1 /* LIBLDAP url.c -- LDAP URL (RFC 2255) related routines */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2006 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
16 /* Portions Copyright (c) 1996 Regents of the University of Michigan.
17 * All rights reserved.
22 * LDAP URLs look like this:
23 * ldap[is]://host:port[/[dn[?[attributes][?[scope][?[filter][?exts]]]]]]
26 * attributes is a comma separated list
27 * scope is one of these three strings: base one sub (default=base)
28 * filter is an string-represented filter as in RFC 2254
30 * e.g., ldap://host:port/dc=com?o,cn?base?(o=openldap)?extension
32 * We also tolerate URLs that look like: <ldapurl> and <URL:ldapurl>
39 #include <ac/stdlib.h>
42 #include <ac/socket.h>
43 #include <ac/string.h>
49 static const char* skip_url_prefix LDAP_P((
52 const char **scheme ));
54 int ldap_pvt_url_scheme2proto( const char *scheme )
56 assert( scheme != NULL );
58 if( scheme == NULL ) {
62 if( strcmp("ldap", scheme) == 0 ) {
63 return LDAP_PROTO_TCP;
66 if( strcmp("ldapi", scheme) == 0 ) {
67 return LDAP_PROTO_IPC;
70 if( strcmp("ldaps", scheme) == 0 ) {
71 return LDAP_PROTO_TCP;
73 #ifdef LDAP_CONNECTIONLESS
74 if( strcmp("cldap", scheme) == 0 ) {
75 return LDAP_PROTO_UDP;
82 int ldap_pvt_url_scheme_port( const char *scheme, int port )
84 assert( scheme != NULL );
86 if( port ) return port;
87 if( scheme == NULL ) return port;
89 if( strcmp("ldap", scheme) == 0 ) {
93 if( strcmp("ldapi", scheme) == 0 ) {
97 if( strcmp("ldaps", scheme) == 0 ) {
101 #ifdef LDAP_CONNECTIONLESS
102 if( strcmp("cldap", scheme) == 0 ) {
111 ldap_pvt_url_scheme2tls( const char *scheme )
113 assert( scheme != NULL );
115 if( scheme == NULL ) {
119 return strcmp("ldaps", scheme) == 0;
123 ldap_is_ldap_url( LDAP_CONST char *url )
132 if( skip_url_prefix( url, &enclosed, &scheme ) == NULL ) {
140 ldap_is_ldaps_url( LDAP_CONST char *url )
149 if( skip_url_prefix( url, &enclosed, &scheme ) == NULL ) {
153 return strcmp(scheme, "ldaps") == 0;
157 ldap_is_ldapi_url( LDAP_CONST char *url )
166 if( skip_url_prefix( url, &enclosed, &scheme ) == NULL ) {
170 return strcmp(scheme, "ldapi") == 0;
173 #ifdef LDAP_CONNECTIONLESS
175 ldap_is_ldapc_url( LDAP_CONST char *url )
184 if( skip_url_prefix( url, &enclosed, &scheme ) == NULL ) {
188 return strcmp(scheme, "cldap") == 0;
196 const char **scheme )
199 * return non-zero if this looks like a LDAP URL; zero if not
200 * if non-zero returned, *urlp will be moved past "ldap://" part of URL
210 /* skip leading '<' (if any) */
218 /* skip leading "URL:" (if any) */
219 if ( strncasecmp( p, LDAP_URL_URLCOLON, LDAP_URL_URLCOLON_LEN ) == 0 ) {
220 p += LDAP_URL_URLCOLON_LEN;
223 /* check for "ldap://" prefix */
