mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
376 lines
8.3 KiB
C
376 lines
8.3 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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* search.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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/*
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* ldap_search_ext - initiate an ldap search operation.
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*
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* Parameters:
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*
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* ld LDAP descriptor
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* base DN of the base object
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* scope the search scope - one of LDAP_SCOPE_BASE,
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* LDAP_SCOPE_ONELEVEL, LDAP_SCOPE_SUBTREE
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* filter a string containing the search filter
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* (e.g., "(|(cn=bob)(sn=bob))")
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* attrs list of attribute types to return for matches
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* attrsonly 1 => attributes only 0 => attributes and values
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*
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* Example:
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* char *attrs[] = { "mail", "title", 0 };
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* ldap_search_ext( ld, "dc=example,dc=com", LDAP_SCOPE_SUBTREE, "cn~=bob",
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* attrs, attrsonly, sctrls, ctrls, timeout, sizelimit,
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* &msgid );
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*/
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int
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ldap_search_ext(
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LDAP *ld,
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LDAP_CONST char *base,
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int scope,
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LDAP_CONST char *filter,
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char **attrs,
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int attrsonly,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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struct timeval *timeout,
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int sizelimit,
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int *msgidp )
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{
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int rc;
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BerElement *ber;
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int timelimit;
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Debug( LDAP_DEBUG_TRACE, "ldap_search_ext\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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/* check client controls */
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rc = ldap_int_client_controls( ld, cctrls );
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if( rc != LDAP_SUCCESS ) return rc;
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/*
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* if timeout is provided, both tv_sec and tv_usec must
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* be non-zero
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*/
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if( timeout != NULL ) {
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if( timeout->tv_sec == 0 && timeout->tv_usec == 0 ) {
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return LDAP_PARAM_ERROR;
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}
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/* timelimit must be non-zero if timeout is provided */
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timelimit = timeout->tv_sec != 0 ? timeout->tv_sec : 1;
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} else {
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/* no timeout, no timelimit */
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timelimit = -1;
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}
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ber = ldap_build_search_req( ld, base, scope, filter, attrs,
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attrsonly, sctrls, cctrls, timelimit, sizelimit );
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if ( ber == NULL ) {
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return ld->ld_errno;
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}
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#ifndef LDAP_NOCACHE
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if ( ld->ld_cache != NULL ) {
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if ( ldap_check_cache( ld, LDAP_REQ_SEARCH, ber ) == 0 ) {
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ber_free( ber, 1 );
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ld->ld_errno = LDAP_SUCCESS;
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*msgidp = ld->ld_msgid;
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return ld->ld_errno;
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}
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ldap_add_request_to_cache( ld, LDAP_REQ_SEARCH, ber );
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}
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#endif /* LDAP_NOCACHE */
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/* send the message */
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*msgidp = ldap_send_initial_request( ld, LDAP_REQ_SEARCH, base, ber );
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if( *msgidp < 0 )
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return ld->ld_errno;
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return LDAP_SUCCESS;
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}
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int
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ldap_search_ext_s(
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LDAP *ld,
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LDAP_CONST char *base,
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int scope,
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LDAP_CONST char *filter,
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char **attrs,
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int attrsonly,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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struct timeval *timeout,
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int sizelimit,
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LDAPMessage **res )
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{
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int rc;
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int msgid;
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rc = ldap_search_ext( ld, base, scope, filter, attrs, attrsonly,
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sctrls, cctrls, timeout, sizelimit, &msgid );
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if ( rc != LDAP_SUCCESS ) {
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return( rc );
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}
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rc = ldap_result( ld, msgid, 1, timeout, res );
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if( rc <= 0 ) {
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/* error(-1) or timeout(0) */
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return( ld->ld_errno );
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}
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if( rc == LDAP_RES_SEARCH_REFERENCE || rc == LDAP_RES_EXTENDED_PARTIAL ) {
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return( ld->ld_errno );
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}
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return( ldap_result2error( ld, *res, 0 ) );
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}
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/*
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* ldap_search - initiate an ldap search operation.
