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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/*
* slapd hashed password routines
*
*/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "pwdstorage.h"
#include "md5.h" /* JCM - This is a core server header... These functions could be made part of the slapi API. */
/*
* Netscape Mail Server MD5 support (compare-only; no support for encoding)
*/
static char * ns_mta_hextab = "0123456789abcdef";
static void
ns_mta_hexify(char *buffer, char *str, int len)
{
char *pch = str;
char ch;
int i;
for(i = 0;i < len; i ++) {
ch = pch[i];
buffer[2*i] = ns_mta_hextab[(ch>>4)&15];
buffer[2*i+1] = ns_mta_hextab[ch&15];
}
return;
}
static char *
ns_mta_hash_alg(char *buffer, char *salt, char *passwd)
{
mta_MD5_CTX context;
char *saltstr;
unsigned char digest[16];
if ( (saltstr = slapi_ch_malloc(strlen(salt)*2 + strlen(passwd) + 3))
== NULL ) {
return( NULL );
}
sprintf(saltstr,"%s%c%s%c%s",salt,89,passwd,247,salt);
mta_MD5Init(&context);
mta_MD5Update(&context,(unsigned char *)saltstr,strlen(saltstr));
mta_MD5Final(digest,&context);
ns_mta_hexify(buffer,(char*)digest,16);
buffer[32] = '\0';
slapi_ch_free((void**)&saltstr);
return(buffer);
}
int
ns_mta_md5_pw_cmp(char * clear, char *mangled)
{
char mta_hash[33];
char mta_salt[33];
char buffer[65];
strncpy(mta_hash,mangled,32);
strncpy(mta_salt,&mangled[32],32);
mta_hash[32] = mta_salt[32] = 0;
return( strcmp(mta_hash,ns_mta_hash_alg(buffer,mta_salt,clear)));
}
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