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new file with functions for handling shadow passwords

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6709 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Assar Westerlund
1999-08-04 16:57:48 +00:00
parent c1d9354a25
commit b345587c61
1 changed files with 97 additions and 0 deletions
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appl/login/shadow.c Normal file
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/*
* Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Kungliga Tekniska
* H<>gskolan and its contributors.
*
* 4. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 "login_locl.h"
RCSID("$Id$");
#ifdef HAVE_SHADOW_H
#ifndef _PATH_CHPASS
#define _PATH_CHPASS "/usr/bin/passwd"
#endif
static int
change_passwd(struct passwd *who)
{
int status;
pid_t pid;
switch (pid = fork()) {
case -1:
printf("fork /bin/passwd");
exit(1);
case 0:
execlp(_PATH_CHPASS, "passwd", who->pw_name, (char *) 0);
exit(1);
default:
waitpid(pid, &status, 0);
return (status);
}
}
void
check_shadow(struct passwd *pw, struct spwd *sp)
{
long today;
today = time(0)/(24L * 60 * 60);
if (sp->sp_expire > 0) {
if (today >= sp->sp_expire) {
printf("Your account has expired.\n");
sleep(1);
exit(0);
} else if (sp->sp_expire - today < 14) {
printf("Your account will expire in %d days.\n",
(int)(sp->sp_expire - today));
}
}
if (sp->sp_max > 0) {
if (today >= (sp->sp_lstchg + sp->sp_max)) {
printf("Your password has expired. Choose a new one.\n");
change_passwd(pw);
} else if (sp->sp_warn > 0
&& (today > (sp->sp_lstchg + sp->sp_max - sp->sp_warn))) {
printf("Your password will expire in %d days.\n",
(int)(sp->sp_lstchg + sp->sp_max - today));
}
}
}
#endif /* HAVE_SHADOW_H */