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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/environment-d-generator/environment-d-generator.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/environment-d-generator/environment-d-generator.c | 99 |
1 files changed, 99 insertions, 0 deletions
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 0000000..e3fea1f --- /dev/null +++ b/src/environment-d-generator/environment-d-generator.c @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "sd-path.h" + +#include "conf-files.h" +#include "def.h" +#include "env-file.h" +#include "escape.h" +#include "glyph-util.h" +#include "log.h" +#include "main-func.h" +#include "path-lookup.h" +#include "strv.h" + +static int environment_dirs(char ***ret) { + _cleanup_strv_free_ char **dirs = NULL; + _cleanup_free_ char *c = NULL; + int r; + + dirs = strv_new(CONF_PATHS_USR("environment.d"), NULL); + if (!dirs) + return -ENOMEM; + + /* ~/.config/systemd/environment.d */ + r = sd_path_lookup(SD_PATH_USER_CONFIGURATION, "environment.d", &c); + if (r < 0) + return r; + + r = strv_extend_front(&dirs, c); + if (r < 0) + return r; + + if (DEBUG_LOGGING) { + _cleanup_free_ char *t = NULL; + + t = strv_join(dirs, "\n\t"); + log_debug("Looking for environment.d files in (higher priority first):\n\t%s", strna(t)); + } + + *ret = TAKE_PTR(dirs); + return 0; +} + +static int load_and_print(void) { + _cleanup_strv_free_ char **dirs = NULL, **files = NULL, **env = NULL; + int r; + + r = environment_dirs(&dirs); + if (r < 0) + return r; + + r = conf_files_list_strv(&files, ".conf", NULL, 0, (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) { + log_debug("Reading %s%s", *i, special_glyph(SPECIAL_GLYPH_ELLIPSIS)); + + 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, 0); + if (!q) + return log_oom(); + + printf("%.*s=%s\n", (int) (t - *i), *i, q); + } + + return 0; +} + +static int run(int argc, char *argv[]) { + int r; + + log_parse_environment(); + log_open(); + + if (argc > 1) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program takes no arguments."); + + r = load_and_print(); + if (r < 0) + return log_error_errno(r, "Failed to load environment.d: %m"); + return 0; +} + +DEFINE_MAIN_FUNCTION(run); |