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