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*
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* Parameters:
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*
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* ld LDAP descriptor
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* base DN of the base object
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* scope the search scope - one of LDAP_SCOPE_BASE,
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* LDAP_SCOPE_ONELEVEL, LDAP_SCOPE_SUBTREE
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* filter a string containing the search filter
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* (e.g., "(|(cn=bob)(sn=bob))")
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* attrs list of attribute types to return for matches
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* attrsonly 1 => attributes only 0 => attributes and values
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*
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* Example:
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* char *attrs[] = { "mail", "title", 0 };
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* msgid = ldap_search( ld, "dc=example,dc=com", LDAP_SCOPE_SUBTREE, "cn~=bob",
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* attrs, attrsonly );
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*/
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int
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ldap_search(
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LDAP *ld, LDAP_CONST char *base, int scope, LDAP_CONST char *filter,
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char **attrs, int attrsonly )
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{
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BerElement *ber;
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Debug( LDAP_DEBUG_TRACE, "ldap_search\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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ber = ldap_build_search_req( ld, base, scope, filter, attrs,
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attrsonly, NULL, NULL, -1, -1 );
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if ( ber == NULL ) {
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return( -1 );
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}
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#ifndef LDAP_NOCACHE
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if ( ld->ld_cache != NULL ) {
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if ( ldap_check_cache( ld, LDAP_REQ_SEARCH, ber ) == 0 ) {
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ber_free( ber, 1 );
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ld->ld_errno = LDAP_SUCCESS;
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return( ld->ld_msgid );
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}
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ldap_add_request_to_cache( ld, LDAP_REQ_SEARCH, ber );
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}
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#endif /* LDAP_NOCACHE */
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/* send the message */
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return ( ldap_send_initial_request( ld, LDAP_REQ_SEARCH, base, ber ));
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}
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BerElement *
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ldap_build_search_req(
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LDAP *ld,
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LDAP_CONST char *base,
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ber_int_t scope,
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LDAP_CONST char *filter_in,
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char **attrs,
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ber_int_t attrsonly,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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ber_int_t timelimit,
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ber_int_t sizelimit )
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{
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BerElement *ber;
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int err;
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char *filter;
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/*
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* Create the search request. It looks like this:
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* SearchRequest := [APPLICATION 3] SEQUENCE {
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* baseObject DistinguishedName,
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* scope ENUMERATED {
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* baseObject (0),
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* singleLevel (1),
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* wholeSubtree (2)
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* },
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* derefAliases ENUMERATED {
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* neverDerefaliases (0),
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* derefInSearching (1),
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* derefFindingBaseObj (2),
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* alwaysDerefAliases (3)
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* },
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* sizelimit INTEGER (0 .. 65535),
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* timelimit INTEGER (0 .. 65535),
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* attrsOnly BOOLEAN,
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* filter Filter,
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* attributes SEQUENCE OF AttributeType
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* }
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* wrapped in an ldap message.
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*/
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/* create a message to send */
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if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
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return( NULL );
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}
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if ( base == NULL ) {
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/* no base provided, use session default base */
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base = ld->ld_options.ldo_defbase;
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if ( base == NULL ) {
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/* no session default base, use top */
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base = "";
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}
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}
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#ifdef LDAP_CONNECTIONLESS
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if ( LDAP_IS_UDP(ld) ) {
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err = ber_write( ber, ld->ld_options.ldo_peer,
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sizeof(struct sockaddr), 0);
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}
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if ( LDAP_IS_UDP(ld) && ld->ld_options.ldo_version == LDAP_VERSION2) {
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char *dn = ld->ld_options.ldo_cldapdn;
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if (!dn) dn = "";
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err = ber_printf( ber, "{ist{seeiib", ++ld->ld_msgid, dn,
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LDAP_REQ_SEARCH, base, (ber_int_t) scope, ld->ld_deref,
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(sizelimit < 0) ? ld->ld_sizelimit : sizelimit,
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(timelimit < 0) ? ld->ld_timelimit : timelimit,
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attrsonly );
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} else
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#endif
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{
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err = ber_printf( ber, "{it{seeiib", ++ld->ld_msgid,
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LDAP_REQ_SEARCH, base, (ber_int_t) scope, ld->ld_deref,
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(sizelimit < 0) ? ld->ld_sizelimit : sizelimit,
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(timelimit < 0) ? ld->ld_timelimit : timelimit,
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attrsonly );
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}
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if ( err == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return( NULL );
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}
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if( filter_in != NULL ) {
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filter = LDAP_STRDUP( filter_in );
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} else {
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filter = LDAP_STRDUP( "(objectclass=*)" );
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}
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err = ldap_int_put_filter( ber, filter );
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LDAP_FREE( filter );
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if ( err == -1 ) {
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ld->ld_errno = LDAP_FILTER_ERROR;
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ber_free( ber, 1 );
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return( NULL );
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}
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if ( ber_printf( ber, /*{*/ "{v}N}", attrs ) == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return( NULL );
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}
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/* Put Server Controls */
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if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) {
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ber_free( ber, 1 );
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return( NULL );
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}
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if ( ber_printf( ber, /*{*/ "N}" ) == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return( NULL );
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}
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return( ber );
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}
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int
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ldap_search_st(
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LDAP *ld, LDAP_CONST char *base, int scope,
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LDAP_CONST char *filter, char **attrs,
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int attrsonly, struct timeval *timeout, LDAPMessage **res )
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{
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int msgid;
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if ( (msgid = ldap_search( ld, base, scope, filter, attrs, attrsonly ))
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== -1 )
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return( ld->ld_errno );
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if ( ldap_result( ld, msgid, 1, timeout, res ) == -1 )
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return( ld->ld_errno );
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if ( ld->ld_errno == LDAP_TIMEOUT ) {
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(void) ldap_abandon( ld, msgid );
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ld->ld_errno = LDAP_TIMEOUT;
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return( ld->ld_errno );
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}
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return( ldap_result2error( ld, *res, 0 ) );
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}
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int
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ldap_search_s(
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LDAP *ld,
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LDAP_CONST char *base,
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int scope,
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LDAP_CONST char *filter,
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char **attrs,
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int attrsonly,
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LDAPMessage **res )
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{
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int msgid;
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if ( (msgid = ldap_search( ld, base, scope, filter, attrs, attrsonly ))
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== -1 )
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return( ld->ld_errno );
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if ( ldap_result( ld, msgid, 1, (struct timeval *) NULL, res ) == -1 )
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return( ld->ld_errno );
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return( ldap_result2error( ld, *res, 0 ) );
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}
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