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/*
* Copyright Elliot Lee, 1996. 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, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 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 author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* ALTERNATIVELY, this product may be distributed under the terms of
* the GNU Public License, in which case the provisions of the GPL are
* required INSTEAD OF the above restrictions. (This clause is
* necessary due to a potential bad interaction between the GPL and
* the restrictions contained in a BSD-style copyright.)
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
*/
/* pam_unix_acct.c module, different track */
#ifdef linux
# define _GNU_SOURCE
# include <features.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define __USE_MISC
#include <pwd.h>
#include <sys/types.h>
#include <syslog.h>
#include <unistd.h>
#ifdef HAVE_SHADOW_H
#include <shadow.h>
#endif
#include <time.h>
#define PAM_SM_ACCOUNT
#ifndef LINUX
# include <security/pam_appl.h>
#endif
#define _PAM_EXTERN_FUNCTIONS
#include <security/pam_modules.h>
PAM_EXTERN
int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags,
int argc, const char **argv)
{
#ifdef HAVE_SHADOW_H
const char *uname;
int retval;
time_t curdays;
struct spwd *spent;
struct passwd *pwent;
setpwent();
setspent();
retval = pam_get_item(pamh,PAM_USER,(const void **)&uname);
if(retval != PAM_SUCCESS || uname == NULL) {
return PAM_SUCCESS; /* Couldn't get username, just ignore this
(i.e. they don't have any expiry info available */
}
pwent = getpwnam(uname);
if(!pwent)
return PAM_USER_UNKNOWN;
if(strcmp(pwent->pw_passwd,"x"))
return PAM_SUCCESS; /* They aren't using shadow passwords & expiry
info */
spent = getspnam(uname);
if(!spent)
return PAM_SUCCESS; /* Couldn't get username from shadow, just ignore this
(i.e. they don't have any expiry info available */
curdays = time(NULL)/(60*60*24);
if((curdays > (spent->sp_lstchg + spent->sp_max + spent->sp_inact))
&& (spent->sp_max != -1) && (spent->sp_inact != -1))
return PAM_ACCT_EXPIRED;
if((curdays > spent->sp_expire) && (spent->sp_expire != -1))
return PAM_ACCT_EXPIRED;
endspent();
endpwent();
#endif
return PAM_SUCCESS;
}
/* static module data */
#ifdef PAM_STATIC
struct pam_module _pam_unix_acct_modstruct = {
"pam_unix_acct",
NULL,
NULL,
pam_sm_acct_mgmt,
NULL,
NULL,
NULL,
};
#endif
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