Commit | Line | Data |
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f3ed775e DG |
1 | /* |
2 | * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
f3ed775e DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along | |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
4c462e79 | 18 | #define _GNU_SOURCE |
f3ed775e | 19 | #include <stdlib.h> |
679b4943 | 20 | #include <ctype.h> |
3badf2bf | 21 | #include <limits.h> |
f3ed775e | 22 | |
db758600 | 23 | #include <common/error.h> |
f3ed775e | 24 | |
beb8c75a | 25 | #include "conf.h" |
679b4943 | 26 | #include "utils.h" |
f3ed775e | 27 | |
3badf2bf DG |
28 | /* |
29 | * Return the realpath(3) of the path even if the last directory token does not | |
30 | * exist. For example, with /tmp/test1/test2, if test2/ does not exist but the | |
31 | * /tmp/test1 does, the real path is returned. In normal time, realpath(3) | |
32 | * fails if the end point directory does not exist. | |
33 | */ | |
34 | char *expand_full_path(const char *path) | |
35 | { | |
36 | const char *end_path = path; | |
37 | char *next, *cut_path, *expanded_path; | |
38 | ||
39 | /* Find last token delimited by '/' */ | |
40 | while ((next = strpbrk(end_path + 1, "/"))) { | |
41 | end_path = next; | |
42 | } | |
43 | ||
44 | /* Cut last token from original path */ | |
45 | cut_path = strndup(path, end_path - path); | |
46 | ||
47 | expanded_path = malloc(PATH_MAX); | |
48 | if (expanded_path == NULL) { | |
49 | goto error; | |
50 | } | |
51 | ||
52 | expanded_path = realpath((char *)cut_path, expanded_path); | |
53 | if (expanded_path == NULL) { | |
54 | switch (errno) { | |
55 | case ENOENT: | |
56 | ERR("%s: No such file or directory", cut_path); | |
57 | break; | |
58 | default: | |
59 | perror("realpath"); | |
60 | break; | |
61 | } | |
62 | goto error; | |
63 | } | |
64 | ||
65 | /* Add end part to expanded path */ | |
66 | strcat(expanded_path, end_path); | |
67 | ||
68 | free(cut_path); | |
69 | return expanded_path; | |
70 | ||
71 | error: | |
72 | free(cut_path); | |
73 | return NULL; | |
74 | } | |
75 | ||
f3ed775e DG |
76 | /* |
77 | * get_session_name | |
78 | * | |
79 | * Return allocated string with the session name found in the config | |
80 | * directory. | |
81 | */ | |
82 | char *get_session_name(void) | |
83 | { | |
84 | char *path, *session_name = NULL; | |
85 | ||
86 | /* Get path to config file */ | |
58a97671 | 87 | path = config_get_default_path(); |
f3ed775e DG |
88 | if (path == NULL) { |
89 | goto error; | |
90 | } | |
91 | ||
92 | /* Get session name from config */ | |
93 | session_name = config_read_session_name(path); | |
94 | if (session_name == NULL) { | |
58a97671 | 95 | goto error; |
f3ed775e DG |
96 | } |
97 | ||
3183dbb0 | 98 | DBG2("Config file path found: %s", path); |
cd80958d | 99 | DBG("Session name found: %s", session_name); |
f3ed775e | 100 | return session_name; |
3183dbb0 DG |
101 | |
102 | error: | |
103 | return NULL; | |
f3ed775e | 104 | } |
679b4943 SM |
105 | |
106 | ||
107 | /* | |
108 | * list_cmd_options | |
109 | * | |
110 | * Prints a simple list of the options available to a command. This is intended | |
111 | * to be easily parsed for bash completion. | |
112 | */ | |
113 | void list_cmd_options(FILE *ofp, struct poptOption *options) | |
114 | { | |
115 | int i; | |
116 | struct poptOption *option = NULL; | |
117 | ||
118 | for (i = 0; options[i].longName != NULL; i++) { | |
119 | option = &options[i]; | |
120 | ||
121 | fprintf(ofp, "--%s\n", option->longName); | |
122 | ||
123 | if (isprint(option->shortName)) { | |
124 | fprintf(ofp, "-%c\n", option->shortName); | |
125 | } | |
126 | } | |
127 | } |