Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

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

1 files changed, 262 insertions, 0 deletions

diff --git a/source3/utils/net_time.c b/source3/utils/net_time.c
new file mode 100644
index 0000000..f58d62b
--- /dev/null
+++ b/source3/utils/net_time.c
@@ -0,0 +1,262 @@
+/*
+   Samba Unix/Linux SMB client library
+   net time command
+   Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "includes.h"
+#include "utils/net.h"
+#include "libsmb/nmblib.h"
+#include "libsmb/namequery.h"
+#include "libsmb/libsmb.h"
+#include "../libcli/smb/smbXcli_base.h"
+
+/*
+  return the time on a server. This does not require any authentication
+*/
+static time_t cli_servertime(const char *host,
+			     const struct sockaddr_storage *dest_ss,
+			     int *zone)
+{
+	time_t ret = 0;
+	struct cli_state *cli = NULL;
+	NTSTATUS status;
+
+	status = cli_connect_nb(host, dest_ss, 0, 0x20, lp_netbios_name(),
+				SMB_SIGNING_DEFAULT, 0, &cli);
+	if (!NT_STATUS_IS_OK(status)) {
+		if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
+			fprintf(stderr, "Can't contact server %s. NetBIOS support disabled,"
+				" Error %s\n", host, nt_errstr(status));
+		} else {
+			fprintf(stderr, "Can't contact server %s. Error %s\n",
+				host, nt_errstr(status));
+		}
+		goto done;
+	}
+
+	status = smbXcli_negprot(cli->conn,
+				 cli->timeout,
+				 lp_client_min_protocol(),
+				 lp_client_max_protocol(),
+				 NULL,
+				 NULL,
+				 NULL);
+	if (!NT_STATUS_IS_OK(status)) {
+		fprintf(stderr, _("Protocol negotiation failed: %s\n"),
+			nt_errstr(status));
+		goto done;
+	}
+
+	ret = cli_state_server_time(cli);
+	if (zone) *zone = smb1cli_conn_server_time_zone(cli->conn);
+
+done:
+	if (cli) {
+		cli_shutdown(cli);
+	}
+	return ret;
+}
+
+/* find the servers time on the opt_host host */
+static time_t nettime(struct net_context *c, int *zone)
+{
+	return cli_servertime(c->opt_host,
+			      c->opt_have_ip? &c->opt_dest_ip : NULL, zone);
+}
+
+/* return a time as a string ready to be passed to /bin/date */
+static const char *systime(time_t t)
+{
+	struct tm *tm;
+
+	tm = localtime(&t);
+	if (!tm) {
+		return "unknown";
+	}
+
+	return talloc_asprintf(talloc_tos(), "%02d%02d%02d%02d%04d.%02d",
+			       tm->tm_mon+1, tm->tm_mday, tm->tm_hour,
+			       tm->tm_min, tm->tm_year + 1900, tm->tm_sec);
+}
+
+int net_time_usage(struct net_context *c, int argc, const char **argv)
+{
+	d_printf(_(
+"net time\n\tdisplays time on a server (-S server)\n\n"
+"net time system\n\tdisplays time on a server (-S server) in a format ready for /bin/date\n\n"
+"net time set\n\truns /bin/date with the time from the server (-S server)\n\n"
+"net time zone\n\tdisplays the timezone in hours from GMT on the remote server (-S server)\n\n"
+"\n"));
+	net_common_flags_usage(c, argc, argv);
+	return -1;
+}
+
+/* try to set the system clock */
+static int net_time_set(struct net_context *c, int argc, const char **argv)
+{
+	struct timeval tv;
+	int result;
+
+	if (c->display_usage || c->opt_host == NULL) {
+		d_printf(  "%s\n"
+			   "net time set\n"
+			   "    %s\n",
+			 _("Usage:"),