224 if ( strncasecmp( p, LDAP_URL_PREFIX, LDAP_URL_PREFIX_LEN ) == 0 ) {
225 /* skip over "ldap://" prefix and return success */
226 p += LDAP_URL_PREFIX_LEN;
231 /* check for "ldaps://" prefix */
232 if ( strncasecmp( p, LDAPS_URL_PREFIX, LDAPS_URL_PREFIX_LEN ) == 0 ) {
233 /* skip over "ldaps://" prefix and return success */
234 p += LDAPS_URL_PREFIX_LEN;
239 /* check for "ldapi://" prefix */
240 if ( strncasecmp( p, LDAPI_URL_PREFIX, LDAPI_URL_PREFIX_LEN ) == 0 ) {
241 /* skip over "ldapi://" prefix and return success */
242 p += LDAPI_URL_PREFIX_LEN;
247 #ifdef LDAP_CONNECTIONLESS
248 /* check for "cldap://" prefix */
249 if ( strncasecmp( p, LDAPC_URL_PREFIX, LDAPC_URL_PREFIX_LEN ) == 0 ) {
250 /* skip over "cldap://" prefix and return success */
251 p += LDAPC_URL_PREFIX_LEN;
261 static int str2scope( const char *p )
263 if ( strcasecmp( p, "one" ) == 0 ) {
264 return LDAP_SCOPE_ONELEVEL;
266 } else if ( strcasecmp( p, "onelevel" ) == 0 ) {
267 return LDAP_SCOPE_ONELEVEL;
269 } else if ( strcasecmp( p, "base" ) == 0 ) {
270 return LDAP_SCOPE_BASE;
272 } else if ( strcasecmp( p, "sub" ) == 0 ) {
273 return LDAP_SCOPE_SUBTREE;
275 } else if ( strcasecmp( p, "subtree" ) == 0 ) {
276 return LDAP_SCOPE_SUBTREE;
278 } else if ( strcasecmp( p, "subordinate" ) == 0 ) {
279 return LDAP_SCOPE_SUBORDINATE;
281 } else if ( strcasecmp( p, "children" ) == 0 ) {
282 return LDAP_SCOPE_SUBORDINATE;
288 static const char hex[] = "0123456789ABCDEF";
290 #define URLESC_NONE 0x0000U
291 #define URLESC_COMMA 0x0001U
292 #define URLESC_SLASH 0x0002U
295 hex_escape_len( const char *s, unsigned list )
303 for ( len = 0; s[0]; s++ ) {
305 /* RFC 2396: reserved */
311 if ( list & URLESC_COMMA ) {
319 if ( list & URLESC_SLASH ) {
334 /* RFC 2396: unreserved mark */
347 /* RFC 2396: unreserved alphanum */
349 if ( !isalnum( s[0] ) ) {
362 hex_escape( char *buf, int len, const char *s, unsigned list )
371 for ( pos = 0, i = 0; s[i] && pos < len; i++ ) {
375 /* RFC 2396: reserved */
381 if ( list & URLESC_COMMA ) {
387 if ( list & URLESC_SLASH ) {
400 /* RFC 2396: unreserved mark */
412 /* RFC 2396: unreserved alphanum */
414 if ( !isalnum( s[i] ) ) {
422 buf[pos++] = hex[ (s[i] >> 4) & 0x0f ];
423 buf[pos++] = hex[ s[i] & 0x0f ];
436 hex_escape_len_list( char **s, unsigned flags )
446 for ( i = 0; s[i] != NULL; i++ ) {
450 len += hex_escape_len( s[i], flags );
457 hex_escape_list( char *buf, int len, char **s, unsigned flags )
467 for ( i = 0; s[i] != NULL; i++ ) {
474 curlen = hex_escape( &buf[pos], len, s[i], flags );
483 desc2str_len( LDAPURLDesc *u )
493 len += hex_escape_len_list( u->lud_exts, URLESC_COMMA );
499 if ( u->lud_filter ) {
500 len += hex_escape_len( u->lud_filter, URLESC_NONE );
