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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f63c4aab ZJS |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2017 Zbigniew Jędrzejewski-Szmek | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
21 | #include "sd-path.h" | |
22 | ||
23 | #include "conf-files.h" | |
24 | #include "def.h" | |
25 | #include "escape.h" | |
26 | #include "fileio.h" | |
27 | #include "log.h" | |
28 | #include "path-lookup.h" | |
29 | ||
30 | static int environment_dirs(char ***ret) { | |
31 | _cleanup_strv_free_ char **dirs = NULL; | |
32 | _cleanup_free_ char *c = NULL; | |
33 | int r; | |
34 | ||
35 | dirs = strv_split_nulstr(CONF_PATHS_NULSTR("environment.d")); | |
36 | if (!dirs) | |
37 | return -ENOMEM; | |
38 | ||
39 | /* ~/.config/systemd/environment.d */ | |
40 | r = sd_path_home(SD_PATH_USER_CONFIGURATION, "environment.d", &c); | |
41 | if (r < 0) | |
42 | return r; | |
43 | ||
44 | r = strv_extend_front(&dirs, c); | |
45 | if (r < 0) | |
46 | return r; | |
47 | ||
48 | *ret = dirs; | |
49 | dirs = NULL; | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static int load_and_print(void) { | |
54 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL, **env = NULL; | |
55 | char **i; | |
56 | int r; | |
57 | ||
58 | r = environment_dirs(&dirs); | |
59 | if (r < 0) | |
60 | return r; | |
61 | ||
b5084605 | 62 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char **) dirs); |
f63c4aab ZJS |
63 | if (r < 0) |
64 | return r; | |
65 | ||
66 | /* This will mutate the existing environment, based on the presumption | |
67 | * that in case of failure, a partial update is better than none. */ | |
68 | ||
69 | STRV_FOREACH(i, files) { | |
70 | r = merge_env_file(&env, NULL, *i); | |
71 | if (r == -ENOMEM) | |
72 | return r; | |
73 | } | |
74 | ||
75 | STRV_FOREACH(i, env) { | |
76 | char *t; | |
77 | _cleanup_free_ char *q = NULL; | |
78 | ||
79 | t = strchr(*i, '='); | |
80 | assert(t); | |
81 | ||
804ee07c | 82 | q = shell_maybe_quote(t + 1, ESCAPE_BACKSLASH); |
f63c4aab ZJS |
83 | if (!q) |
84 | return log_oom(); | |
85 | ||
86 | printf("%.*s=%s\n", (int) (t - *i), *i, q); | |
87 | } | |
88 | ||
89 | return 0; | |
90 | } | |
91 | ||
92 | int main(int argc, char *argv[]) { | |
93 | int r; | |
94 | ||
95 | log_parse_environment(); | |
96 | log_open(); | |
97 | ||
98 | if (argc > 1) { | |
99 | log_error("This program takes no arguments."); | |
100 | return EXIT_FAILURE; | |
101 | } | |
102 | ||
103 | r = load_and_print(); | |
104 | if (r < 0) | |
105 | log_error_errno(r, "Failed to load environment.d: %m"); | |
106 | ||
107 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
108 | } |