+			 _("Set local time to that of remote time "
+				"server (-S server) "));
+		return 0;
+	}
+
+	tv.tv_sec = nettime(c, NULL);
+	tv.tv_usec=0;
+
+	if (tv.tv_sec == 0) return -1;
+
+	result = settimeofday(&tv,NULL);
+
+	if (result)
+		d_fprintf(stderr, _("setting system clock failed.  Error was (%s)\n"),
+			strerror(errno));
+
+	return result;
+}
+
+/* display the time on a remote box in a format ready for /bin/date */
+static int net_time_system(struct net_context *c, int argc, const char **argv)
+{
+	time_t t;
+
+	if (c->display_usage || c->opt_host == NULL) {
+		d_printf(  "%s\n"
+			   "net time system\n"
+			   "    %s\n",
+			 _("Usage:"),
+			 _("Output remote time server (-S server) "
+				"time in a format ready for /bin/date"));
+		return 0;
+	}
+
+	t = nettime(c, NULL);
+	if (t == 0) return -1;
+
+	printf("%s\n", systime(t));
+
+	return 0;
+}
+
+/* display the remote time server's offset to UTC */
+static int net_time_zone(struct net_context *c, int argc, const char **argv)
+{
+	int zone = 0;
+	int hours, mins;
+	char zsign;
+	time_t t;
+
+	if (c->display_usage || c->opt_host == NULL) {
+		d_printf(  "%s\n"
+			   "net time zone\n"
+			   "   %s\n",
+			 _("Usage:"),
+			 _("Display the remote time server's (-S server) "
+				"offset to UTC"));
+		return 0;
+	}
+
+	t = nettime(c, &zone);
+
+	if (t == 0) return -1;
+
+	zsign = (zone > 0) ? '-' : '+';
+	if (zone < 0) zone = -zone;
+
+	zone /= 60;
+	hours = zone / 60;
+	mins = zone % 60;
+
+	printf("%c%02d%02d\n", zsign, hours, mins);
+
+	return 0;
+}
+
+/* display or set the time on a host */
+int net_time(struct net_context *c, int argc, const char **argv)
+{
+	time_t t;
+	struct functable func[] = {
+		{
+			"system",
+			net_time_system,
+			NET_TRANSPORT_LOCAL,
+			N_("Display time ready for /bin/date"),
+			N_("net time system\n"
+			   "    Display time ready for /bin/date")
+		},
+		{
+			"set",
+			net_time_set,
+			NET_TRANSPORT_LOCAL,
+			N_("Set the system time from time server"),
+			N_("net time set\n"
+			   "    Set the system time from time server")
+		},
+		{
+			"zone",
+			net_time_zone,
+			NET_TRANSPORT_LOCAL,
+			N_("Display timezone offset from UTC"),
+			N_("net time zone\n"
+			   "    Display timezone offset from UTC")
+		},
+		{NULL, NULL, 0, NULL, NULL}
+	};
+
+	if (argc != 0) {
+		return net_run_function(c, argc, argv, "net time", func);
+	}
+
+	if (c->display_usage) {
+		d_printf(  "%s\n"
+		           "net time\n"
+			   "    %s\n",
+			 _("Usage:"),
+			 _("Display the remote time server's time"));
+		net_display_usage_from_functable(func);
+		return 0;
+	}
+
+	if (c->opt_host == NULL && !c->opt_have_ip) {
+		bool ok;
+
+		ok = find_master_ip(c->opt_target_workgroup, &c->opt_dest_ip);
+		if (!ok) {
+			d_fprintf(stderr,
+				  _("Could not locate a time server.  "
+				    "Try specifying a target host.\n"));
+			net_time_usage(c, argc, argv);
+			return -1;
+		}
+		c->opt_have_ip = true;
+	}
+
+	/* default - print the time */
+	t = cli_servertime(c->opt_host,
+			   c->opt_have_ip? &c->opt_dest_ip : NULL,
+			   NULL);
+	if (t == 0) return -1;
+
+	d_printf("%s", ctime(&t));
+	return 0;
+}