " ");
+					w += sldns_wire2str_type_print(s, sl,
+						t+bit);
+				}
+			}
+		}
+		p += block_len;
+		pl -= block_len+2;
+	}
+	(*d) += *dl;
+	(*dl) = 0;
+	return w;
+}
+
+int sldns_wire2str_nsec3_salt_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	size_t salt_len;
+	int w;
+	if(*dl < 1) return -1;
+	salt_len = (size_t)(*d)[0];
+	if(*dl < 1+salt_len) return -1;
+	(*d)++;
+	(*dl)--;
+	if(salt_len == 0) {
+		return sldns_str_print(s, sl, "-");
+	}
+	w = print_hex_buf(s, sl, *d, salt_len);
+	(*dl)-=salt_len;
+	(*d)+=salt_len;
+	return w;
+}
+
+int sldns_wire2str_cert_alg_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	sldns_lookup_table *lt;
+	int data, w;
+	if(*dl < 2) return -1;
+	data = (int)sldns_read_uint16(*d);
+	lt = sldns_lookup_by_id(sldns_cert_algorithms, data);
+	if(lt && lt->name)
+		w = sldns_str_print(s, sl, "%s", lt->name);
+	else 	w = sldns_str_print(s, sl, "%d", data);
+	(*dl)-=2;
+	(*d)+=2;
+	return w;
+}
+
+int sldns_wire2str_alg_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	/* don't use algorithm mnemonics in the presentation format
+	 * this kind of got sneaked into the rfc's */
+	return sldns_wire2str_int8_scan(d, dl, s, sl);
+}
+
+int sldns_wire2str_unknown_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	return sldns_wire2str_rdata_unknown_scan(d, dl, s, sl);
+}
+
+int sldns_wire2str_time_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	/* create a YYYYMMDDHHMMSS string if possible */
+	struct tm tm;
+	char date_buf[16];
+	uint32_t t;
+	memset(&tm, 0, sizeof(tm));
+	if(*dl < 4) return -1;
+	t = sldns_read_uint32(*d);
+	date_buf[15]=0;
+	if(sldns_serial_arithmitics_gmtime_r(t, time(NULL), &tm) &&
+		strftime(date_buf, 15, "%Y%m%d%H%M%S", &tm)) {
+		(*d) += 4;
+		(*dl) -= 4;
+		return sldns_str_print(s, sl, "%s", date_buf);
+	}
+	return -1;
+}
+
+static int
+loc_cm_print(char** str, size_t* sl, uint8_t mantissa, uint8_t exponent)
+{
+	int w = 0;
+	uint8_t i;
+	/* is it 0.<two digits> ? */
+	if(exponent < 2) {
+		if(exponent == 1)
+			mantissa *= 10;
+		return sldns_str_print(str, sl, "0.%02ld", (long)mantissa);
+	}
+	/* always <digit><string of zeros> */
+	w += sldns_str_print(str, sl, "%d", (int)mantissa);
+	for(i=0; i<exponent-2; i++)
+		w += sldns_str_print(str, sl, "0");
+	return w;
+}
+
+int sldns_wire2str_loc_scan(uint8_t** d, size_t* dl, char** str, size_t* sl)
+{
+	/* we could do checking (ie degrees < 90 etc)? */
+	uint8_t version;
+	uint8_t size;
+	uint8_t horizontal_precision;
+	uint8_t vertical_precision;
+	uint32_t longitude;
+	uint32_t latitude;
+	uint32_t altitude;
+	char northerness;
+	char easterness;
+	uint32_t h;
+	uint32_t m;
+	double s;
+	uint32_t equator = (uint32_t)1 << 31; /* 2**31 */
+	int w = 0;
+
+	if(*dl < 16) return -1;
+	version = (*d)[0];
+	if(version != 0)
+		return sldns_wire2str_hex_scan(d, dl, str, sl);
+	size = (*d)[1];
+	horizontal_precision = (*d)[2];
+	vertical_precision = (*d)[3];
+
+	latitude = sldns_read_uint32((*d)+4);
+	longitude = sldns_read_uint32((*d)+8);
+	altitude = sldns_read_uint32((*d)+12);
+
+	if (latitude > equator) {
+		northerness = 'N';
+		latitude = latitude - equator;
+	} else {
+		northerness = 'S';
+		latitude = equator - latitude;
+	}
+	h = latitude / (1000 * 60 * 60);
+	latitude = latitude % (1000 * 60 * 60);
+	m = latitude / (1000 * 60);
+	latitude = latitude % (1000 * 60);
+	s = (double) latitude / 1000.0;
+	w += sldns_str_print(str, sl, "%02u %02u %06.3f %c ",
+		h, m, s, northerness);
+
+	if (longitude > equator) {
+		easterness = 'E';
+		longitude = longitude - equator;
+	} else {
+		easterness = 'W';
+		longitude = equator - longitude;
+	}
+	h = longitude / (1000 * 60 * 60);
+	longitude = longitude % (1000 * 60 * 60);
+	m = longitude / (1000 * 60);
+	longitude = longitude % (1000 * 60);
+	s = (double) longitude / (1000.0);
+	w += sldns_str_print(str, sl, "%02u %02u %06.3f %c ",
+		h, m, s, easterness);
+
+	s = ((double) altitude) / 100;
+	s -= 100000;
+
+	if(altitude%100 != 0)
