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Diffstat (limited to 'src/environment-d-generator/environment-d-generator.c')
-rw-r--r--src/environment-d-generator/environment-d-generator.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/src/environment-d-generator/environment-d-generator.c b/src/environment-d-generator/environment-d-generator.c
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index 0000000000..2d4c4235e4
--- /dev/null
+++ b/src/environment-d-generator/environment-d-generator.c
@@ -0,0 +1,107 @@
+/***
+ 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;
+}