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-rw-r--r--external/unbound/sldns/parse.c470
1 files changed, 0 insertions, 470 deletions
diff --git a/external/unbound/sldns/parse.c b/external/unbound/sldns/parse.c
deleted file mode 100644
index 35dee7196..000000000
--- a/external/unbound/sldns/parse.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * 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;
- }
-}
-
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