506 switch ( u->lud_scope ) {
507 case LDAP_SCOPE_BASE:
508 case LDAP_SCOPE_ONELEVEL:
509 case LDAP_SCOPE_SUBTREE:
510 case LDAP_SCOPE_SUBORDINATE:
511 switch ( u->lud_scope ) {
512 case LDAP_SCOPE_BASE:
513 len += STRLENOF( "base" );
516 case LDAP_SCOPE_ONELEVEL:
517 len += STRLENOF( "one" );
520 case LDAP_SCOPE_SUBTREE:
521 len += STRLENOF( "sub" );
524 case LDAP_SCOPE_SUBORDINATE:
525 len += STRLENOF( "subordinate" );
538 if ( u->lud_attrs ) {
539 len += hex_escape_len_list( u->lud_attrs, URLESC_NONE );
545 if ( u->lud_dn && u->lud_dn[0] ) {
546 len += hex_escape_len( u->lud_dn, URLESC_NONE );
555 char buf[] = ":65535";
557 len += snprintf( buf, sizeof( buf ), ":%d", u->lud_port );
558 if ( u->lud_host && u->lud_host[0] ) {
559 len += strlen( u->lud_host );
563 if ( u->lud_host && u->lud_host[0] ) {
564 len += hex_escape_len( u->lud_host, URLESC_SLASH );
568 len += strlen( u->lud_scheme ) + STRLENOF( "://" );
574 desc2str( LDAPURLDesc *u, char *s, int len )
589 switch ( u->lud_scope ) {
590 case LDAP_SCOPE_BASE:
591 case LDAP_SCOPE_ONELEVEL:
592 case LDAP_SCOPE_SUBTREE:
593 case LDAP_SCOPE_SUBORDINATE:
600 } else if ( u->lud_filter ) {
602 } else if ( gotscope ) {
604 } else if ( u->lud_attrs ) {
606 } else if ( u->lud_dn && u->lud_dn[0] ) {
611 len -= sprintf( s, "%s://%s:%d%n", u->lud_scheme,
612 u->lud_host ? u->lud_host : "",
613 u->lud_port, &sofar );
616 len -= sprintf( s, "%s://%n", u->lud_scheme, &sofar );
617 if ( u->lud_host && u->lud_host[0] ) {
618 i = hex_escape( &s[sofar], len, u->lud_host, URLESC_SLASH );
635 if ( u->lud_dn && u->lud_dn[0] ) {
636 i = hex_escape( &s[sofar], len, u->lud_dn, URLESC_NONE );
651 i = hex_escape_list( &s[sofar], len, u->lud_attrs, URLESC_NONE );
665 switch ( u->lud_scope ) {
666 case LDAP_SCOPE_BASE:
667 strcpy( &s[sofar], "base" );
668 sofar += STRLENOF("base");
669 len -= STRLENOF("base");
672 case LDAP_SCOPE_ONELEVEL:
673 strcpy( &s[sofar], "one" );
674 sofar += STRLENOF("one");
675 len -= STRLENOF("one");
678 case LDAP_SCOPE_SUBTREE:
679 strcpy( &s[sofar], "sub" );
680 sofar += STRLENOF("sub");
681 len -= STRLENOF("sub");
684 case LDAP_SCOPE_SUBORDINATE:
685 strcpy( &s[sofar], "children" );
686 sofar += STRLENOF("children");
687 len -= STRLENOF("children");
701 i = hex_escape( &s[sofar], len, u->lud_filter, URLESC_NONE );
715 i = hex_escape_list( &s[sofar], len, u->lud_exts, URLESC_COMMA );
730 ldap_url_desc2str( LDAPURLDesc *u )
739 len = desc2str_len( u );
744 /* allocate enough to hex escape everything -- overkill */
745 s = LDAP_MALLOC( len + 1 );
751 if ( desc2str( u, s, len ) != len ) {
762 ldap_url_parse_ext( LDAP_CONST char *url_in, LDAPURLDesc **ludpp )
765 * Pick apart the pieces of an LDAP URL.
