1/* compare.c - sock backend compare function */
2/* $OpenLDAP$ */
3/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 *
5 * Copyright 1998-2011 The OpenLDAP Foundation.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
10 * Public License.
11 *
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
15 */
16/* ACKNOWLEDGEMENTS:
17 * This work was initially developed by Brian Candler for inclusion
18 * in OpenLDAP Software.
19 */
20
21#include "portable.h"
22
23#include <stdio.h>
24
25#include <ac/string.h>
26#include <ac/socket.h>
27
28#include "slap.h"
29#include "back-sock.h"
30#include "ldif.h"
31
32int
33sock_back_compare(
34    Operation	*op,
35    SlapReply	*rs )
36{
37	struct sockinfo	*si = (struct sockinfo *) op->o_bd->be_private;
38	AttributeDescription *entry = slap_schema.si_ad_entry;
39	Entry e;
40	FILE			*fp;
41	char *text;
42
43	e.e_id = NOID;
44	e.e_name = op->o_req_dn;
45	e.e_nname = op->o_req_ndn;
46	e.e_attrs = NULL;
47	e.e_ocflags = 0;
48	e.e_bv.bv_len = 0;
49	e.e_bv.bv_val = NULL;
50	e.e_private = NULL;
51
52	if ( ! access_allowed( op, &e,
53		entry, NULL, ACL_COMPARE, NULL ) )
54	{
55		send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS, NULL );
56		return -1;
57	}
58
59	if ( (fp = opensock( si->si_sockpath )) == NULL ) {
60		send_ldap_error( op, rs, LDAP_OTHER,
61		    "could not open socket" );
62		return( -1 );
63	}
64
65	/* write out the request to the compare process */
66	fprintf( fp, "COMPARE\n" );
67	fprintf( fp, "msgid: %ld\n", (long) op->o_msgid );
68	sock_print_conn( fp, op->o_conn, si );
69	sock_print_suffixes( fp, op->o_bd );
70	fprintf( fp, "dn: %s\n", op->o_req_dn.bv_val );
71	/* could be binary */
72	text = ldif_put_wrap( LDIF_PUT_VALUE,
73		op->orc_ava->aa_desc->ad_cname.bv_val,
74		op->orc_ava->aa_value.bv_val,
75		op->orc_ava->aa_value.bv_len, LDIF_LINE_WIDTH_MAX );
76	if ( text ) {
77		fprintf( fp, "%s\n", text );
78		ber_memfree( text );
79	} else {
80		fprintf( fp, "\n\n" );
81	}
82
83	/* read in the result and send it along */
84	sock_read_and_send_results( op, rs, fp );
85
86	fclose( fp );
87	return( 0 );
88}
89