2 Samba Unix/Linux SMB client library
5 Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
22 #include "../utils/net.h"
26 return the time on a server. This does not require any authentication
28 static time_t cli_servertime(const char *host, struct in_addr *ip)
30 struct nmb_name calling, called;
32 extern pstring global_myname;
33 struct cli_state *cli = NULL;
35 cli = cli_initialise(NULL);
38 if (!cli_connect(cli, host, ip)) {
39 fprintf(stderr,"Can't contact server\n");
43 make_nmb_name(&calling, global_myname, 0x0);
45 make_nmb_name(&called, host, 0x20);
47 make_nmb_name(&called, "*SMBSERVER", 0x20);
50 if (!cli_session_request(cli, &calling, &called)) {
51 fprintf(stderr,"Session request failed\n");
54 if (!cli_negprot(cli)) {
55 fprintf(stderr,"Protocol negotiation failed\n");
59 ret = cli->servertime;
62 if (cli) cli_shutdown(cli);
66 /* find the servers time on the opt_host host */
67 static time_t nettime(void)
69 extern BOOL opt_have_ip;
70 extern struct in_addr opt_dest_ip;
71 extern char *opt_host;
72 return cli_servertime(opt_host, opt_have_ip? &opt_dest_ip : NULL);
75 /* return a time as a string ready to be passed to date -u */
76 static char *systime(time_t t)
83 snprintf(s, sizeof(s), "%02d%02d%02d%02d%04d.%02d",
84 tm->tm_mon+1, tm->tm_mday, tm->tm_hour,
85 tm->tm_min, tm->tm_year + 1900, tm->tm_sec);
89 int net_time_usage(int argc, const char **argv)
92 "net time\n\tdisplays time on a server\n\n"\
93 "net time system\n\tdisplays time on a server in a format ready for /bin/date\n\n"\
94 "net time set\n\truns /bin/date -u with the time from the server\n\n"\
96 general_rap_usage(argc, argv);
100 /* try to set the system clock using /bin/date */
101 static int net_time_set(int argc, const char **argv)
103 time_t t = nettime();
106 if (t == 0) return -1;
108 /* yes, I know this is cheesy. Use "net time system" if you want to
109 roll your own. I'm putting this in as it works on a large number
110 of systems and the user has a choice in whether its used or not */
111 asprintf(&cmd, "/bin/date -u %s", systime(t));
118 /* display the time on a remote box in a format ready for /bin/date */
119 static int net_time_system(int argc, const char **argv)
121 time_t t = nettime();
123 if (t == 0) return -1;
125 printf("%s\n", systime(t));
130 /* display or set the time on a host */
131 int net_time(int argc, const char **argv)
134 extern BOOL opt_have_ip;
135 extern struct in_addr opt_dest_ip;
136 extern char *opt_host;
137 struct functable func[] = {
138 {"SYSTEM", net_time_system},
139 {"SET", net_time_set},
143 if (!opt_host && !opt_have_ip) {
144 d_printf("You must specify a hostname or IP\n");
149 return net_run_function(argc, argv, func, net_time_usage);
152 /* default - print the time */
153 t = cli_servertime(opt_host, opt_have_ip? &opt_dest_ip : NULL);
154 if (t == 0) return -1;
156 d_printf("%s", ctime(&t));