shadow/lib/encrypt.c
nekral-guest a326ffa435 * lib/exitcodes.h: Define E_SUCCESS as EXIT_SUCCESS. Added FIXMEs.
* libmisc/chowntty.c, libmisc/rlogin.c, libmisc/sub.c,
	src/newusers.c, libmisc/sulog.c, libmisc/system.c, src/logoutd.c,
	src/groups.c, src/id.c, lib/encrypt.c, libmisc/audit_help.c,
	libmisc/limits.c: Return EXIT_FAILURE instead of 1, and
	EXIT_SUCCESS instead of 0.
	* libmisc/audit_help.c: Replace an fprintf() by fputs().
	* libmisc/audit_help.c: Remove documentation of the audit_logger
	returned values. The function returns void.
	* libmisc/system.c: Only return status if waitpid succeeded.
	Return -1 otherwise.
2009-04-30 21:08:49 +00:00

97 lines
2.9 KiB
C

/*
* Copyright (c) 1990 - 1993, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2005 , Tomasz Kłoczko
* Copyright (c) 2007 - 2008, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#ident "$Id$"
#include <unistd.h>
#include <stdio.h>
#include "prototypes.h"
#include "defines.h"
char *pw_encrypt (const char *clear, const char *salt)
{
static char cipher[128];
char *cp;
cp = crypt (clear, salt);
if (!cp) {
/*
* Single Unix Spec: crypt() may return a null pointer,
* and set errno to indicate an error. The caller doesn't
* expect us to return NULL, so...
*/
perror ("crypt");
exit (EXIT_FAILURE);
}
/* The GNU crypt does not return NULL if the algorithm is not
* supported, and return a DES encrypted password. */
if ((NULL != salt) && (salt[0] == '$') && (strlen (cp) <= 13))
{
const char *method;
switch (salt[1])
{
case '1':
method = "MD5";
break;
case '5':
method = "SHA256";
break;
case '6':
method = "SHA512";
break;
default:
{
static char nummethod[4] = "$x$";
nummethod[1] = salt[1];
method = &nummethod[0];
}
}
fprintf (stderr,
_("crypt method not supported by libcrypt? (%s)\n"),
method);
exit (EXIT_FAILURE);
}
if (strlen (cp) != 13) {
return cp; /* nonstandard crypt() in libc, better bail out */
}
strcpy (cipher, cp);
return cipher;
}