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/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/*
* 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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