shadow/src/pwunconv.c
nekral-guest d7b55ce2bb * src/groupmems.c: Check the return value of gr_update().
* src/chage.c, src/chfn.c, src/chgpasswd.c, src/chpasswd.c,
	src/chsh.c, src/gpasswd.c, src/groupadd.c, src/groupmems.c,
	src/groupmod.c, src/grpck.c, src/grpconv.c, src/grpunconv.c,
	src/passwd.c, src/pwck.c, src/pwconv.c, src/pwunconv.c,
	src/useradd.c, src/userdel.c, src/usermod.c: Harmonize the error
	message sent to stderr in case of *_update () failure.
	* src/chage.c, src/chsh.c, src/groupadd.c, src/passwd.c: Do not
	log to syslog when pw_update() or spw_update() fail.
	* src/newusers.c: Do not log specific error message to stderr when
	sgr_update() fails.
	* src/pwconv.c: Remove duplicated definition of Prog.
2008-08-30 18:27:34 +00:00

197 lines
5.4 KiB
C

/*
* Copyright (c) 1989 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2001 - 2005, Tomasz Kłoczko
* Copyright (c) 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 <fcntl.h>
#include <pwd.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include "defines.h"
#include "nscd.h"
#include "prototypes.h"
#include "pwio.h"
#include "shadowio.h"
/*
* Global variables
*/
static char *Prog;
static bool spw_locked = false;
static bool pw_locked = false;
/* local function prototypes */
static void fail_exit (int status);
static void fail_exit (int status)
{
if (spw_locked) {
if (spw_unlock () == 0) {
fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, spw_dbname ());
SYSLOG ((LOG_ERR, "failed to unlock %s", spw_dbname ()));
/* continue */
}
}
if (pw_locked) {
if (pw_unlock () == 0) {
fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, pw_dbname ());
SYSLOG ((LOG_ERR, "failed to unlock %s", pw_dbname ()));
/* continue */
}
}
exit (status);
}
int main (int argc, char **argv)
{
const struct passwd *pw;
struct passwd pwent;
const struct spwd *spwd;
Prog = Basename (argv[0]);
(void) setlocale (LC_ALL, "");
(void) bindtextdomain (PACKAGE, LOCALEDIR);
(void) textdomain (PACKAGE);
OPENLOG ("pwunconv");
if (!spw_file_present ()) {
/* shadow not installed, do nothing */
exit (0);
}
if (pw_lock () == 0) {
fprintf (stderr,
_("%s: cannot lock %s; try again later.\n"),
Prog, pw_dbname ());
fail_exit (5);
}
pw_locked = true;
if (pw_open (O_RDWR) == 0) {
fprintf (stderr,
_("%s: cannot open %s\n"),
Prog, pw_dbname ());
fail_exit (1);
}
if (spw_lock () == 0) {
fprintf (stderr,
_("%s: cannot lock %s; try again later.\n"),
Prog, spw_dbname ());
fail_exit (5);
}
spw_locked = true;
if (spw_open (O_RDWR) == 0) {
fprintf (stderr,
_("%s: cannot open %s\n"),
Prog, spw_dbname ());
fail_exit (1);
}
pw_rewind ();
while ((pw = pw_next ()) != NULL) {
spwd = spw_locate (pw->pw_name);
if (NULL == spwd) {
continue;
}
pwent = *pw;
/*
* Update password if non-shadow is "x".
*/
if (strcmp (pw->pw_passwd, SHADOW_PASSWD_STRING) == 0) {
pwent.pw_passwd = spwd->sp_pwdp;
}
/*
* Password aging works differently in the two different
* systems. With shadow password files you apparently must
* have some aging information. The maxweeks or minweeks
* may not map exactly. In pwconv we set max == 10000,
* which is about 30 years. Here we have to undo that
* kludge. So, if maxdays == 10000, no aging information is
* put into the new file. Otherwise, the days are converted
* to weeks and so on.
*/
if (pw_update (&pwent) == 0) {
fprintf (stderr,
_("%s: failed to prepare the new %s entry '%s'\n"),
Prog, pw_dbname (), pwent.pw_name);
fail_exit (3);
}
}
if (spw_close () == 0) {
fprintf (stderr,
_("%s: failure while writing changes to %s\n"),
Prog, spw_dbname ());
SYSLOG ((LOG_ERR, "failure while writing changes to %s", spw_dbname ()));
fail_exit (3);
}
if (pw_close () == 0) {
fprintf (stderr,
_("%s: failure while writing changes to %s\n"),
Prog, pw_dbname ());
SYSLOG ((LOG_ERR, "failure while writing changes to %s", pw_dbname ()));
fail_exit (3);
}
if (unlink (SHADOW) != 0) {
fprintf (stderr,
_("%s: cannot delete %s\n"), Prog, SHADOW);
SYSLOG ((LOG_ERR, "cannot delete %s", SHADOW));
fail_exit (3);
}
if (spw_unlock () == 0) {
fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, spw_dbname ());
SYSLOG ((LOG_ERR, "failed to unlock %s", spw_dbname ()));
/* continue */
}
if (pw_unlock () == 0) {
fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, pw_dbname ());
SYSLOG ((LOG_ERR, "failed to unlock %s", pw_dbname ()));
/* continue */
}
nscd_flush_cache ("passwd");
return 0;
}