/* $NetBSD: compare.c,v 1.1.1.6.6.1 2019/08/10 06:17:14 martin Exp $ */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2019 The OpenLDAP Foundation. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in the file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ /* Portions Copyright (c) 1990 Regents of the University of Michigan. * All rights reserved. */ #include __RCSID("$NetBSD: compare.c,v 1.1.1.6.6.1 2019/08/10 06:17:14 martin Exp $"); #include "portable.h" #include #include #include #include #include "ldap-int.h" #include "ldap_log.h" /* The compare request looks like this: * CompareRequest ::= SEQUENCE { * entry DistinguishedName, * ava SEQUENCE { * type AttributeType, * value AttributeValue * } * } */ BerElement * ldap_build_compare_req( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *attr, struct berval *bvalue, LDAPControl **sctrls, LDAPControl **cctrls, int *msgidp ) { BerElement *ber; int rc; /* create a message to send */ if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) { return( NULL ); } LDAP_NEXT_MSGID(ld, *msgidp); rc = ber_printf( ber, "{it{s{sON}N}", /* '}' */ *msgidp, LDAP_REQ_COMPARE, dn, attr, bvalue ); if ( rc == -1 ) { ld->ld_errno = LDAP_ENCODING_ERROR; ber_free( ber, 1 ); return( NULL ); } /* Put Server Controls */ if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) { ber_free( ber, 1 ); return( NULL ); } if( ber_printf( ber, /*{*/ "N}" ) == -1 ) { ld->ld_errno = LDAP_ENCODING_ERROR; ber_free( ber, 1 ); return( NULL ); } return( ber ); } /* * ldap_compare_ext - perform an ldap extended compare operation. The dn * of the entry to compare to and the attribute and value to compare (in * attr and value) are supplied. The msgid of the response is returned. * * Example: * struct berval bvalue = { "secret", sizeof("secret")-1 }; * rc = ldap_compare( ld, "c=us@cn=bob", * "userPassword", &bvalue, * sctrl, cctrl, &msgid ) */ int ldap_compare_ext( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *attr, struct berval *bvalue, LDAPControl **sctrls, LDAPControl **cctrls, int *msgidp ) { int rc; BerElement *ber; ber_int_t id; Debug( LDAP_DEBUG_TRACE, "ldap_compare\n", 0, 0, 0 ); assert( ld != NULL ); assert( LDAP_VALID( ld ) ); assert( dn != NULL ); assert( attr != NULL ); assert( msgidp != NULL ); /* check client controls */ rc = ldap_int_client_controls( ld, cctrls ); if( rc != LDAP_SUCCESS ) return rc; ber = ldap_build_compare_req( ld, dn, attr, bvalue, sctrls, cctrls, &id ); if( !ber ) return ld->ld_errno; /* send the message */ *msgidp = ldap_send_initial_request( ld, LDAP_REQ_COMPARE, dn, ber, id ); return ( *msgidp < 0 ? ld->ld_errno : LDAP_SUCCESS ); } /* * ldap_compare_ext - perform an ldap extended compare operation. The dn * of the entry to compare to and the attribute and value to compare (in * attr and value) are supplied. The msgid of the response is returned. * * Example: * msgid = ldap_compare( ld, "c=us@cn=bob", "userPassword", "secret" ) */ int ldap_compare( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *attr, LDAP_CONST char *value ) { int msgid; struct berval bvalue; assert( value != NULL ); bvalue.bv_val = (char *) value; bvalue.bv_len = (value == NULL) ? 0 : strlen( value ); return ldap_compare_ext( ld, dn, attr, &bvalue, NULL, NULL, &msgid ) == LDAP_SUCCESS ? msgid : -1; } int ldap_compare_ext_s( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *attr, struct berval *bvalue, LDAPControl **sctrl, LDAPControl **cctrl ) { int rc; int msgid; LDAPMessage *res; rc = ldap_compare_ext( ld, dn, attr, bvalue, sctrl, cctrl, &msgid ); if ( rc != LDAP_SUCCESS ) return( rc ); if ( ldap_result( ld, msgid, LDAP_MSG_ALL, (struct timeval *) NULL, &res ) == -1 || !res ) return( ld->ld_errno ); return( ldap_result2error( ld, res, 1 ) ); } int ldap_compare_s( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *attr, LDAP_CONST char *value ) { struct berval bvalue; assert( value != NULL ); bvalue.bv_val = (char *) value; bvalue.bv_len = (value == NULL) ? 0 : strlen( value ); return ldap_compare_ext_s( ld, dn, attr, &bvalue, NULL, NULL ); }