771 const char *scheme = NULL;
775 if( url_in == NULL || ludpp == NULL ) {
776 return LDAP_URL_ERR_PARAM;
779 #ifndef LDAP_INT_IN_KERNEL
780 /* Global options may not be created yet
781 * We can't test if the global options are initialized
782 * because a call to LDAP_INT_GLOBAL_OPT() will try to allocate
783 * the options and cause infinite recursion
785 Debug( LDAP_DEBUG_TRACE, "ldap_url_parse_ext(%s)\n", url_in, 0, 0 );
788 *ludpp = NULL; /* pessimistic */
790 url_tmp = skip_url_prefix( url_in, &enclosed, &scheme );
792 if ( url_tmp == NULL ) {
793 return LDAP_URL_ERR_BADSCHEME;
796 assert( scheme != NULL );
798 /* make working copy of the remainder of the URL */
799 url = LDAP_STRDUP( url_tmp );
801 return LDAP_URL_ERR_MEM;
805 p = &url[strlen(url)-1];
809 return LDAP_URL_ERR_BADENCLOSURE;
815 /* allocate return struct */
816 ludp = (LDAPURLDesc *)LDAP_CALLOC( 1, sizeof( LDAPURLDesc ));
818 if ( ludp == NULL ) {
820 return LDAP_URL_ERR_MEM;
823 ludp->lud_next = NULL;
824 ludp->lud_host = NULL;
827 ludp->lud_attrs = NULL;
828 ludp->lud_scope = LDAP_SCOPE_DEFAULT;
829 ludp->lud_filter = NULL;
830 ludp->lud_exts = NULL;
832 ludp->lud_scheme = LDAP_STRDUP( scheme );
834 if ( ludp->lud_scheme == NULL ) {
836 ldap_free_urldesc( ludp );
837 return LDAP_URL_ERR_MEM;
840 /* scan forward for '/' that marks end of hostport and begin. of dn */
841 p = strchr( url, '/' );
844 /* terminate hostport; point to start of dn */
848 /* IPv6 syntax with [ip address]:port */
850 r = strchr( url, ']' );
853 ldap_free_urldesc( ludp );
854 return LDAP_URL_ERR_BADURL;
857 q = strchr( r, ':' );
859 q = strchr( url, ':' );
866 ldap_pvt_hex_unescape( q );
870 ldap_free_urldesc( ludp );
871 return LDAP_URL_ERR_BADURL;
874 ludp->lud_port = strtol( q, &next, 10 );
875 if ( next == q || next[0] != '\0' ) {
877 ldap_free_urldesc( ludp );
878 return LDAP_URL_ERR_BADURL;
882 ldap_pvt_hex_unescape( url );
884 /* If [ip address]:port syntax, url is [ip and we skip the [ */
885 ludp->lud_host = LDAP_STRDUP( url + ( *url == '[' ) );
887 if( ludp->lud_host == NULL ) {
889 ldap_free_urldesc( ludp );
890 return LDAP_URL_ERR_MEM;
894 * Kludge. ldap://111.222.333.444:389??cn=abc,o=company
896 * On early Novell releases, search references/referrals were returned
897 * in this format, i.e., the dn was kind of in the scope position,
898 * but the required slash is missing. The whole thing is illegal syntax,
899 * but we need to account for it. Fortunately it can't be confused with
902 if( (p == NULL) && (q != NULL) && ((q = strchr( q, '?')) != NULL)) {
904 /* ? immediately followed by question */
909 ldap_pvt_hex_unescape( q );
910 ludp->lud_dn = LDAP_STRDUP( q );
912 ludp->lud_dn = LDAP_STRDUP( "" );
915 if( ludp->lud_dn == NULL ) {
917 ldap_free_urldesc( ludp );
918 return LDAP_URL_ERR_MEM;
926 return LDAP_URL_SUCCESS;
929 /* scan forward for '?' that may marks end of dn */
930 q = strchr( p, '?' );
933 /* terminate dn part */
939 ldap_pvt_hex_unescape( p );
940 ludp->lud_dn = LDAP_STRDUP( p );
942 ludp->lud_dn = LDAP_STRDUP( "" );
945 if( ludp->lud_dn == NULL ) {