+		w += sldns_str_print(str, sl, "%.2f", s);
+	else
+		w += sldns_str_print(str, sl, "%.0f", s);
+
+	w += sldns_str_print(str, sl, "m ");
+
+	w += loc_cm_print(str, sl, (size & 0xf0) >> 4, size & 0x0f);
+	w += sldns_str_print(str, sl, "m ");
+
+	w += loc_cm_print(str, sl, (horizontal_precision & 0xf0) >> 4,
+		horizontal_precision & 0x0f);
+	w += sldns_str_print(str, sl, "m ");
+
+	w += loc_cm_print(str, sl, (vertical_precision & 0xf0) >> 4,
+		vertical_precision & 0x0f);
+	w += sldns_str_print(str, sl, "m");
+
+	(*d)+=16;
+	(*dl)-=16;
+	return w;
+}
+
+int sldns_wire2str_wks_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	/* protocol, followed by bitmap of services */
+	const char* proto_name = NULL;
+	struct protoent *protocol;
+	struct servent *service;
+	uint8_t protocol_nr;
+	int bit, port, w = 0;
+	size_t i;
+	/* we cannot print with strings because they
+	 * are not portable, the presentation format may
+	 * not be able to be read in on another computer.  */
+	int print_symbols = 0;
+
+	/* protocol */
+	if(*dl < 1) return -1;
+	protocol_nr = (*d)[0];
+	(*d)++;
+	(*dl)--;
+	protocol = getprotobynumber((int)protocol_nr);
+	if(protocol && (protocol->p_name != NULL)) {
+		w += sldns_str_print(s, sl, "%s", protocol->p_name);
+		proto_name = protocol->p_name;
+	} else	{
+		w += sldns_str_print(s, sl, "%u", (unsigned)protocol_nr);
+	}
+
+	for(i=0; i<*dl; i++) {
+		if((*d)[i] == 0)
+			continue;
+		for(bit=0; bit<8; bit++) {
+			if(!(((*d)[i])&(0x80>>bit)))
+				continue;
+			port = (int)i*8 + bit;
+
+			if(!print_symbols)
+				service = NULL;
+			else
+				service = getservbyport(
+					(int)htons((uint16_t)port), proto_name);
+			if(service && service->s_name)
+				w += sldns_str_print(s, sl, " %s",
+					service->s_name);
+			else 	w += sldns_str_print(s, sl, " %u",
+					(unsigned)port);
+		}
+	}
+
+#ifdef HAVE_ENDSERVENT
+	endservent();
+#endif
+#ifdef HAVE_ENDPROTOENT
+        endprotoent();
+#endif
+	(*d) += *dl;
+	(*dl) = 0;
+	return w;
+}
+
+int sldns_wire2str_nsap_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	return print_remainder_hex("0x", d, dl, s, sl);
+}
+
+int sldns_wire2str_atma_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	return print_remainder_hex("", d, dl, s, sl);
+}
+
+/* internal scan routine that can modify arguments on failure */
+static int sldns_wire2str_ipseckey_scan_internal(uint8_t** d, size_t* dl,
+	char** s, size_t* sl, uint8_t* pkt, size_t pktlen)
+{
+	/* http://www.ietf.org/internet-drafts/draft-ietf-ipseckey-rr-12.txt*/
+	uint8_t precedence, gateway_type, algorithm;
+	int w = 0;
+
+	if(*dl < 3) return -1;
+	precedence = (*d)[0];
+	gateway_type = (*d)[1];
+	algorithm = (*d)[2];
+	if(gateway_type > 3)
+		return -1; /* unknown */
+	(*d)+=3;
+	(*dl)-=3;
+	w += sldns_str_print(s, sl, "%d %d %d ",
+		(int)precedence, (int)gateway_type, (int)algorithm);
+
+	switch(gateway_type) {
+	case 0: /* no gateway */
+		w += sldns_str_print(s, sl, ".");
+		break;
+	case 1: /* ip4 */
+		w += sldns_wire2str_a_scan(d, dl, s, sl);
+		break;
+	case 2: /* ip6 */
+		w += sldns_wire2str_aaaa_scan(d, dl, s, sl);
+		break;
+	case 3: /* dname */
+		w += sldns_wire2str_dname_scan(d, dl, s, sl, pkt, pktlen);
+		break;
+	default: /* unknown */
+		return -1;
+	}
+
+	if(*dl < 1)
+		return -1;
+	w += sldns_str_print(s, sl, " ");
+	w += sldns_wire2str_b64_scan_num(d, dl, s, sl, *dl);
+	return w;
+}
+
+int sldns_wire2str_ipseckey_scan(uint8_t** d, size_t* dl, char** s, size_t* sl,
+	uint8_t* pkt, size_t pktlen)
+{
+	uint8_t* od = *d;
+	char* os = *s;
+	size_t odl = *dl, osl = *sl;
+	int w=sldns_wire2str_ipseckey_scan_internal(d, dl, s, sl, pkt, pktlen);
+	if(w == -1) {
+		*d = od;
+		*s = os;
+		*dl = odl;
+		*sl = osl;
+		return -1;
+	}
+	return w;
+}
+
+int sldns_wire2str_hip_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	uint8_t algo, hitlen;
+	uint16_t pklen;
+
+	/* read lengths */
+	if(*dl < 4)
+		return -1;
+	hitlen = (*d)[0];
+	algo = (*d)[1];
+	pklen = sldns_read_uint16((*d)+2);
