shadow/libmisc/pwdcheck.c
nekral-guest c7302b61ef Make sure every source files are distributed with a copyright and license.
Files with no license use the default 3-clauses BSD license. The copyright
were mostly not recorded; they were updated according to the Changelog.
"Julianne Frances Haugh and contributors" changed to "copyright holders
and contributors".
2008-04-27 00:40:09 +00:00

87 lines
2.8 KiB
C

/*
* Copyright (c) 2000 - 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 <stdio.h>
#include "prototypes.h"
#include "defines.h"
#ifdef USE_PAM
#include "pam_defs.h"
#else
#include <shadow.h>
#include "pwauth.h"
#endif
#define WRONGPWD2 "incorrect password for `%s'"
void passwd_check (const char *user, const char *passwd, const char *progname)
{
#ifdef USE_PAM
pam_handle_t *pamh = NULL;
int retcode;
if (pam_start (progname, user, &conv, &pamh)) {
bailout:
SYSLOG ((LOG_WARN, WRONGPWD2, user));
sleep (1);
fprintf (stderr, _("Incorrect password for %s.\n"), user);
exit (1);
}
if (pam_authenticate (pamh, 0))
goto bailout;
retcode = pam_acct_mgmt (pamh, 0);
if (retcode == PAM_NEW_AUTHTOK_REQD)
retcode = pam_chauthtok (pamh, PAM_CHANGE_EXPIRED_AUTHTOK);
if (retcode)
goto bailout;
if (pam_setcred (pamh, 0))
goto bailout;
/* no need to establish a session; this isn't a session-oriented
* activity... */
#else /* !USE_PAM */
struct spwd *sp;
if ((sp = getspnam (user))) /* !USE_PAM, no need for xgetspnam */
passwd = sp->sp_pwdp;
if (pw_auth (passwd, user, PW_LOGIN, (char *) 0) != 0) {
SYSLOG ((LOG_WARN, WRONGPWD2, user));
sleep (1);
fprintf (stderr, _("Incorrect password for %s.\n"), user);
exit (1);
}
#endif /* !USE_PAM */
}