1 files changed, 0 insertions, 402 deletions

diff --git a/external/unbound/libunbound/context.c b/external/unbound/libunbound/context.c
deleted file mode 100644
index e203111b7..000000000
--- a/external/unbound/libunbound/context.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
- * libunbound/context.c - validating context for unbound internal use
- *
- * Copyright (c) 2007, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * \file
- *
- * This file contains the validator context structure.
- */
-#include "config.h"
-#include "libunbound/context.h"
-#include "util/module.h"
-#include "util/config_file.h"
-#include "util/net_help.h"
-#include "services/modstack.h"
-#include "services/localzone.h"
-#include "services/cache/rrset.h"
-#include "services/cache/infra.h"
-#include "util/data/msgreply.h"
-#include "util/storage/slabhash.h"
-#include "sldns/sbuffer.h"
-
-int 
-context_finalize(struct ub_ctx* ctx)
-{
-	struct config_file* cfg = ctx->env->cfg;
-	verbosity = cfg->verbosity;
-	if(ctx->logfile_override)
-		log_file(ctx->log_out);
-	else	log_init(cfg->logfile, cfg->use_syslog, NULL);
-	config_apply(cfg);
-	if(!modstack_setup(&ctx->mods, cfg->module_conf, ctx->env))
-		return UB_INITFAIL;
-	log_edns_known_options(VERB_ALGO, ctx->env);
-	ctx->local_zones = local_zones_create();
-	if(!ctx->local_zones)
-		return UB_NOMEM;
-	if(!local_zones_apply_cfg(ctx->local_zones, cfg))
-		return UB_INITFAIL;
-	if(!ctx->env->msg_cache ||
-	   cfg->msg_cache_size != slabhash_get_size(ctx->env->msg_cache) || 
-	   cfg->msg_cache_slabs != ctx->env->msg_cache->size) {
-		slabhash_delete(ctx->env->msg_cache);
-		ctx->env->msg_cache = slabhash_create(cfg->msg_cache_slabs,
-			HASH_DEFAULT_STARTARRAY, cfg->msg_cache_size,
-			msgreply_sizefunc, query_info_compare,
-			query_entry_delete, reply_info_delete, NULL);
-		if(!ctx->env->msg_cache)
-			return UB_NOMEM;
-	}
-	ctx->env->rrset_cache = rrset_cache_adjust(ctx->env->rrset_cache,
-		ctx->env->cfg, ctx->env->alloc);
-	if(!ctx->env->rrset_cache)
-		return UB_NOMEM;
-	ctx->env->infra_cache = infra_adjust(ctx->env->infra_cache, cfg);
-	if(!ctx->env->infra_cache)
-		return UB_NOMEM;
-	ctx->finalized = 1;
-	return UB_NOERROR;
-}
-
-int context_query_cmp(const void* a, const void* b)
-{
-	if( *(int*)a < *(int*)b )
-		return -1;
-	if( *(int*)a > *(int*)b )
-		return 1;
-	return 0;
-}
-
-void
-context_query_delete(struct ctx_query* q) 
-{
-	if(!q) return;
-	ub_resolve_free(q->res);
-	free(q->msg);
-	free(q);
-}
-
-/** How many times to try to find an unused query-id-number for async */
-#define NUM_ID_TRIES 100000
-/** find next useful id number of 0 on error */
-static int
-find_id(struct ub_ctx* ctx, int* id)
-{
-	size_t tries = 0;
-	ctx->next_querynum++;
-	while(rbtree_search(&ctx->queries, &ctx->next_querynum)) {
-		ctx->next_querynum++; /* numerical wraparound is fine */
-		if(tries++ > NUM_ID_TRIES)
-			return 0;
-	}
-	*id = ctx->next_querynum;
-	return 1;
-}
-
-struct ctx_query* 
-context_new(struct ub_ctx* ctx, const char* name, int rrtype, int rrclass, 
-	ub_callback_type cb, void* cbarg)
-{
-	struct ctx_query* q = (struct ctx_query*)calloc(1, sizeof(*q));
-	if(!q) return NULL;
-	lock_basic_lock(&ctx->cfglock);
-	if(!find_id(ctx, &q->querynum)) {
-		lock_basic_unlock(&ctx->cfglock);
-		free(q);
-		return NULL;
-	}
-	lock_basic_unlock(&ctx->cfglock);
-	q->node.key = &q->querynum;
-	q->async = (cb != NULL);
-	q->cb = cb;
-	q->cb_arg = cbarg;
-	q->res = (struct ub_result*)calloc(1, sizeof(*q->res));
-	if(!q->res) {
-		free(q);
-		return NULL;