+	if(*dl < (size_t)4 + (size_t)hitlen + (size_t)pklen)
+		return -1;
+
+	/* write: algo hit pubkey */
+	w = sldns_str_print(s, sl, "%u ", (unsigned)algo);
+	w += print_hex_buf(s, sl, (*d)+4, hitlen);
+	w += sldns_str_print(s, sl, " ");
+	(*d)+=4+hitlen;
+	(*dl)-= (4+hitlen);
+	w += sldns_wire2str_b64_scan_num(d, dl, s, sl, pklen);
+	return w;
+}
+
+int sldns_wire2str_int16_data_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	uint16_t n;
+	if(*dl < 2)
+		return -1;
+	n = sldns_read_uint16(*d);
+	if(*dl < 2+(size_t)n)
+		return -1;
+	(*d)+=2;
+	(*dl)-=2;
+	return sldns_wire2str_b64_scan_num(d, dl, s, sl, n);
+}
+
+int sldns_wire2str_nsec3_next_owner_scan(uint8_t** d, size_t* dl, char** s,
+	size_t* sl)
+{
+	return sldns_wire2str_b32_ext_scan(d, dl, s, sl);
+}
+
+int sldns_wire2str_ilnp64_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 8)
+		return -1;
+	w = sldns_str_print(s, sl, "%.4x:%.4x:%.4x:%.4x",
+		sldns_read_uint16(*d), sldns_read_uint16((*d)+2),
+		sldns_read_uint16((*d)+4), sldns_read_uint16((*d)+6));
+	(*d)+=8;
+	(*dl)-=8;
+	return w;
+}
+
+int sldns_wire2str_eui48_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 6)
+		return -1;
+	w = sldns_str_print(s, sl, "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x",
+		(*d)[0], (*d)[1], (*d)[2], (*d)[3], (*d)[4], (*d)[5]);
+	(*d)+=6;
+	(*dl)-=6;
+	return w;
+}
+
+int sldns_wire2str_eui64_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	int w;
+	if(*dl < 8)
+		return -1;
+	w = sldns_str_print(s, sl, "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x-%.2x-%.2x",
+		(*d)[0], (*d)[1], (*d)[2], (*d)[3], (*d)[4], (*d)[5],
+		(*d)[6], (*d)[7]);
+	(*d)+=8;
+	(*dl)-=8;
+	return w;
+}
+
+int sldns_wire2str_tag_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	size_t i, n;
+	int w = 0;
+	if(*dl < 1)
+		return -1;
+	n = (size_t)((*d)[0]);
+	if(*dl < 1+n)
+		return -1;
+	for(i=0; i<n; i++)
+		if(!isalnum((unsigned char)(*d)[i]))
+			return -1;
+	for(i=0; i<n; i++)
+		w += sldns_str_print(s, sl, "%c", (char)(*d)[i]);
+	(*d)+=n+1;
+	(*dl)-=(n+1);
+	return w;
+}
+
+int sldns_wire2str_long_str_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
+{
+	size_t i;
+	int w = 0;
+	w += sldns_str_print(s, sl, "\"");
+	for(i=0; i<*dl; i++)
+		w += str_char_print(s, sl, (*d)[i]);
+	w += sldns_str_print(s, sl, "\"");
+	(*d)+=*dl;
+	(*dl)=0;
+	return w;
+}
+
+int sldns_wire2str_edns_llq_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	/* LLQ constants */
+	const char* llq_errors[] = {"NO-ERROR", "SERV-FULL", "STATIC",
+		"FORMAT-ERR", "NO-SUCH-LLQ", "BAD-VERS", "UNKNOWN_ERR"};
+	const unsigned int llq_errors_num = 7;
+	const char* llq_opcodes[] = {"LLQ-SETUP", "LLQ-REFRESH", "LLQ-EVENT"};
+	const unsigned int llq_opcodes_num = 3;
+	uint16_t version, llq_opcode, error_code;
+	uint64_t llq_id;
+	uint32_t lease_life; /* Requested or granted life of LLQ, in seconds */
+	int w = 0;
+
+	/* read the record */
+	if(len != 18) {
+		w += sldns_str_print(s, sl, "malformed LLQ ");
+		w += print_hex_buf(s, sl, data, len);
+		return w;
+	}
+	version = sldns_read_uint16(data);
+	llq_opcode = sldns_read_uint16(data+2);
+	error_code = sldns_read_uint16(data+4);
+	memmove(&llq_id, data+6, sizeof(llq_id));
+	lease_life = sldns_read_uint32(data+14);
+
+	/* print it */
+	w += sldns_str_print(s, sl, "v%d ", (int)version);
+	if(llq_opcode < llq_opcodes_num)
+		w += sldns_str_print(s, sl, "%s", llq_opcodes[llq_opcode]);
+	else	w += sldns_str_print(s, sl, "opcode %d", (int)llq_opcode);
+	if(error_code < llq_errors_num)
+		w += sldns_str_print(s, sl, " %s", llq_errors[error_code]);
+	else	w += sldns_str_print(s, sl, " error %d", (int)error_code);
+#ifndef USE_WINSOCK
+	w += sldns_str_print(s, sl, " id %llx lease-life %lu",
+		(unsigned long long)llq_id, (unsigned long)lease_life);
+#else
+	w += sldns_str_print(s, sl, " id %I64x lease-life %lu",
+		(unsigned long long)llq_id, (unsigned long)lease_life);
+#endif
+	return w;
+}
+
