2 Samba Unix/Linux SMB client library
4 Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "utils/net.h"
21 #include "libsmb/nmblib.h"
24 return the time on a server. This does not require any authentication
26 static time_t cli_servertime(const char *host, struct sockaddr_storage *pss, int *zone)
28 struct nmb_name calling, called;
30 struct cli_state *cli = NULL;
33 cli = cli_initialise();
38 status = cli_connect(cli, host, pss);
39 if (!NT_STATUS_IS_OK(status)) {
40 fprintf(stderr, _("Can't contact server %s. Error %s\n"),
41 host, nt_errstr(status));
45 make_nmb_name(&calling, global_myname(), 0x0);
47 make_nmb_name(&called, host, 0x20);
49 make_nmb_name(&called, "*SMBSERVER", 0x20);
52 if (!cli_session_request(cli, &calling, &called)) {
53 fprintf(stderr, _("Session request failed\n"));
56 status = cli_negprot(cli);
57 if (!NT_STATUS_IS_OK(status)) {
58 fprintf(stderr, _("Protocol negotiation failed: %s\n"),
63 ret = cli->servertime;
64 if (zone) *zone = cli->serverzone;
73 /* find the servers time on the opt_host host */
74 static time_t nettime(struct net_context *c, int *zone)
76 return cli_servertime(c->opt_host,
77 c->opt_have_ip? &c->opt_dest_ip : NULL, zone);
80 /* return a time as a string ready to be passed to /bin/date */
81 static const char *systime(time_t t)
90 return talloc_asprintf(talloc_tos(), "%02d%02d%02d%02d%04d.%02d",
91 tm->tm_mon+1, tm->tm_mday, tm->tm_hour,
92 tm->tm_min, tm->tm_year + 1900, tm->tm_sec);
95 int net_time_usage(struct net_context *c, int argc, const char **argv)
98 "net time\n\tdisplays time on a server\n\n"
99 "net time system\n\tdisplays time on a server in a format ready for /bin/date\n\n"
100 "net time set\n\truns /bin/date with the time from the server\n\n"
101 "net time zone\n\tdisplays the timezone in hours from GMT on the remote computer\n\n"
103 net_common_flags_usage(c, argc, argv);
107 /* try to set the system clock */
108 static int net_time_set(struct net_context *c, int argc, const char **argv)
113 tv.tv_sec = nettime(c, NULL);
116 if (tv.tv_sec == 0) return -1;
118 result = settimeofday(&tv,NULL);
121 d_fprintf(stderr, _("setting system clock failed. Error was (%s)\n"),
127 /* display the time on a remote box in a format ready for /bin/date */
128 static int net_time_system(struct net_context *c, int argc, const char **argv)
132 if (c->display_usage) {
137 _("Output remote time server time in a format "
138 "ready for /bin/date"));
142 t = nettime(c, NULL);
143 if (t == 0) return -1;
145 printf("%s\n", systime(t));
150 /* display the remote time server's offset to UTC */
151 static int net_time_zone(struct net_context *c, int argc, const char **argv)
158 if (c->display_usage) {
163 _("Display the remote time server's offset to "
168 t = nettime(c, &zone);
170 if (t == 0) return -1;
172 zsign = (zone > 0) ? '-' : '+';
173 if (zone < 0) zone = -zone;
179 printf("%c%02d%02d\n", zsign, hours, mins);
184 /* display or set the time on a host */
185 int net_time(struct net_context *c, int argc, const char **argv)
188 struct functable func[] = {
193 N_("Display time ready for /bin/date"),
194 N_("net time system\n"
195 " Display time ready for /bin/date")
201 N_("Set the system time from time server"),
203 " Set the system time from time server")
209 N_("Display timezone offset from UTC"),
211 " Display timezone offset from UTC")
213 {NULL, NULL, 0, NULL, NULL}
217 return net_run_function(c, argc, argv, "net time", func);
220 if (c->display_usage) {
225 _("Display the remote time server's time"));
226 net_display_usage_from_functable(func);
230 if (!c->opt_host && !c->opt_have_ip &&
231 !find_master_ip(c->opt_target_workgroup, &c->opt_dest_ip)) {
232 d_fprintf(stderr, _("Could not locate a time server. Try "
233 "specifying a target host.\n"));
234 net_time_usage(c, argc,argv);
238 /* default - print the time */
239 t = cli_servertime(c->opt_host, c->opt_have_ip? &c->opt_dest_ip : NULL,
241 if (t == 0) return -1;
243 d_printf("%s", ctime(&t));