-	}
-	q->res->qname = strdup(name);
-	if(!q->res->qname) {
-		free(q->res);
-		free(q);
-		return NULL;
-	}
-	q->res->qtype = rrtype;
-	q->res->qclass = rrclass;
-
-	/* add to query list */
-	lock_basic_lock(&ctx->cfglock);
-	if(q->async)
-		ctx->num_async ++;
-	(void)rbtree_insert(&ctx->queries, &q->node);
-	lock_basic_unlock(&ctx->cfglock);
-	return q;
-}
-
-struct alloc_cache* 
-context_obtain_alloc(struct ub_ctx* ctx, int locking)
-{
-	struct alloc_cache* a;
-	int tnum = 0;
-	if(locking) {
-		lock_basic_lock(&ctx->cfglock);
-	}
-	a = ctx->alloc_list;
-	if(a)
-		ctx->alloc_list = a->super; /* snip off list */
-	else	tnum = ctx->thr_next_num++;
-	if(locking) {
-		lock_basic_unlock(&ctx->cfglock);
-	}
-	if(a) {
-		a->super = &ctx->superalloc;
-		return a;
-	}
-	a = (struct alloc_cache*)calloc(1, sizeof(*a));
-	if(!a)
-		return NULL;
-	alloc_init(a, &ctx->superalloc, tnum);
-	return a;
-}
-
-void 
-context_release_alloc(struct ub_ctx* ctx, struct alloc_cache* alloc,
-	int locking)
-{
-	if(!ctx || !alloc)
-		return;
-	if(locking) {
-		lock_basic_lock(&ctx->cfglock);
-	}
-	alloc->super = ctx->alloc_list;
-	ctx->alloc_list = alloc;
-	if(locking) {
-		lock_basic_unlock(&ctx->cfglock);
-	}
-}
-
-uint8_t* 
-context_serialize_new_query(struct ctx_query* q, uint32_t* len)
-{
-	/* format for new query is
-	 * 	o uint32 cmd
-	 * 	o uint32 id
-	 * 	o uint32 type
-	 * 	o uint32 class
-	 * 	o rest queryname (string)
-	 */
-	uint8_t* p;
-	size_t slen = strlen(q->res->qname) + 1/*end of string*/;
-	*len = sizeof(uint32_t)*4 + slen;
-	p = (uint8_t*)malloc(*len);
-	if(!p) return NULL;
-	sldns_write_uint32(p, UB_LIBCMD_NEWQUERY);
-	sldns_write_uint32(p+sizeof(uint32_t), (uint32_t)q->querynum);
-	sldns_write_uint32(p+2*sizeof(uint32_t), (uint32_t)q->res->qtype);
-	sldns_write_uint32(p+3*sizeof(uint32_t), (uint32_t)q->res->qclass);
-	memmove(p+4*sizeof(uint32_t), q->res->qname, slen);
-	return p;
-}
-
-struct ctx_query* 
-context_deserialize_new_query(struct ub_ctx* ctx, uint8_t* p, uint32_t len)
-{
-	struct ctx_query* q = (struct ctx_query*)calloc(1, sizeof(*q));
-	if(!q) return NULL;
-	if(len < 4*sizeof(uint32_t)+1) {
-		free(q);
-		return NULL;
-	}
-	log_assert( sldns_read_uint32(p) == UB_LIBCMD_NEWQUERY);
-	q->querynum = (int)sldns_read_uint32(p+sizeof(uint32_t));
-	q->node.key = &q->querynum;
-	q->async = 1;
-	q->res = (struct ub_result*)calloc(1, sizeof(*q->res));
-	if(!q->res) {
-		free(q);
-		return NULL;
-	}
-	q->res->qtype = (int)sldns_read_uint32(p+2*sizeof(uint32_t));
-	q->res->qclass = (int)sldns_read_uint32(p+3*sizeof(uint32_t));
-	q->res->qname = strdup((char*)(p+4*sizeof(uint32_t)));
-	if(!q->res->qname) {
-		free(q->res);
-		free(q);
-		return NULL;
-	}
-
-	/** add to query list */
-	ctx->num_async++;
-	(void)rbtree_insert(&ctx->queries, &q->node);
-	return q;
-}
-
-struct ctx_query* 
-context_lookup_new_query(struct ub_ctx* ctx, uint8_t* p, uint32_t len)
-{
-	struct ctx_query* q;
-	int querynum;
-	if(len < 4*sizeof(uint32_t)+1) {
-		return NULL;
-	}
-	log_assert( sldns_read_uint32(p) == UB_LIBCMD_NEWQUERY);
-	querynum = (int)sldns_read_uint32(p+sizeof(uint32_t));
-	q = (struct ctx_query*)rbtree_search(&ctx->queries, &querynum);
-	if(!q) {
-		return NULL;
-	}
-	log_assert(q->async);
-	return q;
-}
-
-uint8_t* 
-context_serialize_answer(struct ctx_query* q, int err, sldns_buffer* pkt,
-	uint32_t* len)
-{
-	/* answer format
-	 * 	o uint32 cmd
-	 * 	o uint32 id
-	 * 	o uint32 error_code
-	 * 	o uint32 msg_security
-	 * 	o uint32 length of why_bogus string (+1 for eos); 0 absent.
