Adding upstream version 1:4.13+dfsg1.upstream/1%4.13+dfsg1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 269 insertions, 0 deletions

diff --git a/src/grpconv.c b/src/grpconv.c
new file mode 100644
index 0000000..57d8d58
--- /dev/null
+++ b/src/grpconv.c
@@ -0,0 +1,269 @@
+/*
+ * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
+ * SPDX-FileCopyrightText: 2002 - 2006, Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2011       , Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * grpconv - create or update /etc/gshadow with information from
+ * /etc/group.
+ *
+ */
+
+#include <config.h>
+#ident "$Id$"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <getopt.h>
+#include "nscd.h"
+#include "sssd.h"
+#include "prototypes.h"
+/*@-exitarg@*/
+#include "exitcodes.h"
+#ifdef SHADOWGRP
+#include "groupio.h"
+#include "sgroupio.h"
+#include "shadowlog.h"
+/*
+ * Global variables
+ */
+const char *Prog;
+
+static bool gr_locked  = false;
+static bool sgr_locked = false;
+
+/* local function prototypes */
+static void fail_exit (int status);
+static void usage (int status);
+static void process_flags (int argc, char **argv);
+
+static void fail_exit (int status)
+{
+	if (gr_locked) {
+		if (gr_unlock () == 0) {
+			fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, gr_dbname ());
+			SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ()));
+			/* continue */
+		}
+	}
+
+	if (sgr_locked) {
+		if (sgr_unlock () == 0) {
+			fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, sgr_dbname ());
+			SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ()));
+			/* continue */
+		}
+	}
+
+	exit (status);
+}
+
+static void usage (int status)
+{
+	FILE *usageout = (E_SUCCESS != status) ? stderr : stdout;
+	(void) fprintf (usageout,
+	                _("Usage: %s [options]\n"
+	                  "\n"
+	                  "Options:\n"),
+	                Prog);
+	(void) fputs (_("  -h, --help                    display this help message and exit\n"), usageout);
+	(void) fputs (_("  -R, --root CHROOT_DIR         directory to chroot into\n"), usageout);
+	(void) fputs ("\n", usageout);
+	exit (status);
+}
+
+/*
+ * process_flags - parse the command line options
+ *
+ *	It will not return if an error is encountered.
+ */
+static void process_flags (int argc, char **argv)
+{
+	/*
+	 * Parse the command line options.
+	 */
+	int c;
+	static struct option long_options[] = {
+		{"help", no_argument,       NULL, 'h'},
+		{"root", required_argument, NULL, 'R'},
+		{NULL, 0, NULL, '\0'}
+	};
+
+	while ((c = getopt_long (argc, argv, "hR:",
+	                         long_options, NULL)) != -1) {
+		switch (c) {
+		case 'h':
+			usage (E_SUCCESS);
+			/*@notreached@*/break;
+		case 'R': /* no-op, handled in process_root_flag () */
+			break;
+		default:
+			usage (E_USAGE);
+		}
+	}
+
+	if (optind != argc) {
+		usage (E_USAGE);
+	}
+}
+
+int main (int argc, char **argv)
+{
+	const struct group *gr;
+	struct group grent;
+	const struct sgrp *sg;
+	struct sgrp sgent;
+
+	Prog = Basename (argv[0]);
+	log_set_progname(Prog);
+	log_set_logfd(stderr);
+
+	(void) setlocale (LC_ALL, "");
+	(void) bindtextdomain (PACKAGE, LOCALEDIR);
+	(void) textdomain (PACKAGE);
+
+	process_root_flag ("-R", argc, argv);
+
+	OPENLOG ("grpconv");
+
+	process_flags (argc, argv);
+
+	if (gr_lock () == 0) {
+		fprintf (stderr,
+		         _("%s: cannot lock %s; try again later.\n"),
+		         Prog, gr_dbname ());
+		fail_exit (5);
+	}
+	gr_locked = true;
+	if (gr_open (O_CREAT | O_RDWR) == 0) {
+		fprintf (stderr, _("%s: cannot open %s\n"), Prog, gr_dbname ());
+		fail_exit (1);
+	}
+
+	if (sgr_lock () == 0) {
+		fprintf (stderr,
+		         _("%s: cannot lock %s; try again later.\n"),
+		         Prog, sgr_dbname ());
+		fail_exit (5);
+	}
+	sgr_locked = true;
+	if (sgr_open (O_CREAT | O_RDWR) == 0) {
+		fprintf (stderr, _("%s: cannot open %s\n"), Prog, sgr_dbname ());
+		fail_exit (1);
+	}
+
+	/*
+	 * Remove /etc/gshadow entries for groups not in /etc/group.
