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114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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/* Portions
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* Copyright (c) 1990 Regents of the University of Michigan.
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* All rights reserved.
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*
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* getattr.c
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include "ldap-int.h"
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char *
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ldap_first_attribute( LDAP *ld, LDAPMessage *entry, BerElement **berout )
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{
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int rc;
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ber_tag_t tag;
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ber_len_t len = 0;
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char *attr;
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BerElement *ber;
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Debug( LDAP_DEBUG_TRACE, "ldap_first_attribute\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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assert( entry != NULL );
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assert( berout != NULL );
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*berout = NULL;
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ber = ldap_alloc_ber_with_options( ld );
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if( ber == NULL ) {
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return NULL;
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}
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*ber = *entry->lm_ber;
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/*
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* Skip past the sequence, dn, sequence of sequence leaving
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* us at the first attribute.
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*/
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tag = ber_scanf( ber, "{xl{" /*}}*/, &len );
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if( tag == LBER_ERROR ) {
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ld->ld_errno = LDAP_DECODING_ERROR;
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ber_free( ber, 0 );
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return NULL;
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}
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/* set the length to avoid overrun */
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rc = ber_set_option( ber, LBER_OPT_REMAINING_BYTES, &len );
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if( rc != LBER_OPT_SUCCESS ) {
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ld->ld_errno = LDAP_LOCAL_ERROR;
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ber_free( ber, 0 );
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return NULL;
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}
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if ( ber_pvt_ber_remaining( ber ) == 0 ) {
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assert( len == 0 );
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return NULL;
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}
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assert( len != 0 );
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/* snatch the first attribute */
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tag = ber_scanf( ber, "{ax}", &attr );
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if( tag == LBER_ERROR ) {
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ld->ld_errno = LDAP_DECODING_ERROR;
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ber_free( ber, 0 );
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return NULL;
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}
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*berout = ber;
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return attr;
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}
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/* ARGSUSED */
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char *
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ldap_next_attribute( LDAP *ld, LDAPMessage *entry, BerElement *ber )
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{
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ber_tag_t tag;
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char *attr;
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Debug( LDAP_DEBUG_TRACE, "ldap_next_attribute\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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assert( entry != NULL );
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assert( ber != NULL );
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if ( ber_pvt_ber_remaining( ber ) == 0 ) {
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return NULL;
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}
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/* skip sequence, snarf attribute type, skip values */
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tag = ber_scanf( ber, "{ax}", &attr );
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if( tag == LBER_ERROR ) {
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ld->ld_errno = LDAP_DECODING_ERROR;
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return NULL;
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}
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return attr;
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}
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