+int sldns_wire2str_edns_ul_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	uint32_t lease;
+	int w = 0;
+	if(len != 4) {
+		w += sldns_str_print(s, sl, "malformed UL ");
+		w += print_hex_buf(s, sl, data, len);
+		return w;
+	}
+	lease = sldns_read_uint32(data);
+	w += sldns_str_print(s, sl, "lease %lu", (unsigned long)lease);
+	return w;
+}
+
+int sldns_wire2str_edns_nsid_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	int w = 0;
+	size_t i, printed=0;
+	w += print_hex_buf(s, sl, data, len);
+	for(i=0; i<len; i++) {
+		if(isprint((unsigned char)data[i]) || data[i] == '\t') {
+			if(!printed) {
+				w += sldns_str_print(s, sl, " (");
+				printed = 1;
+			}
+			w += sldns_str_print(s, sl, "%c", (char)data[i]);
+		}
+	}
+	if(printed)
+		w += sldns_str_print(s, sl, ")");
+	return w;
+}
+
+int sldns_wire2str_edns_dau_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	sldns_lookup_table *lt;
+	size_t i;
+	int w = 0;
+	for(i=0; i<len; i++) {
+		lt = sldns_lookup_by_id(sldns_algorithms, (int)data[i]);
+		if(lt && lt->name)
+			w += sldns_str_print(s, sl, " %s", lt->name);
+		else 	w += sldns_str_print(s, sl, " %d", (int)data[i]);
+	}
+	return w;
+}
+
+int sldns_wire2str_edns_dhu_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	sldns_lookup_table *lt;
+	size_t i;
+	int w = 0;
+	for(i=0; i<len; i++) {
+		lt = sldns_lookup_by_id(sldns_hashes, (int)data[i]);
+		if(lt && lt->name)
+			w += sldns_str_print(s, sl, " %s", lt->name);
+		else 	w += sldns_str_print(s, sl, " %d", (int)data[i]);
+	}
+	return w;
+}
+
+int sldns_wire2str_edns_n3u_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	size_t i;
+	int w = 0;
+	for(i=0; i<len; i++) {
+		if(data[i] == 1)
+			w += sldns_str_print(s, sl, " SHA1");
+		else 	w += sldns_str_print(s, sl, " %d", (int)data[i]);
+	}
+	return w;
+}
+
+int sldns_wire2str_edns_subnet_print(char** s, size_t* sl, uint8_t* data,
+	size_t len)
+{
+	int w = 0;
+	uint16_t family;
+	uint8_t source, scope;
+	if(len < 4) {
+		w += sldns_str_print(s, sl, "malformed subnet ");
+		w += print_hex_buf(s, sl, data, len);
+		return w;
+	}
+	family = sldns_read_uint16(data);
+	source = data[2];
+	scope = data[3];
+	if(family == 1) {
+		/* IP4 */
+		char buf[64];
+		uint8_t ip4[4];
+		memset(ip4, 0, sizeof(ip4));
+		if(len-4 > 4) {
+			w += sldns_str_print(s, sl, "trailingdata:");
+			w += print_hex_buf(s, sl, data+4+4, len-4-4);
+			w += sldns_str_print(s, sl, " ");
+			len = 4+4;
+		}
+		memmove(ip4, data+4, len-4);
+		if(!inet_ntop(AF_INET, ip4, buf, (socklen_t)sizeof(buf))) {
+			w += sldns_str_print(s, sl, "ip4ntoperror ");
+			w += print_hex_buf(s, sl, data+4+4, len-4-4);
+		} else {
+			w += sldns_str_print(s, sl, "%s", buf);
+		}
+	} else if(family == 2) {
+		/* IP6 */
+		char buf[64];
+		uint8_t ip6[16];
+		memset(ip6, 0, sizeof(ip6));
+		if(len-4 > 16) {
+			w += sldns_str_print(s, sl, "trailingdata:");
+			w += print_hex_buf(s, sl, data+4+16, len-4-16);
+			w += sldns_str_print(s, sl, " ");
+			len = 4+16;
+		}
+		memmove(ip6, data+4, len-4);
+#ifdef AF_INET6
+		if(!inet_ntop(AF_INET6, ip6, buf, (socklen_t)sizeof(buf))) {
+			w += sldns_str_print(s, sl, "ip6ntoperror ");
+			w += print_hex_buf(s, sl, data+4+4, len-4-4);
+		} else {
+			w += sldns_str_print(s, sl, "%s", buf);
+		}
+#else
+		w += print_hex_buf(s, sl, data+4+4, len-4-4);
+#endif
+	} else {
+		/* unknown */
+		w += sldns_str_print(s, sl, "family %d ",
+			(int)family);
+		w += print_hex_buf(s, sl, data, len);
+	}
+	w += sldns_str_print(s, sl, "/%d scope /%d", (int)source, (int)scope);
+	return w;
+}
+
+int sldns_wire2str_edns_option_print(char** s, size_t* sl,
+	uint16_t option_code, uint8_t* optdata, size_t optlen)
+{
+	int w = 0;
+	w += sldns_wire2str_edns_option_code_print(s, sl, option_code);
+	w += sldns_str_print(s, sl, ": ");
+	switch(option_code) {
+	case LDNS_EDNS_LLQ:
+		w += sldns_wire2str_edns_llq_print(s, sl, optdata, optlen);
+		break;
+	case LDNS_EDNS_UL:
+		w += sldns_wire2str_edns_ul_print(s, sl, optdata, optlen);