947 ldap_free_urldesc( ludp );
948 return LDAP_URL_ERR_MEM;
955 return LDAP_URL_SUCCESS;
958 /* scan forward for '?' that may marks end of attributes */
960 q = strchr( p, '?' );
963 /* terminate attributes part */
968 /* parse attributes */
969 ldap_pvt_hex_unescape( p );
970 ludp->lud_attrs = ldap_str2charray( p, "," );
972 if( ludp->lud_attrs == NULL ) {
974 ldap_free_urldesc( ludp );
975 return LDAP_URL_ERR_BADATTRS;
983 return LDAP_URL_SUCCESS;
986 /* scan forward for '?' that may marks end of scope */
988 q = strchr( p, '?' );
991 /* terminate the scope part */
996 /* parse the scope */
997 ldap_pvt_hex_unescape( p );
998 ludp->lud_scope = str2scope( p );
1000 if( ludp->lud_scope == -1 ) {
1002 ldap_free_urldesc( ludp );
1003 return LDAP_URL_ERR_BADSCOPE;
1011 return LDAP_URL_SUCCESS;
1014 /* scan forward for '?' that may marks end of filter */
1016 q = strchr( p, '?' );
1019 /* terminate the filter part */
1024 /* parse the filter */
1025 ldap_pvt_hex_unescape( p );
1028 /* missing filter */
1030 ldap_free_urldesc( ludp );
1031 return LDAP_URL_ERR_BADFILTER;
1034 ludp->lud_filter = LDAP_STRDUP( p );
1036 if( ludp->lud_filter == NULL ) {
1038 ldap_free_urldesc( ludp );
1039 return LDAP_URL_ERR_MEM;
1047 return LDAP_URL_SUCCESS;
1050 /* scan forward for '?' that may marks end of extensions */
1052 q = strchr( p, '?' );
1057 ldap_free_urldesc( ludp );
1058 return LDAP_URL_ERR_BADURL;
1061 /* parse the extensions */
1062 ludp->lud_exts = ldap_str2charray( p, "," );
1064 if( ludp->lud_exts == NULL ) {
1066 ldap_free_urldesc( ludp );
1067 return LDAP_URL_ERR_BADEXTS;
1070 for( i=0; ludp->lud_exts[i] != NULL; i++ ) {
1071 ldap_pvt_hex_unescape( ludp->lud_exts[i] );
1073 if( *ludp->lud_exts[i] == '!' ) {
1074 /* count the number of critical extensions */
1075 ludp->lud_crit_exts++;
1080 /* must have 1 or more */
1082 ldap_free_urldesc( ludp );
1083 return LDAP_URL_ERR_BADEXTS;
1089 return LDAP_URL_SUCCESS;
1093 ldap_url_parse( LDAP_CONST char *url_in, LDAPURLDesc **ludpp )
1095 int rc = ldap_url_parse_ext( url_in, ludpp );
1097 if( rc != LDAP_URL_SUCCESS ) {
1101 if ((*ludpp)->lud_scope == LDAP_SCOPE_DEFAULT) {
1102 (*ludpp)->lud_scope = LDAP_SCOPE_BASE;
1105 if ((*ludpp)->lud_host != NULL && *(*ludpp)->lud_host == '\0') {
1106 LDAP_FREE( (*ludpp)->lud_host );
1107 (*ludpp)->lud_host = NULL;
1110 if ((*ludpp)->lud_port == 0) {
1111 if( strcmp((*ludpp)->lud_scheme, "ldap") == 0 ) {
1112 (*ludpp)->lud_port = LDAP_PORT;
1113 #ifdef LDAP_CONNECTIONLESS
1114 } else if( strcmp((*ludpp)->lud_scheme, "cldap") == 0 ) {
1115 (*ludpp)->lud_port = LDAP_PORT;
1117 } else if( strcmp((*ludpp)->lud_scheme, "ldaps") == 0 ) {
1118 (*ludpp)->lud_port = LDAPS_PORT;
1126 ldap_url_dup ( LDAPURLDesc *ludp )
1130 if ( ludp == NULL ) {
1134 dest = LDAP_MALLOC( sizeof(LDAPURLDesc) );
1139 dest->lud_scheme = NULL;
1140 dest->lud_host = NULL;
1141 dest->lud_dn = NULL;
1142 dest->lud_filter = NULL;
1143 dest->lud_attrs = NULL;
1144 dest->lud_exts = NULL;
1145 dest->lud_next = NULL;
1147 if ( ludp->lud_scheme != NULL ) {
1148 dest->lud_scheme = LDAP_STRDUP( ludp->lud_scheme );
