openldap/servers/slapd/suffixalias.c
1999-04-03 03:28:17 +00:00

68 lines
1.9 KiB
C

/*
* Copyright 1999 The OpenLDAP Foundation, All Rights Reserved.
*
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file in the top level
* directory of this package.
*/
/* Portions
* Copyright (c) 1998 Will Ballantyne, ITSD, Government of BC
* 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 ITSD, Government of BC. The name of ITSD
* 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.
*/
#include "portable.h"
#include <stdio.h>
#include <string.h>
#include <ac/socket.h> /* Get struct sockaddr for slap.h */
#include "slap.h"
/*
* given a normalized uppercased dn (or root part), return an aliased dn if any of the
* alias suffixes match
*/
char *suffixAlias (char *dn, Operation *op, Backend *be)
{
int i, dnLength;
if(dn == NULL) return NULL;
dnLength = strlen ( dn );
for ( i = 0;
be->be_suffixAlias != NULL && be->be_suffixAlias[i] != NULL;
i += 2) {
int aliasLength = strlen (be->be_suffixAlias[i]);
int diff = dnLength - aliasLength;
if ( diff < 0 ) {
/* alias is longer than dn */
continue;
} else if ( diff > 0 ) {
if ( ! DNSEPARATOR(dn[diff-1]) ) {
/* boundary is not at a DN separator */
continue;
}
/* At a DN Separator */
/* XXX or an escaped separator... oh well */
}
if (!strcmp(be->be_suffixAlias[i], &dn[diff])) {
char *oldDN = dn;
dn = ch_malloc( diff + strlen(be->be_suffixAlias[i+1]) + 1 );
strncpy( dn, oldDN, diff );
strcpy( &dn[diff], be->be_suffixAlias[i+1] );
Debug( LDAP_DEBUG_ARGS, "SuffixAlias: converted \"%s\" to \"%s\"\n",
oldDN, dn, 0);
free (oldDN);
break;
}
}
return dn;
}