+		break;
+	case LDNS_EDNS_NSID:
+		w += sldns_wire2str_edns_nsid_print(s, sl, optdata, optlen);
+		break;
+	case LDNS_EDNS_DAU:
+		w += sldns_wire2str_edns_dau_print(s, sl, optdata, optlen);
+		break;
+	case LDNS_EDNS_DHU:
+		w += sldns_wire2str_edns_dhu_print(s, sl, optdata, optlen);
+		break;
+	case LDNS_EDNS_N3U:
+		w += sldns_wire2str_edns_n3u_print(s, sl, optdata, optlen);
+		break;
+	case LDNS_EDNS_CLIENT_SUBNET:
+		w += sldns_wire2str_edns_subnet_print(s, sl, optdata, optlen);
+		break;
+	default:
+		/* unknown option code */
+		w += print_hex_buf(s, sl, optdata, optlen);
+		break;
+	}
+	return w;
+}
+
+/** print the edns options to string */
+static int
+print_edns_opts(char** s, size_t* sl, uint8_t* rdata, size_t rdatalen)
+{
+	uint16_t option_code, option_len;
+	int w = 0;
+	while(rdatalen > 0) {
+		/* option name */
+		if(rdatalen < 4) {
+			w += sldns_str_print(s, sl, " ; malformed: ");
+			w += print_hex_buf(s, sl, rdata, rdatalen);
+			return w;
+		}
+		option_code = sldns_read_uint16(rdata);
+		option_len = sldns_read_uint16(rdata+2);
+		rdata += 4;
+		rdatalen -= 4;
+
+		/* option value */
+		if(rdatalen < (size_t)option_len) {
+			w += sldns_str_print(s, sl, " ; malformed ");
+			w += sldns_wire2str_edns_option_code_print(s, sl,
+				option_code);
+			w += sldns_str_print(s, sl, ": ");
+			w += print_hex_buf(s, sl, rdata, rdatalen);
+			return w;
+		}
+		w += sldns_str_print(s, sl, " ; ");
+		w += sldns_wire2str_edns_option_print(s, sl, option_code,
+			rdata, option_len);
+		rdata += option_len;
+		rdatalen -= option_len;
+	}
+	return w;
+}
+
+int sldns_wire2str_edns_scan(uint8_t** data, size_t* data_len, char** str,
+        size_t* str_len, uint8_t* pkt, size_t pktlen)
+{
+	int w = 0;
+	uint8_t ext_rcode, edns_version;
+	uint16_t udpsize, edns_bits, rdatalen;
+	w += sldns_str_print(str, str_len, "; EDNS:");
+
+	/* some input checks, domain name */
+	if(*data_len < 1+10)
+		return w + print_remainder_hex("Error malformed 0x",
+			data, data_len, str, str_len);
+	if(*data[0] != 0) {
+		return w + print_remainder_hex("Error nonrootdname 0x",
+			data, data_len, str, str_len);
+	}
+	(*data)++;
+	(*data_len)--;
+
+	/* check type and read fixed contents */
+	if(sldns_read_uint16((*data)) != LDNS_RR_TYPE_OPT) {
+		return w + print_remainder_hex("Error nottypeOPT 0x",
+			data, data_len, str, str_len);
+	}
+	udpsize = sldns_read_uint16((*data)+2);
+	ext_rcode = (*data)[4];
+	edns_version = (*data)[5];
+	edns_bits = sldns_read_uint16((*data)+6);
+	rdatalen = sldns_read_uint16((*data)+8);
+	(*data)+=10;
+	(*data_len)-=10;
+
+	w += sldns_str_print(str, str_len, " version: %u;",
+		(unsigned)edns_version);
+	w += sldns_str_print(str, str_len, " flags:");
+	if((edns_bits & LDNS_EDNS_MASK_DO_BIT))
+		w += sldns_str_print(str, str_len, " do");
+	/* the extended rcode is the value set, shifted four bits,
+	 * and or'd with the original rcode */
+	if(ext_rcode) {
+		int rc = ((int)ext_rcode)<<4;
+		if(pkt && pktlen >= LDNS_HEADER_SIZE)
+			rc |= LDNS_RCODE_WIRE(pkt);
+		w += sldns_str_print(str, str_len, " ; ext-rcode: %d", rc);
+	}
+	w += sldns_str_print(str, str_len, " ; udp: %u", (unsigned)udpsize);
+
+	if(rdatalen) {
+		if(*data_len < rdatalen) {
+			w += sldns_str_print(str, str_len,
+				" ; Error EDNS rdata too short; ");
+			rdatalen = *data_len;
+		}
+		w += print_edns_opts(str, str_len, *data, rdatalen);
+		(*data) += rdatalen;
+		(*data_len) -= rdatalen;
+	}
+	w += sldns_str_print(str, str_len, "\n");
+	return w;
+}
diff --git a/external/unbound/sldns/wire2str.h b/external/unbound/sldns/wire2str.h
new file mode 100644
index 000000000..67f543566
--- /dev/null
+++ b/external/unbound/sldns/wire2str.h
@@ -0,0 +1,984 @@
+/**
+ * wire2str.h -  txt presentation of RRs
+ *
+ * (c) NLnet Labs, 2005-2006
+ *
+ * See the file LICENSE for the license
+ */
+
+/**
+ * \file
+ *
+ * Contains functions to translate the wireformat to text
+ * representation, as well as functions to print them.