+	 */
+	(void) sgr_rewind ();
+	while ((sg = sgr_next ()) != NULL) {
+		if (gr_locate (sg->sg_name) != NULL) {
+			continue;
+		}
+
+		if (sgr_remove (sg->sg_name) == 0) {
+			/*
+			 * This shouldn't happen (the entry exists) but...
+			 */
+			fprintf (stderr,
+			         _("%s: cannot remove entry '%s' from %s\n"),
+			         Prog, sg->sg_name, sgr_dbname ());
+			fail_exit (3);
+		}
+		(void) sgr_rewind ();
+	}
+
+	/*
+	 * Update shadow group passwords if non-shadow password is not "x".
+	 * Add any missing shadow group entries.
+	 */
+	(void) gr_rewind ();
+	while ((gr = gr_next ()) != NULL) {
+		sg = sgr_locate (gr->gr_name);
+		if (NULL != sg) {
+			/* update existing shadow group entry */
+			sgent = *sg;
+			if (strcmp (gr->gr_passwd, SHADOW_PASSWD_STRING) != 0)
+				sgent.sg_passwd = gr->gr_passwd;
+		} else {
+			static char *empty = 0;
+
+			/* add new shadow group entry */
+			memset (&sgent, 0, sizeof sgent);
+			sgent.sg_name = gr->gr_name;
+			sgent.sg_passwd = gr->gr_passwd;
+			sgent.sg_adm = &empty;
+		}
+		/*
+		 * XXX - sg_mem is redundant, it is currently always a copy
+		 * of gr_mem. Very few programs actually use sg_mem, and all
+		 * of them are in the shadow suite. Maybe this field could
+		 * be used for something else? Any suggestions?
+		 */
+		sgent.sg_mem = gr->gr_mem;
+
+		if (sgr_update (&sgent) == 0) {
+			fprintf (stderr,
+			         _("%s: failed to prepare the new %s entry '%s'\n"),
+			         Prog, sgr_dbname (), sgent.sg_name);
+			fail_exit (3);
+		}
+		/* remove password from /etc/group */
+		grent = *gr;
+		grent.gr_passwd = SHADOW_PASSWD_STRING;	/* XXX warning: const */
+		if (gr_update (&grent) == 0) {
+			fprintf (stderr,
+			         _("%s: failed to prepare the new %s entry '%s'\n"),
+			         Prog, gr_dbname (), grent.gr_name);
+			fail_exit (3);
+		}
+	}
+
+	if (sgr_close () == 0) {
+		fprintf (stderr,
+		         _("%s: failure while writing changes to %s\n"),
+		         Prog, sgr_dbname ());
+		SYSLOG ((LOG_ERR, "failure while writing changes to %s", sgr_dbname ()));
+		fail_exit (3);
+	}
+	if (gr_close () == 0) {
+		fprintf (stderr,
+		         _("%s: failure while writing changes to %s\n"),
+		         Prog, gr_dbname ());
+		SYSLOG ((LOG_ERR, "failure while writing changes to %s", gr_dbname ()));
+		fail_exit (3);
+	}
+	if (sgr_unlock () == 0) {
+		fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, sgr_dbname ());
+		SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ()));
+		/* continue */
+	}
+	if (gr_unlock () == 0) {
+		fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, gr_dbname ());
+		SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ()));
+		/* continue */
+	}
+
+	nscd_flush_cache ("group");
+	sssd_flush_cache (SSSD_DB_GROUP);
+
+	return 0;
+}
+#else				/* !SHADOWGRP */
+int main (int unused(argc), char **argv)
+{
+	fprintf (stderr,
+		 "%s: not configured for shadow group support.\n", argv[0]);
+	exit (1);
+}
+#endif				/* !SHADOWGRP */
+