diff options
Diffstat (limited to 'src/environment-d-generator')
| l--------- | src/environment-d-generator/Makefile | 1 | ||||
| -rw-r--r-- | src/environment-d-generator/environment-d-generator.c | 107 |
2 files changed, 108 insertions, 0 deletions
diff --git a/src/environment-d-generator/Makefile b/src/environment-d-generator/Makefile new file mode 120000 index 0000000000..d0b0e8e008 --- /dev/null +++ b/src/environment-d-generator/Makefile @@ -0,0 +1 @@ +../Makefile
\ No newline at end of file diff --git a/src/environment-d-generator/environment-d-generator.c b/src/environment-d-generator/environment-d-generator.c new file mode 100644 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; +} |