diff options
Diffstat (limited to 'ldap/c-sdk/libraries/libldap/getattr.c')
| -rw-r--r-- | ldap/c-sdk/libraries/libldap/getattr.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/ldap/c-sdk/libraries/libldap/getattr.c b/ldap/c-sdk/libraries/libldap/getattr.c new file mode 100644 index 000000000..fbe688fea --- /dev/null +++ b/ldap/c-sdk/libraries/libldap/getattr.c @@ -0,0 +1,150 @@ +/* ***** 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) 1990 Regents of the University of Michigan. + * All rights reserved. + */ +/* + * getattr.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" + + +static unsigned long +bytes_remaining( BerElement *ber ) +{ + ber_len_t len; + + if ( ber_get_option( ber, LBER_OPT_REMAINING_BYTES, &len ) != 0 ) { + return( 0 ); /* not sure what else to do.... */ + } + return( len ); +} + + +char * +LDAP_CALL +ldap_first_attribute( LDAP *ld, LDAPMessage *entry, BerElement **ber ) +{ + char *attr; + int err; + ber_len_t seqlength; + + LDAPDebug( LDAP_DEBUG_TRACE, "ldap_first_attribute\n", 0, 0, 0 ); + + if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) { + return( NULL ); /* punt */ + } + + if ( ber == NULL || !NSLDAPI_VALID_LDAPMESSAGE_ENTRY_POINTER( entry )) { + LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL ); + return( NULL ); + } + + if ( nsldapi_alloc_ber_with_options( ld, ber ) != LDAP_SUCCESS ) { + return( NULL ); + } + + **ber = *entry->lm_ber; + + attr = NULL; /* pessimistic */ + err = LDAP_DECODING_ERROR; /* ditto */ + + /* + * Skip past the sequence, dn, and sequence of sequence. + * Reset number of bytes remaining so we confine the rest of our + * decoding to the current sequence. + */ + if ( ber_scanf( *ber, "{xl{", &seqlength ) != LBER_ERROR && + ber_set_option( *ber, LBER_OPT_REMAINING_BYTES, &seqlength ) + == 0 ) { + /* snarf the attribute type, and skip the set of values, + * leaving us positioned right before the next attribute + * type/value sequence. + */ + if ( ber_scanf( *ber, "{ax}", &attr ) != LBER_ERROR || + bytes_remaining( *ber ) == 0 ) { + err = LDAP_SUCCESS; + } + } + + LDAP_SET_LDERRNO( ld, err, NULL, NULL ); + if ( attr == NULL || err != LDAP_SUCCESS ) { + ber_free( *ber, 0 ); + *ber = NULL; + } + return( attr ); +} + +/* ARGSUSED */ +char * +LDAP_CALL +ldap_next_attribute( LDAP *ld, LDAPMessage *entry, BerElement *ber ) +{ + char *attr; + int err; + + LDAPDebug( LDAP_DEBUG_TRACE, "ldap_next_attribute\n", 0, 0, 0 ); + + if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) { + return( NULL ); /* punt */ + } + + if ( ber == NULL || !NSLDAPI_VALID_LDAPMESSAGE_ENTRY_POINTER( entry )) { + LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL ); + return( NULL ); + } + + attr = NULL; /* pessimistic */ + err = LDAP_DECODING_ERROR; /* ditto */ + + /* skip sequence, snarf attribute type, skip values */ + if ( ber_scanf( ber, "{ax}", &attr ) != LBER_ERROR || + bytes_remaining( ber ) == 0 ) { + err = LDAP_SUCCESS; + } + + LDAP_SET_LDERRNO( ld, err, NULL, NULL ); + return( attr ); +} |