+ */
+
+#ifndef LDNS_WIRE2STR_H
+#define LDNS_WIRE2STR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct sldns_struct_lookup_table;
+
+/* lookup tables for standard DNS stuff  */
+/** Taken from RFC 2535, section 7.  */
+extern struct sldns_struct_lookup_table* sldns_algorithms;
+/** DS record hash algorithms */
+extern struct sldns_struct_lookup_table* sldns_hashes;
+/** Taken from RFC 2538, section 2.1.  */
+extern struct sldns_struct_lookup_table* sldns_cert_algorithms;
+/** Response codes */
+extern struct sldns_struct_lookup_table* sldns_rcodes;
+/** Operation codes */
+extern struct sldns_struct_lookup_table* sldns_opcodes;
+/** EDNS flags */
+extern struct sldns_struct_lookup_table* sldns_edns_flags;
+/** EDNS option codes */
+extern struct sldns_struct_lookup_table* sldns_edns_options;
+/** error string from wireparse */
+extern struct sldns_struct_lookup_table* sldns_wireparse_errors;
+
+/**
+ * Convert wireformat packet to a string representation
+ * @param data: wireformat packet data (starting at ID bytes).
+ * @param len: length of packet.
+ * @return string(malloced) or NULL on failure.
+ */
+char* sldns_wire2str_pkt(uint8_t* data, size_t len);
+
+/**
+ * Convert wireformat RR to a string representation.
+ * @param rr: the wireformat RR, in uncompressed form.  Starts at the domain
+ * 	name start, ends with the rdata of the RR.
+ * @param len: length of the rr wireformat.
+ * @return string(malloced) or NULL on failure.
+ */
+char* sldns_wire2str_rr(uint8_t* rr, size_t len);
+
+/**
+ * Conver wire dname to a string.
+ * @param dname: the dname in uncompressed wireformat.
+ * @param dname_len: length of the dname.
+ * @return string or NULL on failure.
+ */
+char* sldns_wire2str_dname(uint8_t* dname, size_t dname_len);
+
+/**
+ * Convert wire RR type to a string, 'MX', 'TYPE1234'...
+ * @param rrtype: the RR type in host order.
+ * @return malloced string with the RR type or NULL on malloc failure.
+ */
+char* sldns_wire2str_type(uint16_t rrtype);
+
+/**
+ * Convert wire RR class to a string, 'IN', 'CLASS1'.
+ * @param rrclass: the RR class in host order.
+ * @return malloced string with the RR class or NULL on malloc failure.
+ */
+char* sldns_wire2str_class(uint16_t rrclass);
+
+/**
+ * Convert wire packet rcode to a string, 'NOERROR', 'NXDOMAIN'...
+ * @param rcode: as integer, host order
+ * @return malloced string with the rcode or NULL on malloc failure.
+ */
+char* sldns_wire2str_rcode(int rcode);
+
+/**
+ * Print to string, move string along for next content. With va_list.
+ * @param str: string buffer.  Adjusted at end to after the output.
+ * @param slen: length of the string buffer.  Adjusted at end.
+ * @param format: printf format string.
+ * @param args: arguments for printf.
+ * @return number of characters needed. Can be larger than slen.
+ */
+int sldns_str_vprint(char** str, size_t* slen, const char* format, va_list args);
+
+/**
+ * Print to string, move string along for next content.
+ * @param str: string buffer.  Adjusted at end to after the output.
+ * @param slen: length of the string buffer.  Adjusted at end.
+ * @param format: printf format string and arguments for it.
+ * @return number of characters needed. Can be larger than slen.
+ */
+int sldns_str_print(char** str, size_t* slen, const char* format, ...)
+	ATTR_FORMAT(printf, 3, 4);
+
+/**
+ * Convert wireformat packet to a string representation with user buffer
+ * It appends every RR with default comments.
+ * For more formatter options use the function: TBD(TODO)
+ * @param data: wireformat packet data (starting at ID bytes).
+ * @param data_len: length of packet.
+ * @param str: the string buffer for the output.
+ * 	If you pass NULL as the str the return value of the function is
+ * 	the str_len you need for the entire packet.  It does not include
+ * 	the 0 byte at the end.
+ * @param str_len: the size of the string buffer.  If more is needed, it'll
+ * 	silently truncate the output to fit in the buffer.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_pkt_buf(uint8_t* data, size_t data_len, char* str,
+	size_t str_len);
+
+/**
+ * Scan wireformat packet to a string representation with user buffer
+ * It appends every RR with default comments.
+ * For more formatter options use the function: TBD(TODO)
+ * @param data: wireformat packet data (starting at ID bytes).