1149 if (dest->lud_scheme == NULL) {
1150 ldap_free_urldesc(dest);
1155 if ( ludp->lud_host != NULL ) {
1156 dest->lud_host = LDAP_STRDUP( ludp->lud_host );
1157 if (dest->lud_host == NULL) {
1158 ldap_free_urldesc(dest);
1163 if ( ludp->lud_dn != NULL ) {
1164 dest->lud_dn = LDAP_STRDUP( ludp->lud_dn );
1165 if (dest->lud_dn == NULL) {
1166 ldap_free_urldesc(dest);
1171 if ( ludp->lud_filter != NULL ) {
1172 dest->lud_filter = LDAP_STRDUP( ludp->lud_filter );
1173 if (dest->lud_filter == NULL) {
1174 ldap_free_urldesc(dest);
1179 if ( ludp->lud_attrs != NULL ) {
1180 dest->lud_attrs = ldap_charray_dup( ludp->lud_attrs );
1181 if (dest->lud_attrs == NULL) {
1182 ldap_free_urldesc(dest);
1187 if ( ludp->lud_exts != NULL ) {
1188 dest->lud_exts = ldap_charray_dup( ludp->lud_exts );
1189 if (dest->lud_exts == NULL) {
1190 ldap_free_urldesc(dest);
1199 ldap_url_duplist (LDAPURLDesc *ludlist)
1201 LDAPURLDesc *dest, *tail, *ludp, *newludp;
1205 for (ludp = ludlist; ludp != NULL; ludp = ludp->lud_next) {
1206 newludp = ldap_url_dup(ludp);
1207 if (newludp == NULL) {
1208 ldap_free_urllist(dest);
1214 tail->lud_next = newludp;
1221 ldap_url_parselist_int (LDAPURLDesc **ludlist, const char *url, const char *sep,
1222 int (*url_parse)( const char *, LDAPURLDesc ** ) )
1228 assert( ludlist != NULL );
1229 assert( url != NULL );
1233 urls = ldap_str2charray(url, sep);
1235 return LDAP_URL_ERR_MEM;
1237 /* count the URLs... */
1238 for (i = 0; urls[i] != NULL; i++) ;
1239 /* ...and put them in the "stack" backward */
1241 rc = url_parse( urls[i], &ludp );
1243 ldap_charray_free(urls);
1244 ldap_free_urllist(*ludlist);
1248 ludp->lud_next = *ludlist;
1251 ldap_charray_free(urls);
1252 return LDAP_URL_SUCCESS;
1256 ldap_url_parselist (LDAPURLDesc **ludlist, const char *url )
1258 return ldap_url_parselist_int( ludlist, url, ", ", ldap_url_parse );
1262 ldap_url_parselist_ext (LDAPURLDesc **ludlist, const char *url, const char *sep )
1264 return ldap_url_parselist_int( ludlist, url, sep, ldap_url_parse_ext );
1268 ldap_url_parsehosts(
1269 LDAPURLDesc **ludlist,
1277 assert( ludlist != NULL );
1278 assert( hosts != NULL );
1282 specs = ldap_str2charray(hosts, ", ");
1284 return LDAP_NO_MEMORY;
1286 /* count the URLs... */
1287 for (i = 0; specs[i] != NULL; i++) /* EMPTY */;
1289 /* ...and put them in the "stack" backward */
1291 ludp = LDAP_CALLOC( 1, sizeof(LDAPURLDesc) );
1293 ldap_charray_free(specs);
1294 ldap_free_urllist(*ludlist);
1296 return LDAP_NO_MEMORY;
1298 ludp->lud_port = port;
1299 ludp->lud_host = specs[i];
1301 p = strchr(ludp->lud_host, ':');
1303 /* more than one :, IPv6 address */
1304 if ( strchr(p+1, ':') != NULL ) {
1305 /* allow [address] and [address]:port */
1306 if ( *ludp->lud_host == '[' ) {
1307 p = LDAP_STRDUP(ludp->lud_host+1);
1308 /* copied, make sure we free source later */
1309 specs[i] = ludp->lud_host;
1311 p = strchr( ludp->lud_host, ']' );
1313 return LDAP_PARAM_ERROR;
1317 return LDAP_PARAM_ERROR;
1328 ldap_pvt_hex_unescape(p);
1329 ludp->lud_port = strtol( p, &next, 10 );