-	 * 	o why_bogus_string
-	 * 	o the remainder is the answer msg from resolver lookup.
-	 * 	  remainder can be length 0.
-	 */
-	size_t pkt_len = pkt?sldns_buffer_remaining(pkt):0;
-	size_t wlen = (pkt&&q->res->why_bogus)?strlen(q->res->why_bogus)+1:0;
-	uint8_t* p;
-	*len = sizeof(uint32_t)*5 + pkt_len + wlen;
-	p = (uint8_t*)malloc(*len);
-	if(!p) return NULL;
-	sldns_write_uint32(p, UB_LIBCMD_ANSWER);
-	sldns_write_uint32(p+sizeof(uint32_t), (uint32_t)q->querynum);
-	sldns_write_uint32(p+2*sizeof(uint32_t), (uint32_t)err);
-	sldns_write_uint32(p+3*sizeof(uint32_t), (uint32_t)q->msg_security);
-	sldns_write_uint32(p+4*sizeof(uint32_t), (uint32_t)wlen);
-	if(wlen > 0)
-		memmove(p+5*sizeof(uint32_t), q->res->why_bogus, wlen);
-	if(pkt_len > 0)
-		memmove(p+5*sizeof(uint32_t)+wlen, 
-			sldns_buffer_begin(pkt), pkt_len);
-	return p;
-}
-
-struct ctx_query* 
-context_deserialize_answer(struct ub_ctx* ctx,
-        uint8_t* p, uint32_t len, int* err)
-{
-	struct ctx_query* q = NULL ;
-	int id;
-	size_t wlen;
-	if(len < 5*sizeof(uint32_t)) return NULL;
-	log_assert( sldns_read_uint32(p) == UB_LIBCMD_ANSWER);
-	id = (int)sldns_read_uint32(p+sizeof(uint32_t));
-	q = (struct ctx_query*)rbtree_search(&ctx->queries, &id);
-	if(!q) return NULL; 
-	*err = (int)sldns_read_uint32(p+2*sizeof(uint32_t));
-	q->msg_security = sldns_read_uint32(p+3*sizeof(uint32_t));
-	wlen = (size_t)sldns_read_uint32(p+4*sizeof(uint32_t));
-	if(len > 5*sizeof(uint32_t) && wlen > 0) {
-		if(len >= 5*sizeof(uint32_t)+wlen)
-			q->res->why_bogus = (char*)memdup(
-				p+5*sizeof(uint32_t), wlen);
-		if(!q->res->why_bogus) {
-			/* pass malloc failure to the user callback */
-			q->msg_len = 0;
-			*err = UB_NOMEM;
-			return q;
-		}
-		q->res->why_bogus[wlen-1] = 0; /* zero terminated for sure */
-	}
-	if(len > 5*sizeof(uint32_t)+wlen) {
-		q->msg_len = len - 5*sizeof(uint32_t) - wlen;
-		q->msg = (uint8_t*)memdup(p+5*sizeof(uint32_t)+wlen, 
-			q->msg_len);
-		if(!q->msg) {
-			/* pass malloc failure to the user callback */
-			q->msg_len = 0;
-			*err = UB_NOMEM;
-			return q;
-		}
-	} 
-	return q;
-}
-
-uint8_t* 
-context_serialize_cancel(struct ctx_query* q, uint32_t* len)
-{
-	/* format of cancel:
-	 * 	o uint32 cmd
-	 * 	o uint32 async-id */
-	uint8_t* p = (uint8_t*)reallocarray(NULL, sizeof(uint32_t), 2);
-	if(!p) return NULL;
-	*len = 2*sizeof(uint32_t);
-	sldns_write_uint32(p, UB_LIBCMD_CANCEL);
-	sldns_write_uint32(p+sizeof(uint32_t), (uint32_t)q->querynum);
-	return p;
-}
-
-struct ctx_query* context_deserialize_cancel(struct ub_ctx* ctx,
-        uint8_t* p, uint32_t len)
-{
-	struct ctx_query* q;
-	int id;
-	if(len != 2*sizeof(uint32_t)) return NULL;
-	log_assert( sldns_read_uint32(p) == UB_LIBCMD_CANCEL);
-	id = (int)sldns_read_uint32(p+sizeof(uint32_t));
-	q = (struct ctx_query*)rbtree_search(&ctx->queries, &id);
-	return q;
-}
-
-uint8_t* 
-context_serialize_quit(uint32_t* len)
-{
-	uint8_t* p = (uint8_t*)malloc(sizeof(uint32_t));
-	if(!p)
-		return NULL;
-	*len = sizeof(uint32_t);
-	sldns_write_uint32(p, UB_LIBCMD_QUIT);
-	return p;
-}
-
-enum ub_ctx_cmd context_serial_getcmd(uint8_t* p, uint32_t len)
-{
-	uint32_t v;
-	if((size_t)len < sizeof(v))
-		return UB_LIBCMD_QUIT;
-	v = sldns_read_uint32(p);
-	return v;
-}