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

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

1 files changed, 238 insertions, 0 deletions

diff --git a/src/pwunconv.c b/src/pwunconv.c
new file mode 100644
index 0000000..b862435
--- /dev/null
+++ b/src/pwunconv.c
@@ -0,0 +1,238 @@
+/*
+ * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh
+ * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
+ * SPDX-FileCopyrightText: 2001 - 2005, Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2008 - 2012, Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <config.h>
+
+#ident "$Id$"
+
+#include <fcntl.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <getopt.h>
+#include "defines.h"
+#include "nscd.h"
+#include "sssd.h"
+#include "prototypes.h"
+#include "pwio.h"
+#include "shadowio.h"
+/*@-exitarg@*/
+#include "exitcodes.h"
+#include "shadowlog.h"
+
+/*
+ * Global variables
+ */
+const char *Prog;
+
+static bool spw_locked = false;
+static bool pw_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 (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);
+}
+
+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 passwd *pw;
+	struct passwd pwent;
+	const struct spwd *spwd;
+
+	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 ("pwunconv");
+
+	process_flags (argc, argv);
+
+#ifdef WITH_TCB
+	if (getdef_bool("USE_TCB")) {
+		fprintf (stderr, _("%s: can't work with tcb enabled\n"), Prog);
+		exit (1);
+	}
+#endif				/* WITH_TCB */
+
+	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_CREAT | 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_RDONLY) == 0) {
+		fprintf (stderr,
+		         _("%s: cannot open %s\n"),
+		         Prog, spw_dbname ());
+		fail_exit (1);
+	}
+
+	(void) 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);
+		}
+	}
+
+	(void) spw_close (); /* was only open O_RDONLY */
+
+	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");
+	sssd_flush_cache (SSSD_DB_PASSWD);
+
+	return 0;
+}
+