+ * @param data_len: length of packet.
+ * @param str: the string buffer for the output.
+ * @param str_len: the size of the string buffer.
+ * @return number of characters for string.
+ * returns the number of characters that are needed (except terminating null),
+ * so it may return a value larger than str_len.
+ * On error you get less output (i.e. shorter output in str (null terminated))
+ * On exit the data, data_len, str and str_len values are adjusted to move them
+ * from their original position along the input and output for the content
+ * that has been consumed (and produced) by this function.  If the end of the
+ * output string is reached, *str_len is set to 0.  The output string is null
+ * terminated (shortening the output if necessary).  If the end of the input
+ * is reached *data_len is set to 0.
+ */
+int sldns_wire2str_pkt_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat rr to string, with user buffers.  It shifts the arguments
+ * to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rr_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Scan wireformat question rr to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rrquestion_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Scan wireformat RR to string in unknown RR format, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rr_unknown_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Print to string the RR-information comment in default format,
+ * with user buffers.  Moves string along.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param rr: wireformat data.
+ * @param rrlen: length of data buffer.
+ * @param dname_off: offset in buffer behind owner dname, the compressed size
+ * 	of the owner name.
+ * @param rrtype: type of the RR, host format.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rr_comment_print(char** str, size_t* str_len, uint8_t* rr,
+	size_t rrlen, size_t dname_off, uint16_t rrtype);
+
+/**
+ * Scan wireformat packet header to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_header_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat rdata to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.  The length of the rdata in the
+ * 	buffer.  The rdatalen itself has already been scanned, the data
+ * 	points to the rdata after the rdatalen.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param rrtype: RR type of Rdata, host format.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rdata_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint16_t rrtype, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Scan wireformat rdata to string in unknown format, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer, the length of the rdata in buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rdata_unknown_scan(uint8_t** data, size_t* data_len,
+	char** str, size_t* str_len);
+
+/**
+ * Scan wireformat domain name to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_dname_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Scan wireformat rr type to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_type_scan(uint8_t** data, size_t* data_len, char** str,
+        size_t* str_len);
+
+/**
+ * Scan wireformat rr class to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_class_scan(uint8_t** data, size_t* data_len, char** str,
+        size_t* str_len);
+
+/**
+ * Scan wireformat rr ttl to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_ttl_scan(uint8_t** data, size_t* data_len, char** str,
+        size_t* str_len);
+
+
+/**
+ * Print host format rr type to string.  Moves string along, user buffers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param rrtype: host format rr type.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_type_print(char** str, size_t* str_len, uint16_t rrtype);
+
+/**
+ * Print host format rr class to string.  Moves string along, user buffers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param rrclass: host format rr class.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_class_print(char** str, size_t* str_len, uint16_t rrclass);
+
+/**
+ * Print host format rcode to string.  Moves string along, user buffers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param rcode: host format rcode number.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_rcode_print(char** str, size_t* str_len, int rcode);
+
+/**
+ * Print host format opcode to string.  Moves string along, user buffers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param opcode: host format opcode number.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_opcode_print(char** str, size_t* str_len, int opcode);
+
+/**
+ * Print host format EDNS0 option to string.  Moves string along, user buffers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param opcode: host format option number.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_option_code_print(char** str, size_t* str_len,
+	uint16_t opcode);
+
+/**
+ * Convert RR to string presentation format, on one line.  User buffer.
+ * @param rr: wireformat RR data
+ * @param rr_len: length of the rr wire data.
+ * @param str: the string buffer to write to.
+ * 	If you pass NULL as the str, the return value of the function is
+ * 	the str_len you need for the entire packet.  It does not include
+ * 	the 0 byte at the end.
+ * @param str_len: the size of the string buffer.  If more is needed, it'll
+ * 	silently truncate the output to fit in the buffer.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_rr_buf(uint8_t* rr, size_t rr_len, char* str,
+	size_t str_len);
+
+/**
+ * 3597 printout of an RR in unknown rr format.
+ * There are more format and comment options available for printout
+ * with the function: TBD(TODO)
+ * @param rr: wireformat RR data
+ * @param rr_len: length of the rr wire data.
+ * @param str: the string buffer to write to.
+ * 	If you pass NULL as the str, the return value of the function is
+ * 	the str_len you need for the entire rr.  It does not include
+ * 	the 0 byte at the end.
+ * @param str_len: the size of the string buffer.  If more is needed, it'll
+ * 	silently truncate the output to fit in the buffer.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_rr_unknown_buf(uint8_t* rr, size_t rr_len, char* str,
+	size_t str_len);
+
+/**
+ * This creates the comment to print after the RR. ; keytag=... , and other
+ * basic comments for RRs.
+ * There are more format and comment options available for printout
+ * with the function: TBD(TODO)
+ * @param rr: wireformat RR data
+ * @param rr_len: length of the rr wire data.
+ * @param dname_len: length of the dname in front of the RR.
+ * @param str: the string buffer to write to.
+ * 	If you pass NULL as the str, the return value of the function is
+ * 	the str_len you need for the entire comment.  It does not include
+ * 	the 0 byte at the end.