1330 if ( next == p || next[0] != '\0' ) {
1331 return LDAP_PARAM_ERROR;
1335 ldap_pvt_hex_unescape(ludp->lud_host);
1336 ludp->lud_scheme = LDAP_STRDUP("ldap");
1337 ludp->lud_next = *ludlist;
1341 /* this should be an array of NULLs now */
1342 /* except entries starting with [ */
1343 ldap_charray_free(specs);
1344 return LDAP_SUCCESS;
1348 ldap_url_list2hosts (LDAPURLDesc *ludlist)
1352 char *s, *p, buf[32]; /* big enough to hold a long decimal # (overkill) */
1354 if (ludlist == NULL)
1357 /* figure out how big the string is */
1358 size = 1; /* nul-term */
1359 for (ludp = ludlist; ludp != NULL; ludp = ludp->lud_next) {
1360 size += strlen(ludp->lud_host) + 1; /* host and space */
1361 if (strchr(ludp->lud_host, ':')) /* will add [ ] below */
1363 if (ludp->lud_port != 0)
1364 size += sprintf(buf, ":%d", ludp->lud_port);
1366 s = LDAP_MALLOC(size);
1371 for (ludp = ludlist; ludp != NULL; ludp = ludp->lud_next) {
1372 if (strchr(ludp->lud_host, ':')) {
1373 p += sprintf(p, "[%s]", ludp->lud_host);
1375 strcpy(p, ludp->lud_host);
1376 p += strlen(ludp->lud_host);
1378 if (ludp->lud_port != 0)
1379 p += sprintf(p, ":%d", ludp->lud_port);
1383 p--; /* nuke that extra space */
1390 LDAPURLDesc *ludlist )
1396 if ( ludlist == NULL ) {
1400 /* figure out how big the string is */
1401 for ( size = 0, ludp = ludlist; ludp != NULL; ludp = ludp->lud_next ) {
1402 int len = desc2str_len( ludp );
1409 s = LDAP_MALLOC( size );
1415 for ( sofar = 0, ludp = ludlist; ludp != NULL; ludp = ludp->lud_next ) {
1418 len = desc2str( ludp, &s[sofar], size );
1431 assert( size >= 0 );
1434 s[sofar - 1] = '\0';
1440 ldap_free_urllist( LDAPURLDesc *ludlist )
1442 LDAPURLDesc *ludp, *next;
1444 for (ludp = ludlist; ludp != NULL; ludp = next) {
1445 next = ludp->lud_next;
1446 ldap_free_urldesc(ludp);
1451 ldap_free_urldesc( LDAPURLDesc *ludp )
1453 if ( ludp == NULL ) {
1457 if ( ludp->lud_scheme != NULL ) {
1458 LDAP_FREE( ludp->lud_scheme );
1461 if ( ludp->lud_host != NULL ) {
1462 LDAP_FREE( ludp->lud_host );
1465 if ( ludp->lud_dn != NULL ) {
1466 LDAP_FREE( ludp->lud_dn );
1469 if ( ludp->lud_filter != NULL ) {
1470 LDAP_FREE( ludp->lud_filter);
1473 if ( ludp->lud_attrs != NULL ) {
1474 LDAP_VFREE( ludp->lud_attrs );
1477 if ( ludp->lud_exts != NULL ) {
1478 LDAP_VFREE( ludp->lud_exts );
1485 ldap_int_is_hexpair( char *s )
1489 for ( i = 0; i < 2; i++ ) {
1490 if ( s[i] >= '0' && s[i] <= '9' ) {
1494 if ( s[i] >= 'A' && s[i] <= 'F' ) {
1498 if ( s[i] >= 'a' && s[i] <= 'f' ) {
1509 ldap_int_unhex( int c )
1511 return( c >= '0' && c <= '9' ? c - '0'
1512 : c >= 'A' && c <= 'F' ? c - 'A' + 10
1517 ldap_pvt_hex_unescape( char *s )
1520 * Remove URL hex escapes from s... done in place. The basic concept for
1521 * this routine is borrowed from the WWW library HTUnEscape() routine.
1526 for ( p = s; *s != '\0'; ++s ) {
1529 * FIXME: what if '%' is followed
1530 * by non-hexpair chars?
1532 if ( !ldap_int_is_hexpair( s + 1 ) ) {
1537 if ( *++s == '\0' ) {
1540 *p = ldap_int_unhex( *s ) << 4;
1541 if ( *++s == '\0' ) {
1544 *p++ += ldap_int_unhex( *s );