153 lines
4.1 KiB
C
153 lines
4.1 KiB
C
/*
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* Copyright 1989 - 1994, Julianne Frances Haugh
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <config.h>
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#include "rcsid.h"
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RCSID (PKG_VER "$Id: pwunconv.c,v 1.18 2005/08/03 16:00:46 kloczek Exp $")
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#include "defines.h"
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#include <sys/types.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <pwd.h>
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#include <unistd.h>
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#include "prototypes.h"
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#include "pwio.h"
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#include "shadowio.h"
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#include "nscd.h"
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char *l64a ();
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static int shadow_locked = 0, passwd_locked = 0;
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/* local function prototypes */
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static void fail_exit (int);
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static void fail_exit (int status)
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{
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if (shadow_locked)
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spw_unlock ();
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if (passwd_locked)
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pw_unlock ();
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exit (status);
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}
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int main (int argc, char **argv)
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{
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const struct passwd *pw;
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struct passwd pwent;
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const struct spwd *spwd;
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char *Prog = argv[0];
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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if (!spw_file_present ())
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/* shadow not installed, do nothing */
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exit (0);
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if (!pw_lock ()) {
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fprintf (stderr, _("%s: can't lock passwd file\n"), Prog);
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fail_exit (5);
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}
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passwd_locked++;
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if (!pw_open (O_RDWR)) {
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fprintf (stderr, _("%s: can't open passwd file\n"), Prog);
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fail_exit (1);
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}
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if (!spw_lock ()) {
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fprintf (stderr, _("%s: can't open shadow file\n"), Prog);
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fail_exit (5);
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}
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shadow_locked++;
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if (!spw_open (O_RDWR)) {
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fprintf (stderr, _("%s: can't open shadow file\n"), Prog);
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fail_exit (1);
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}
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pw_rewind ();
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while ((pw = pw_next ())) {
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if (!(spwd = spw_locate (pw->pw_name)))
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continue;
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pwent = *pw;
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/*
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* Update password if non-shadow is "x".
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*/
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if (strcmp (pw->pw_passwd, SHADOW_PASSWD_STRING) == 0)
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pwent.pw_passwd = spwd->sp_pwdp;
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/*
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* Password aging works differently in the two different
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* systems. With shadow password files you apparently must
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* have some aging information. The maxweeks or minweeks
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* may not map exactly. In pwconv we set max == 10000,
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* which is about 30 years. Here we have to undo that
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* kludge. So, if maxdays == 10000, no aging information is
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* put into the new file. Otherwise, the days are converted
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* to weeks and so on.
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*/
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if (!pw_update (&pwent)) {
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fprintf (stderr,
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_("%s: can't update entry for user %s\n"),
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Prog, pwent.pw_name);
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fail_exit (3);
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}
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}
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if (!spw_close ()) {
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fprintf (stderr,
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_("%s: can't update shadow password file\n"), Prog);
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fail_exit (3);
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}
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if (!pw_close ()) {
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fprintf (stderr, _("%s: can't update password file\n"), Prog);
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fail_exit (3);
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}
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if (unlink (SHADOW) != 0) {
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fprintf (stderr,
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_("%s: can't delete shadow password file\n"), Prog);
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fail_exit (3);
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}
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spw_unlock ();
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pw_unlock ();
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nscd_flush_cache ("passwd");
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return 0;
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}
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