+ * @param str_len: the size of the string buffer.  If more is needed, it'll
+ * 	silently truncate the output to fit in the buffer.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_rr_comment_buf(uint8_t* rr, size_t rr_len, size_t dname_len,
+	char* str, size_t str_len);
+
+/**
+ * Convert RDATA to string presentation format, on one line.  User buffer.
+ * @param rdata: wireformat rdata part of an RR.
+ * @param rdata_len: length of the rr wire data.
+ * @param str: the string buffer to write to.
+ * 	If you pass NULL as the str, the return value of the function is
+ * 	the str_len you need for the entire packet.  It does not include
+ * 	the 0 byte at the end.
+ * @param str_len: the size of the string buffer.  If more is needed, it'll
+ * 	silently truncate the output to fit in the buffer.
+ * @param rrtype: rr type of the data
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_rdata_buf(uint8_t* rdata, size_t rdata_len, char* str,
+	size_t str_len, uint16_t rrtype);
+
+/**
+ * Convert wire RR type to a string, 'MX', 'TYPE12'.  With user buffer.
+ * @param rrtype: the RR type in host order.
+ * @param str: the string to write to.
+ * @param len: length of str.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_type_buf(uint16_t rrtype, char* str, size_t len);
+
+/**
+ * Convert wire RR class to a string, 'IN', 'CLASS12'.  With user buffer.
+ * @param rrclass: the RR class in host order.
+ * @param str: the string to write to.
+ * @param len: length of str.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_class_buf(uint16_t rrclass, char* str, size_t len);
+
+/**
+ * Convert wire RR rcode to a string, 'NOERROR', 'NXDOMAIN'.  With user buffer.
+ * @param rcode: rcode as integer in host order
+ * @param str: the string to write to.
+ * @param len: length of str.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_rcode_buf(int rcode, char* str, size_t len);
+
+/**
+ * Convert wire dname to a string, "example.com.".  With user buffer.
+ * @param dname: the dname in uncompressed wireformat.
+ * @param dname_len: length of the dname.
+ * @param str: the string to write to.
+ * @param len: length of string.
+ * @return the number of characters for this element, excluding zerobyte.
+ * 	Is larger than str_len if output was truncated.
+ */
+int sldns_wire2str_dname_buf(uint8_t* dname, size_t dname_len, char* str,
+	size_t len);
+
+/**
+ * Scan wireformat rdf field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param rdftype: the type of the rdata field, enum sldns_rdf_type.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_rdf_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, int rdftype, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Scan wireformat int8 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_int8_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat int16 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_int16_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat int32 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_int32_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat period field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_period_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat tsigtime field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_tsigtime_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat ip4 A field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_a_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat ip6 AAAA field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_aaaa_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat str field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_str_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat apl field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_apl_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat b32_ext field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_b32_ext_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat b64 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_b64_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat hex field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_hex_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat nsec bitmap field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_nsec_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat nsec3_salt field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_nsec3_salt_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat cert_alg field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_cert_alg_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat alg field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_alg_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat type unknown field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_unknown_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat time field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_time_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat LOC field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_loc_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat WKS field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_wks_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat NSAP field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_nsap_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat ATMA field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_atma_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat IPSECKEY field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param pkt: packet for decompression, if NULL no decompression.
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_ipseckey_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint8_t* pkt, size_t pktlen);
+
+/**
+ * Scan wireformat HIP (algo, HIT, pubkey) field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_hip_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat int16_data field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_int16_data_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat nsec3_next_owner field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_nsec3_next_owner_scan(uint8_t** data, size_t* data_len,
+	char** str, size_t* str_len);
+
+/**
+ * Scan wireformat ILNP64 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_ilnp64_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat EUI48 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_eui48_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat EUI64 field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_eui64_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat TAG field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_tag_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Scan wireformat long_str field to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @return number of characters (except null) needed to print.
+ * 	Can return -1 on failure.
+ */
+int sldns_wire2str_long_str_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len);
+
+/**
+ * Print EDNS LLQ option data to string.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_llq_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print EDNS UL option data to string.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_ul_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print EDNS NSID option data to string.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_nsid_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print EDNS DAU option data to string.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_dau_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print EDNS DHU option data to string.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_dhu_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print EDNS N3U option data to string.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_n3u_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print EDNS SUBNET option data to string. User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_subnet_print(char** str, size_t* str_len,
+	uint8_t* option_data, size_t option_len);
+
+/**
+ * Print an EDNS option as OPT: VALUE.  User buffers, moves string pointers.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param option_code: host format EDNS option code.
+ * @param option_data: buffer with EDNS option code data.
+ * @param option_len: length of the data for this option.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_option_print(char** str, size_t* str_len,
+	uint16_t option_code, uint8_t* option_data, size_t option_len);
+
+/**
+ * Scan wireformat EDNS OPT to string, with user buffers.
+ * It shifts the arguments to move along (see sldns_wire2str_pkt_scan).
+ * @param data: wireformat data.
+ * @param data_len: length of data buffer.
+ * @param str: string buffer.
+ * @param str_len: length of string buffer.
+ * @param pkt: packet with header and other info (may be NULL)
+ * @param pktlen: length of packet buffer.
+ * @return number of characters (except null) needed to print.
+ */
+int sldns_wire2str_edns_scan(uint8_t** data, size_t* data_len, char** str,
+	size_t* str_len, uint8_t* pkt, size_t pktlen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_WIRE2STR_H */