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/* compare.c - shell backend compare function */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2018 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
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
/* ACKNOWLEDGEMENTS:
* This work was originally developed by the University of Michigan
* (as part of U-MICH LDAP).
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "shell.h"
int
shell_back_compare(
Operation *op,
SlapReply *rs )
{
struct shellinfo *si = (struct shellinfo *) op->o_bd->be_private;
AttributeDescription *entry = slap_schema.si_ad_entry;
Entry e;
FILE *rfp, *wfp;
if ( si->si_compare == NULL ) {
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"compare not implemented" );
return( -1 );
}
e.e_id = NOID;
e.e_name = op->o_req_dn;
e.e_nname = op->o_req_ndn;
e.e_attrs = NULL;
e.e_ocflags = 0;
e.e_bv.bv_len = 0;
e.e_bv.bv_val = NULL;
e.e_private = NULL;
if ( ! access_allowed( op, &e,
entry, NULL, ACL_READ, NULL ) )
{
send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS, NULL );
return -1;
}
if ( forkandexec( si->si_compare, &rfp, &wfp ) == (pid_t)-1 ) {
send_ldap_error( op, rs, LDAP_OTHER,
"could not fork/exec" );
return( -1 );
}
/*
* FIX ME: This should use LDIF routines so that binary
* values are properly dealt with
*/
/* write out the request to the compare process */
fprintf( wfp, "COMPARE\n" );
fprintf( wfp, "msgid: %ld\n", (long) op->o_msgid );
print_suffixes( wfp, op->o_bd );
fprintf( wfp, "dn: %s\n", op->o_req_dn.bv_val );
fprintf( wfp, "%s: %s\n",
op->oq_compare.rs_ava->aa_desc->ad_cname.bv_val,
op->oq_compare.rs_ava->aa_value.bv_val /* could be binary! */ );
fclose( wfp );
/* read in the result and send it along */
read_and_send_results( op, rs, rfp );
fclose( rfp );
return( 0 );
}
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