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"
23 return the time on a server. This does not require any authentication
25 static time_t cli_servertime(const char *host
, struct sockaddr_storage
*pss
, int *zone
)
27 struct nmb_name calling
, called
;
29 struct cli_state
*cli
= NULL
;
32 cli
= cli_initialise();
37 status
= cli_connect(cli
, host
, pss
);
38 if (!NT_STATUS_IS_OK(status
)) {
39 fprintf(stderr
, _("Can't contact server %s. Error %s\n"),
40 host
, nt_errstr(status
));
44 make_nmb_name(&calling
, global_myname(), 0x0);
46 make_nmb_name(&called
, host
, 0x20);
48 make_nmb_name(&called
, "*SMBSERVER", 0x20);
51 if (!cli_session_request(cli
, &calling
, &called
)) {
52 fprintf(stderr
, _("Session request failed\n"));
55 status
= cli_negprot(cli
);
56 if (!NT_STATUS_IS_OK(status
)) {
57 fprintf(stderr
, _("Protocol negotiation failed: %s\n"),
62 ret
= cli
->servertime
;
63 if (zone
) *zone
= cli
->serverzone
;
72 /* find the servers time on the opt_host host */
73 static time_t nettime(struct net_context
*c
, int *zone
)
75 return cli_servertime(c
->opt_host
,
76 c
->opt_have_ip
? &c
->opt_dest_ip
: NULL
, zone
);
79 /* return a time as a string ready to be passed to /bin/date */
80 static const char *systime(time_t t
)
89 return talloc_asprintf(talloc_tos(), "%02d%02d%02d%02d%04d.%02d",
90 tm
->tm_mon
+1, tm
->tm_mday
, tm
->tm_hour
,
91 tm
->tm_min
, tm
->tm_year
+ 1900, tm
->tm_sec
);
94 int net_time_usage(struct net_context
*c
, int argc
, const char **argv
)
97 "net time\n\tdisplays time on a server\n\n"
98 "net time system\n\tdisplays time on a server in a format ready for /bin/date\n\n"
99 "net time set\n\truns /bin/date with the time from the server\n\n"
100 "net time zone\n\tdisplays the timezone in hours from GMT on the remote computer\n\n"
102 net_common_flags_usage(c
, argc
, argv
);
106 /* try to set the system clock */
107 static int net_time_set(struct net_context
*c
, int argc
, const char **argv
)
112 tv
.tv_sec
= nettime(c
, NULL
);
115 if (tv
.tv_sec
== 0) return -1;
117 result
= settimeofday(&tv
,NULL
);
120 d_fprintf(stderr
, _("setting system clock failed. Error was (%s)\n"),
126 /* display the time on a remote box in a format ready for /bin/date */
127 static int net_time_system(struct net_context
*c
, int argc
, const char **argv
)
131 if (c
->display_usage
) {
136 _("Output remote time server time in a format "
137 "ready for /bin/date"));
141 t
= nettime(c
, NULL
);
142 if (t
== 0) return -1;
144 printf("%s\n", systime(t
));
149 /* display the remote time server's offset to UTC */
150 static int net_time_zone(struct net_context
*c
, int argc
, const char **argv
)
157 if (c
->display_usage
) {
162 _("Display the remote time server's offset to "
167 t
= nettime(c
, &zone
);
169 if (t
== 0) return -1;
171 zsign
= (zone
> 0) ? '-' : '+';
172 if (zone
< 0) zone
= -zone
;
178 printf("%c%02d%02d\n", zsign
, hours
, mins
);
183 /* display or set the time on a host */
184 int net_time(struct net_context
*c
, int argc
, const char **argv
)
187 struct functable func
[] = {
192 N_("Display time ready for /bin/date"),
193 N_("net time system\n"
194 " Display time ready for /bin/date")
200 N_("Set the system time from time server"),
202 " Set the system time from time server")
208 N_("Display timezone offset from UTC"),
210 " Display timezone offset from UTC")
212 {NULL
, NULL
, 0, NULL
, NULL
}
216 return net_run_function(c
, argc
, argv
, "net time", func
);
219 if (c
->display_usage
) {
224 _("Display the remote time server's time"));
225 net_display_usage_from_functable(func
);
229 if (!c
->opt_host
&& !c
->opt_have_ip
&&
230 !find_master_ip(c
->opt_target_workgroup
, &c
->opt_dest_ip
)) {
231 d_fprintf(stderr
, _("Could not locate a time server. Try "
232 "specifying a target host.\n"));
233 net_time_usage(c
, argc
,argv
);
237 /* default - print the time */
238 t
= cli_servertime(c
->opt_host
, c
->opt_have_ip
? &c
->opt_dest_ip
: NULL
,
240 if (t
== 0) return -1;
242 d_printf("%s", ctime(&t
));