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/namequery.h"
23 #include "libsmb/libsmb.h"
24 #include "../libcli/smb/smbXcli_base.h"
27 return the time on a server. This does not require any authentication
29 static time_t cli_servertime(const char *host,
30 const struct sockaddr_storage *dest_ss,
34 struct cli_state *cli = NULL;
37 status = cli_connect_nb(host, dest_ss, 0, 0x20, lp_netbios_name(),
38 SMB_SIGNING_DEFAULT, 0, &cli);
39 if (!NT_STATUS_IS_OK(status)) {
40 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
41 fprintf(stderr, "Can't contact server %s. NetBIOS support disabled,"
42 " Error %s\n", host, nt_errstr(status));
44 fprintf(stderr, "Can't contact server %s. Error %s\n",
45 host, nt_errstr(status));
50 status = smbXcli_negprot(cli->conn, cli->timeout,
51 lp_client_min_protocol(),
52 lp_client_max_protocol());
53 if (!NT_STATUS_IS_OK(status)) {
54 fprintf(stderr, _("Protocol negotiation failed: %s\n"),
59 ret = cli_state_server_time(cli);
60 if (zone) *zone = smb1cli_conn_server_time_zone(cli->conn);
69 /* find the servers time on the opt_host host */
70 static time_t nettime(struct net_context *c, int *zone)
72 return cli_servertime(c->opt_host,
73 c->opt_have_ip? &c->opt_dest_ip : NULL, zone);
76 /* return a time as a string ready to be passed to /bin/date */
77 static const char *systime(time_t t)
86 return talloc_asprintf(talloc_tos(), "%02d%02d%02d%02d%04d.%02d",
87 tm->tm_mon+1, tm->tm_mday, tm->tm_hour,
88 tm->tm_min, tm->tm_year + 1900, tm->tm_sec);
91 int net_time_usage(struct net_context *c, int argc, const char **argv)
94 "net time\n\tdisplays time on a server (-S server)\n\n"
95 "net time system\n\tdisplays time on a server (-S server) in a format ready for /bin/date\n\n"
96 "net time set\n\truns /bin/date with the time from the server (-S server)\n\n"
97 "net time zone\n\tdisplays the timezone in hours from GMT on the remote server (-S server)\n\n"
99 net_common_flags_usage(c, argc, argv);
103 /* try to set the system clock */
104 static int net_time_set(struct net_context *c, int argc, const char **argv)
109 if (c->display_usage || c->opt_host == NULL) {
114 _("Set local time to that of remote time "
115 "server (-S server) "));
119 tv.tv_sec = nettime(c, NULL);
122 if (tv.tv_sec == 0) return -1;
124 result = settimeofday(&tv,NULL);
127 d_fprintf(stderr, _("setting system clock failed. Error was (%s)\n"),
133 /* display the time on a remote box in a format ready for /bin/date */
134 static int net_time_system(struct net_context *c, int argc, const char **argv)
138 if (c->display_usage || c->opt_host == NULL) {
143 _("Output remote time server (-S server) "
144 "time in a format ready for /bin/date"));
148 t = nettime(c, NULL);
149 if (t == 0) return -1;
151 printf("%s\n", systime(t));
156 /* display the remote time server's offset to UTC */
157 static int net_time_zone(struct net_context *c, int argc, const char **argv)
164 if (c->display_usage || c->opt_host == NULL) {
169 _("Display the remote time server's (-S server) "
174 t = nettime(c, &zone);
176 if (t == 0) return -1;
178 zsign = (zone > 0) ? '-' : '+';
179 if (zone < 0) zone = -zone;
185 printf("%c%02d%02d\n", zsign, hours, mins);
190 /* display or set the time on a host */
191 int net_time(struct net_context *c, int argc, const char **argv)
194 struct functable func[] = {
199 N_("Display time ready for /bin/date"),
200 N_("net time system\n"
201 " Display time ready for /bin/date")
207 N_("Set the system time from time server"),
209 " Set the system time from time server")
215 N_("Display timezone offset from UTC"),
217 " Display timezone offset from UTC")
219 {NULL, NULL, 0, NULL, NULL}
223 return net_run_function(c, argc, argv, "net time", func);
226 if (c->display_usage) {
231 _("Display the remote time server's time"));
232 net_display_usage_from_functable(func);
236 if (c->opt_host == NULL && !c->opt_have_ip) {
239 ok = find_master_ip(c->opt_target_workgroup, &c->opt_dest_ip);
242 _("Could not locate a time server. "
243 "Try specifying a target host.\n"));
244 net_time_usage(c, argc, argv);
247 c->opt_have_ip = true;
250 /* default - print the time */
251 t = cli_servertime(c->opt_host,
252 c->opt_have_ip? &c->opt_dest_ip : NULL,
254 if (t == 0) return -1;
256 d_printf("%s", ctime(&t));