diff options
Diffstat (limited to 'ldap/c-sdk/libraries/libldap/getdn.c')
| -rw-r--r-- | ldap/c-sdk/libraries/libldap/getdn.c | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/ldap/c-sdk/libraries/libldap/getdn.c b/ldap/c-sdk/libraries/libldap/getdn.c new file mode 100644 index 000000000..4fab52cc6 --- /dev/null +++ b/ldap/c-sdk/libraries/libldap/getdn.c @@ -0,0 +1,371 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Mozilla Communicator client code, released + * March 31, 1998. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-1999 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ +/* + * Copyright (c) 1994 Regents of the University of Michigan. + * All rights reserved. + */ +/* + * getdn.c + */ + +#if 0 +#ifndef lint +static char copyright[] = "@(#) Copyright (c) 1990 Regents of the University of Michigan.\nAll rights reserved.\n"; +#endif +#endif + +#include "ldap-int.h" + +char * +LDAP_CALL +ldap_get_dn( LDAP *ld, LDAPMessage *entry ) +{ + char *dn; + struct berelement tmp; + + LDAPDebug( LDAP_DEBUG_TRACE, "ldap_get_dn\n", 0, 0, 0 ); + + if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) { + return( NULL ); /* punt */ + } + + if ( !NSLDAPI_VALID_LDAPMESSAGE_ENTRY_POINTER( entry )) { + LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL ); + return( NULL ); + } + + tmp = *entry->lm_ber; /* struct copy */ + if ( ber_scanf( &tmp, "{a", &dn ) == LBER_ERROR ) { + LDAP_SET_LDERRNO( ld, LDAP_DECODING_ERROR, NULL, NULL ); + return( NULL ); + } + + return( dn ); +} + +char * +LDAP_CALL +ldap_dn2ufn( const char *dn ) +{ + char *p, *ufn, *r; + size_t plen; + int state; + + LDAPDebug( LDAP_DEBUG_TRACE, "ldap_dn2ufn\n", 0, 0, 0 ); + + if ( dn == NULL ) { + dn = ""; + } + + if ( ldap_is_dns_dn( dn ) || ( p = strchr( dn, '=' )) == NULL ) + return( nsldapi_strdup( (char *)dn )); + + ufn = nsldapi_strdup( ++p ); + +#define INQUOTE 1 +#define OUTQUOTE 2 + state = OUTQUOTE; + for ( p = ufn, r = ufn; *p; p += plen ) { + plen = 1; + switch ( *p ) { + case '\\': + if ( *++p == '\0' ) + plen=0; + else { + *r++ = '\\'; + r += (plen = LDAP_UTF8COPY(r,p)); + } + break; + case '"': + if ( state == INQUOTE ) + state = OUTQUOTE; + else + state = INQUOTE; + *r++ = *p; + break; + case ';': + case ',': + if ( state == OUTQUOTE ) + *r++ = ','; + else + *r++ = *p; + break; + case '=': + if ( state == INQUOTE ) + *r++ = *p; + else { + char *rsave = r; + LDAP_UTF8DEC(r); + *rsave = '\0'; + while ( !ldap_utf8isspace( r ) && *r != ';' + && *r != ',' && r > ufn ) + LDAP_UTF8DEC(r); + LDAP_UTF8INC(r); + + if ( strcasecmp( r, "c" ) + && strcasecmp( r, "o" ) + && strcasecmp( r, "ou" ) + && strcasecmp( r, "st" ) + && strcasecmp( r, "l" ) + && strcasecmp( r, "dc" ) + && strcasecmp( r, "uid" ) + && strcasecmp( r, "cn" ) ) { + r = rsave; + *r++ = '='; + } + } + break; + default: + r += (plen = LDAP_UTF8COPY(r,p)); + break; + } + } + *r = '\0'; + + return( ufn ); +} + +char ** +LDAP_CALL +ldap_explode_dns( const char *dn ) +{ + int ncomps, maxcomps; + char *s, *cpydn; + char **rdns; +#ifdef HAVE_STRTOK_R /* defined in portable.h */ + char *lasts; +#endif + + if ( dn == NULL ) { + dn = ""; + } + + if ( (rdns = (char **)NSLDAPI_MALLOC( 8 * sizeof(char *) )) == NULL ) { + return( NULL ); + } + + maxcomps = 8; + ncomps = 0; + cpydn = nsldapi_strdup( (char *)dn ); + for ( s = STRTOK( cpydn, "@.", &lasts ); s != NULL; + s = STRTOK( NULL, "@.", &lasts ) ) { + if ( ncomps == maxcomps ) { + maxcomps *= 2; + if ( (rdns = (char **)NSLDAPI_REALLOC( rdns, maxcomps * + sizeof(char *) )) == NULL ) { + NSLDAPI_FREE( cpydn ); + return( NULL ); + } + } + rdns[ncomps++] = nsldapi_strdup( s ); + } + rdns[ncomps] = NULL; + NSLDAPI_FREE( cpydn ); + + return( rdns ); +} + +#define LDAP_DN 1 +#define LDAP_RDN 2 + +static char ** +ldap_explode( const char *dn, const int notypes, const int nametype ) +{ + char *p, *q, *rdnstart, **rdns = NULL; + size_t plen = 0; + int state = 0; + int count = 0; + int startquote = 0; + int endquote = 0; + int len = 0; + int goteq = 0; + + LDAPDebug( LDAP_DEBUG_TRACE, "ldap_explode\n", 0, 0, 0 ); + + if ( dn == NULL ) { + dn = ""; + } + +#if 0 + if ( ldap_is_dns_dn( dn ) ) { + return( ldap_explode_dns( dn ) ); + } +#endif + + while ( ldap_utf8isspace( (char *)dn )) { /* ignore leading spaces */ + ++dn; + } + + p = rdnstart = (char *) dn; + state = OUTQUOTE; + + do { + p += plen; + plen = 1; + switch ( *p ) { + case '\\': + if ( *++p == '\0' ) + p--; + else + plen = LDAP_UTF8LEN(p); + break; + case '"': + if ( state == INQUOTE ) + state = OUTQUOTE; + else + state = INQUOTE; + break; + case '+': if ( nametype != LDAP_RDN ) break; + case ';': + case ',': + case '\0': + if ( state == OUTQUOTE ) { + /* + * semicolon and comma are not valid RDN + * separators. + */ + if ( nametype == LDAP_RDN && + ( *p == ';' || *p == ',' || !goteq)) { + ldap_charray_free( rdns ); + return NULL; + } + if ( (*p == ',' || *p == ';') && !goteq ) { + /* If we get here, we have a case similar + * to <attr>=<value>,<string>,<attr>=<value> + * This is not a valid dn */ + ldap_charray_free( rdns ); + return NULL; + } + goteq = 0; + ++count; + if ( rdns == NULL ) { + if (( rdns = (char **)NSLDAPI_MALLOC( 8 + * sizeof( char *))) == NULL ) + return( NULL ); + } else if ( count >= 8 ) { + if (( rdns = (char **)NSLDAPI_REALLOC( + rdns, (count+1) * + sizeof( char *))) == NULL ) + return( NULL ); + } + rdns[ count ] = NULL; + endquote = 0; + if ( notypes ) { + for ( q = rdnstart; + q < p && *q != '='; ++q ) { + ; + } + if ( q < p ) { /* *q == '=' */ + rdnstart = ++q; + } + if ( *rdnstart == '"' ) { + startquote = 1; + ++rdnstart; + } + + if ( (*(p-1) == '"') && startquote ) { + endquote = 1; + --p; + } + } + + len = p - rdnstart; + if (( rdns[ count-1 ] = (char *)NSLDAPI_CALLOC( + 1, len + 1 )) != NULL ) { + SAFEMEMCPY( rdns[ count-1 ], rdnstart, + len ); + if ( !endquote ) { + /* trim trailing spaces unless + * they are properly escaped */ + while ( len > 0 && + ldap_utf8isspace( + &rdns[count-1][len-1] ) && + ((len == 1) || (rdns[count-1][len-2] != '\\'))) { + --len; + } + } + rdns[ count-1 ][ len ] = '\0'; + } + + /* + * Don't forget to increment 'p' back to where + * it should be. If we don't, then we will + * never get past an "end quote." + */ + if ( endquote == 1 ) + p++; + + rdnstart = *p ? p + 1 : p; + while ( ldap_utf8isspace( rdnstart )) + ++rdnstart; + } + break; + case '=': + if ( state == OUTQUOTE ) { + goteq = 1; + } + /* FALL */ + default: + plen = LDAP_UTF8LEN(p); + break; + } + } while ( *p ); + + return( rdns ); +} + +char ** +LDAP_CALL +ldap_explode_dn( const char *dn, const int notypes ) +{ + return( ldap_explode( dn, notypes, LDAP_DN ) ); +} + +char ** +LDAP_CALL +ldap_explode_rdn( const char *rdn, const int notypes ) +{ + return( ldap_explode( rdn, notypes, LDAP_RDN ) ); +} + +int +LDAP_CALL +ldap_is_dns_dn( const char *dn ) +{ + return( dn != NULL && dn[ 0 ] != '\0' && strchr( dn, '=' ) == NULL && + strchr( dn, ',' ) == NULL ); +} |