Fix comments and enforce expected return values
[lttng-tools.git] / src / bin / lttng / utils.c
CommitLineData
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1/*
2 * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
3 *
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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.
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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 along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19#include <stdlib.h>
679b4943 20#include <ctype.h>
f3ed775e 21
db758600 22#include <common/error.h>
f3ed775e 23
beb8c75a 24#include "conf.h"
679b4943 25#include "utils.h"
f3ed775e 26
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27/*
28 * get_session_name
29 *
30 * Return allocated string with the session name found in the config
31 * directory.
32 */
33char *get_session_name(void)
34{
35 char *path, *session_name = NULL;
36
37 /* Get path to config file */
58a97671 38 path = config_get_default_path();
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39 if (path == NULL) {
40 goto error;
41 }
42
43 /* Get session name from config */
44 session_name = config_read_session_name(path);
45 if (session_name == NULL) {
58a97671 46 goto error;
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47 }
48
f3ed775e 49error:
cd80958d 50 DBG("Session name found: %s", session_name);
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51 return session_name;
52}
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53
54
55/*
56 * list_cmd_options
57 *
58 * Prints a simple list of the options available to a command. This is intended
59 * to be easily parsed for bash completion.
60 */
61void list_cmd_options(FILE *ofp, struct poptOption *options)
62{
63 int i;
64 struct poptOption *option = NULL;
65
66 for (i = 0; options[i].longName != NULL; i++) {
67 option = &options[i];
68
69 fprintf(ofp, "--%s\n", option->longName);
70
71 if (isprint(option->shortName)) {
72 fprintf(ofp, "-%c\n", option->shortName);
73 }
74 }
75}
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