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/*
* Copyright (c) 2000-2002
* Chris Adams <cmadams@iruntheinter.net>
* written for HiWAAY Internet Services
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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
*/
/*
* Adapted for Exim by Tamas TEVESZ <ice@extreme.hu>
* Further adapted by Philip Hazel to cut out this function for operating
* systems that have a built-in version.
*/
/* The OS has a built-in crypt16(). Some compilers don't like compiling empty
modules, so keep them happy with a dummy when skipping the rest. */
#include "config.h"
#ifdef HAVE_CRYPT16
static void dummy(int x) { dummy(x-1); }
#else
/* The OS doesn't have a built-in crypt16(). Compile this one. */
#include <unistd.h>
#include <string.h>
#include "os.h"
#ifdef CRYPT_H
#include <crypt.h>
#endif
char *
crypt16(char *key, char *salt)
{
static char res[25]; /* Not threadsafe; like crypt() */
static char s2[3];
char *p;
/* Clear the string of any previous data */
memset (res, 0, sizeof (res));
/* crypt the first part */
if (!(p = crypt (key, salt))) return NULL;
strncpy (res, p, 13);
if (strlen (key) > 8)
{
/* crypt the rest
* the first two characters of the first block (not counting
* the salt) make up the new salt */
strncpy (s2, res+2, 2);
p = crypt (key+8, s2);
strncpy (res+13, p+2, 11);
memset (s2, 0, sizeof(s2));
}
return (res);
}
#endif
/* End of crypt16.c */
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