2007-10-07 11:44:02 +00:00
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/*
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* grpunconv - update /etc/group with information from /etc/gshadow.
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*
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* Copyright (C) 1996, Michael Meskes <meskes@debian.org>
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* using sources from Marek Michalkiewicz
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* <marekm@i17linuxb.ists.pwr.wroc.pl>
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* This program may be freely used and distributed. If you improve
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* it, please send me your changes. Thanks!
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*/
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#include <config.h>
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#include "rcsid.h"
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2007-10-07 11:44:14 +00:00
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RCSID(PKG_VER "$Id: grpunconv.c,v 1.10 2000/08/26 18:27:18 marekm Exp $")
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2007-10-07 11:44:02 +00:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <time.h>
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#include <unistd.h>
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#include <grp.h>
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#include "prototypes.h"
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#ifdef SHADOWGRP
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#include "groupio.h"
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#include "sgroupio.h"
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static int group_locked = 0;
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static int gshadow_locked = 0;
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/* local function prototypes */
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2007-10-07 11:44:14 +00:00
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static void fail_exit(int);
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2007-10-07 11:44:02 +00:00
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static void
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fail_exit(int status)
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{
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if (group_locked)
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gr_unlock();
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if (gshadow_locked)
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sgr_unlock();
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exit(status);
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}
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int
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main(int argc, char **argv)
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{
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const struct group *gr;
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struct group grent;
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const struct sgrp *sg;
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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 (!sgr_file_present())
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exit(0); /* no /etc/gshadow, nothing to do */
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if (!gr_lock()) {
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fprintf(stderr, _("%s: can't lock group file\n"), Prog);
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fail_exit(5);
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}
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group_locked++;
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if (!gr_open(O_RDWR)) {
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fprintf(stderr, _("%s: can't open group file\n"), Prog);
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fail_exit(1);
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}
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if (!sgr_lock()) {
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fprintf(stderr, _("%s: can't lock shadow group file\n"), Prog);
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fail_exit(5);
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}
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gshadow_locked++;
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if (!sgr_open(O_RDWR)) {
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fprintf(stderr, _("%s: can't open shadow group file\n"), Prog);
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fail_exit(1);
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}
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/*
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* Update group passwords if non-shadow password is "x".
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*/
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gr_rewind();
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while ((gr = gr_next())) {
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sg = sgr_locate(gr->gr_name);
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if (sg && strcmp(gr->gr_passwd, SHADOW_PASSWD_STRING) == 0) {
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/* add password to /etc/group */
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grent = *gr;
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grent.gr_passwd = sg->sg_passwd;
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if (!gr_update(&grent)) {
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fprintf(stderr,
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_("%s: can't update entry for group %s\n"),
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Prog, grent.gr_name);
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fail_exit(3);
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}
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}
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}
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if (!sgr_close()) {
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fprintf(stderr, _("%s: can't update shadow group file\n"), Prog);
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fail_exit(3);
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}
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if (!gr_close()) {
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fprintf(stderr, _("%s: can't update group file\n"), Prog);
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fail_exit(3);
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}
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if (unlink(SGROUP_FILE) != 0) {
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fprintf(stderr, _("%s: can't delete shadow group file\n"), Prog);
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fail_exit(3);
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}
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sgr_unlock();
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gr_unlock();
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return 0;
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}
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#else /* !SHADOWGRP */
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int
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main(int argc, char **argv)
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{
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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fprintf(stderr, _("%s: not configured for shadow group support.\n"), argv[0]);
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exit(1);
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}
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#endif /* !SHADOWGRP */
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