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118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/* suffixmassage.c - massages ldap backend dns */
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/* $OpenLDAP$ */
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/*
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* Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
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* Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
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*
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* Module back-ldap, originally developed by Howard Chu
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*
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* has been modified by Pierangelo Masarati. The original copyright
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* notice has been maintained.
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*
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* Permission is granted to anyone to use this software for any purpose
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* on any computer system, and to alter it and redistribute it, subject
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* to the following restrictions:
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*
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* 1. The author is not responsible for the consequences of use of this
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* software, no matter how awful, even if they arise from flaws in it.
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*
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* 2. The origin of this software must not be misrepresented, either by
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* explicit claim or by omission. Since few users ever read sources,
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* credits should appear in the documentation.
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*
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* 3. Altered versions must be plainly marked as such, and must not be
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* misrepresented as being the original software. Since few users
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* ever read sources, credits should appear in the documentation.
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*
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* 4. This notice may not be removed or altered.
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*/
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#include "portable.h"
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#ifndef ENABLE_REWRITE
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#include <stdio.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "back-ldap.h"
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/*
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* ldap_back_dn_massage
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*
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* Aliases the suffix; based on suffix_alias (servers/slapd/suffixalias.c).
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*/
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void
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ldap_back_dn_massage(
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struct ldapinfo *li,
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struct berval *dn,
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struct berval *res,
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int normalized,
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int tofrom
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)
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{
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int i, src, dst;
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assert( res );
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if ( dn == NULL ) {
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res->bv_val = NULL;
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res->bv_len = 0;
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return;
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}
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if ( li == NULL || li->suffix_massage == NULL ) {
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*res = *dn;
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return;
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}
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if ( tofrom ) {
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src = 0 + normalized;
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dst = 2 + normalized;
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} else {
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src = 2 + normalized;
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dst = 0 + normalized;
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}
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for ( i = 0;
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li->suffix_massage[i].bv_val != NULL;
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i += 4 ) {
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int aliasLength = li->suffix_massage[i+src].bv_len;
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int diff = dn->bv_len - aliasLength;
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if ( diff < 0 ) {
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/* alias is longer than dn */
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continue;
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} else if ( diff > 0 ) {
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if ( normalized && ( ! DN_SEPARATOR(dn->bv_val[diff-1]) ) ) {
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/* boundary is not at a DN separator */
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continue;
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}
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/* At a DN Separator */
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/* XXX or an escaped separator... oh well */
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}
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if ( !strcmp( li->suffix_massage[i+src].bv_val, &dn->bv_val[diff] ) ) {
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res->bv_len = diff + li->suffix_massage[i+dst].bv_len;
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res->bv_val = ch_malloc( res->bv_len + 1 );
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strncpy( res->bv_val, dn->bv_val, diff );
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strcpy( &res->bv_val[diff], li->suffix_massage[i+dst].bv_val );
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#ifdef NEW_LOGGING
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LDAP_LOG (( "suffixmassage", LDAP_LEVEL_ARGS,
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"ldap_back_dn_massage: converted \"%s\" to \"%s\"\n",
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dn->bv_val, res->bv_val ));
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#else
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Debug( LDAP_DEBUG_ARGS,
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"ldap_back_dn_massage:"
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" converted \"%s\" to \"%s\"\n",
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dn->bv_val, res->bv_val, 0 );
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#endif
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break;
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}
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}
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return;
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}
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#endif /* !ENABLE_REWRITE */
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