Fix build system for valid make dist
[lttng-tools.git] / lttng / commands / version.c
1 /*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; only version 2
7 * of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 #define _GNU_SOURCE
20 #include <popt.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <sys/stat.h>
25 #include <sys/types.h>
26 #include <unistd.h>
27
28 #include "../cmd.h"
29
30 enum {
31 OPT_HELP = 1,
32 };
33
34 static struct poptOption long_options[] = {
35 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
36 {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
37 {0, 0, 0, 0, 0, 0, 0}
38 };
39
40 /*
41 * usage
42 */
43 static void usage(FILE *ofp)
44 {
45 fprintf(ofp, "usage: lttng version\n");
46 fprintf(ofp, "\n");
47 fprintf(ofp, " -h, --help Show this help\n");
48 fprintf(ofp, "\n");
49 }
50
51 /*
52 * cmd_version
53 */
54 int cmd_version(int argc, const char **argv)
55 {
56 int opt, ret = CMD_SUCCESS;
57 static poptContext pc;
58
59 pc = poptGetContext(NULL, argc, argv, long_options, 0);
60 poptReadDefaultConfig(pc, 0);
61
62 while ((opt = poptGetNextOpt(pc)) != -1) {
63 switch (opt) {
64 case OPT_HELP:
65 usage(stderr);
66 ret = CMD_SUCCESS;
67 goto end;
68 default:
69 usage(stderr);
70 ret = CMD_UNDEFINED;
71 goto end;
72 }
73 }
74
75 MSG("lttng version " VERSION);
76 MSG("Web site: http://lttng.org/");
77 MSG("\nlttng is free software and under the GPL license.");
78
79 end:
80 return ret;
81 }
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