108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2017 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "sd-path.h"
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#include "conf-files.h"
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#include "def.h"
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#include "escape.h"
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#include "fileio.h"
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#include "log.h"
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#include "path-lookup.h"
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static int environment_dirs(char ***ret) {
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_cleanup_strv_free_ char **dirs = NULL;
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_cleanup_free_ char *c = NULL;
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int r;
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dirs = strv_split_nulstr(CONF_PATHS_NULSTR("environment.d"));
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if (!dirs)
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return -ENOMEM;
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/* ~/.config/systemd/environment.d */
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r = sd_path_home(SD_PATH_USER_CONFIGURATION, "environment.d", &c);
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if (r < 0)
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return r;
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r = strv_extend_front(&dirs, c);
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if (r < 0)
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return r;
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*ret = TAKE_PTR(dirs);
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return 0;
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}
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static int load_and_print(void) {
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_cleanup_strv_free_ char **dirs = NULL, **files = NULL, **env = NULL;
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char **i;
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int r;
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r = environment_dirs(&dirs);
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if (r < 0)
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return r;
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r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char **) dirs);
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if (r < 0)
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return r;
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/* This will mutate the existing environment, based on the presumption
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* that in case of failure, a partial update is better than none. */
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STRV_FOREACH(i, files) {
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r = merge_env_file(&env, NULL, *i);
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if (r == -ENOMEM)
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return r;
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}
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STRV_FOREACH(i, env) {
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char *t;
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_cleanup_free_ char *q = NULL;
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t = strchr(*i, '=');
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assert(t);
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q = shell_maybe_quote(t + 1, ESCAPE_BACKSLASH);
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if (!q)
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return log_oom();
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printf("%.*s=%s\n", (int) (t - *i), *i, q);
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}
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return 0;
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}
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int main(int argc, char *argv[]) {
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int r;
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log_parse_environment();
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log_open();
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if (argc > 1) {
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log_error("This program takes no arguments.");
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return EXIT_FAILURE;
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}
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r = load_and_print();
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if (r < 0)
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log_error_errno(r, "Failed to load environment.d: %m");
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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