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"
22 #include "libsmb/libsmb.h"
23 #include "../libcli/smb/smbXcli_base.h"
26 return the time on a server. This does not require any authentication
28 static time_t cli_servertime(const char *host,
29 const struct sockaddr_storage *dest_ss,
33 struct cli_state *cli = NULL;
36 status = cli_connect_nb(host, dest_ss, 0, 0x20, lp_netbios_name(),
37 SMB_SIGNING_DEFAULT, 0, &cli);
38 if (!NT_STATUS_IS_OK(status)) {
39 fprintf(stderr, _("Can't contact server %s. Error %s\n"),
40 host, nt_errstr(status));
44 status = smbXcli_negprot(cli->conn, cli->timeout, PROTOCOL_CORE,
46 if (!NT_STATUS_IS_OK(status)) {
47 fprintf(stderr, _("Protocol negotiation failed: %s\n"),
52 ret = cli_state_server_time(cli);
53 if (zone) *zone = smb1cli_conn_server_time_zone(cli->conn);
62 /* find the servers time on the opt_host host */
63 static time_t nettime(struct net_context *c, int *zone)
65 return cli_servertime(c->opt_host,
66 c->opt_have_ip? &c->opt_dest_ip : NULL, zone);
69 /* return a time as a string ready to be passed to /bin/date */
70 static const char *systime(time_t t)
79 return talloc_asprintf(talloc_tos(), "%02d%02d%02d%02d%04d.%02d",
80 tm->tm_mon+1, tm->tm_mday, tm->tm_hour,
81 tm->tm_min, tm->tm_year + 1900, tm->tm_sec);
84 int net_time_usage(struct net_context *c, int argc, const char **argv)
87 "net time\n\tdisplays time on a server\n\n"
88 "net time system\n\tdisplays time on a server in a format ready for /bin/date\n\n"
89 "net time set\n\truns /bin/date with the time from the server\n\n"
90 "net time zone\n\tdisplays the timezone in hours from GMT on the remote computer\n\n"
92 net_common_flags_usage(c, argc, argv);
96 /* try to set the system clock */
97 static int net_time_set(struct net_context *c, int argc, const char **argv)
102 tv.tv_sec = nettime(c, NULL);
105 if (tv.tv_sec == 0) return -1;
107 result = settimeofday(&tv,NULL);
110 d_fprintf(stderr, _("setting system clock failed. Error was (%s)\n"),
116 /* display the time on a remote box in a format ready for /bin/date */
117 static int net_time_system(struct net_context *c, int argc, const char **argv)
121 if (c->display_usage) {
126 _("Output remote time server time in a format "
127 "ready for /bin/date"));
131 t = nettime(c, NULL);
132 if (t == 0) return -1;
134 printf("%s\n", systime(t));
139 /* display the remote time server's offset to UTC */
140 static int net_time_zone(struct net_context *c, int argc, const char **argv)
147 if (c->display_usage) {
152 _("Display the remote time server's offset to "
157 t = nettime(c, &zone);
159 if (t == 0) return -1;
161 zsign = (zone > 0) ? '-' : '+';
162 if (zone < 0) zone = -zone;
168 printf("%c%02d%02d\n", zsign, hours, mins);
173 /* display or set the time on a host */
174 int net_time(struct net_context *c, int argc, const char **argv)
177 struct functable func[] = {
182 N_("Display time ready for /bin/date"),
183 N_("net time system\n"
184 " Display time ready for /bin/date")
190 N_("Set the system time from time server"),
192 " Set the system time from time server")
198 N_("Display timezone offset from UTC"),
200 " Display timezone offset from UTC")
202 {NULL, NULL, 0, NULL, NULL}
206 return net_run_function(c, argc, argv, "net time", func);
209 if (c->display_usage) {
214 _("Display the remote time server's time"));
215 net_display_usage_from_functable(func);
219 if (!c->opt_host && !c->opt_have_ip &&
220 !find_master_ip(c->opt_target_workgroup, &c->opt_dest_ip)) {
221 d_fprintf(stderr, _("Could not locate a time server. Try "
222 "specifying a target host.\n"));
223 net_time_usage(c, argc,argv);
227 /* default - print the time */
228 t = cli_servertime(c->opt_host, c->opt_have_ip? &c->opt_dest_ip : NULL,
230 if (t == 0) return -1;
232 d_printf("%s", ctime(&t));