1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
31 #include "path-lookup.h"
33 int user_config_home(char **config_home) {
36 if ((e = getenv("XDG_CONFIG_HOME"))) {
37 if (asprintf(config_home, "%s/systemd/user", e) < 0)
44 if ((home = getenv("HOME"))) {
45 if (asprintf(config_home, "%s/.config/systemd/user", home) < 0)
55 static char** user_dirs(void) {
56 const char * const config_unit_paths[] = {
58 USER_CONFIG_UNIT_PATH,
62 const char * const data_unit_paths[] = {
63 "/usr/local/lib/systemd/user",
64 "/usr/local/share/systemd/user",
66 "/usr/lib/systemd/user",
67 "/usr/share/systemd/user"
71 char *config_home = NULL, *data_home = NULL;
72 char **config_dirs = NULL, **data_dirs = NULL;
75 /* Implement the mechanisms defined in
77 * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
79 * We look in both the config and the data dirs because we
80 * want to encourage that distributors ship their unit files
81 * as data, and allow overriding as configuration.
84 if (user_config_home(&config_home) < 0)
87 home = getenv("HOME");
89 if ((e = getenv("XDG_CONFIG_DIRS")))
90 if (!(config_dirs = strv_split(e, ":")))
93 /* We don't treat /etc/xdg/systemd here as the spec
94 * suggests because we assume that that is a link to
95 * /etc/systemd/ anyway. */
97 if ((e = getenv("XDG_DATA_HOME"))) {
98 if (asprintf(&data_home, "%s/systemd/user", e) < 0)
102 if (asprintf(&data_home, "%s/.local/share/systemd/user", home) < 0)
105 /* There is really no need for two unit dirs in $HOME,
106 * except to be fully compliant with the XDG spec. We
107 * now try to link the two dirs, so that we can
108 * minimize disk seeks a little. Further down we'll
109 * then filter out this link, if it is actually is
112 mkdir_parents(data_home, 0777);
113 (void) symlink("../../../.config/systemd/user", data_home);
116 if ((e = getenv("XDG_DATA_DIRS")))
117 data_dirs = strv_split(e, ":");
119 data_dirs = strv_new("/usr/local/share",
126 /* Now merge everything we found. */
128 if (!(t = strv_append(r, config_home)))
134 if (!strv_isempty(config_dirs)) {
135 if (!(t = strv_merge_concat(r, config_dirs, "/systemd/user")))
141 if (!(t = strv_merge(r, (char**) config_unit_paths)))
147 if (!(t = strv_append(r, data_home)))
153 if (!strv_isempty(data_dirs)) {
154 if (!(t = strv_merge_concat(r, data_dirs, "/systemd/user")))
160 if (!(t = strv_merge(r, (char**) data_unit_paths)))
165 if (!strv_path_make_absolute_cwd(r))
170 strv_free(config_dirs);
172 strv_free(data_dirs);
182 int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal) {
188 /* First priority is whatever has been passed to us via env
190 if ((e = getenv("SYSTEMD_UNIT_PATH")))
191 if (!(p->unit_path = split_path_and_make_absolute(e)))
194 if (strv_isempty(p->unit_path)) {
196 /* Nothing is set, so let's figure something out. */
197 strv_free(p->unit_path);
199 if (running_as == MANAGER_USER) {
202 p->unit_path = user_dirs();
204 p->unit_path = strv_new(
205 /* If you modify this you also want to modify
206 * systemduserunitpath= in systemd.pc.in, and
207 * the arrays in user_dirs() above! */
209 USER_CONFIG_UNIT_PATH,
210 "/etc/systemd/system",
211 "/usr/local/lib/systemd/user",
212 "/usr/local/share/systemd/user",
214 "/usr/lib/systemd/user",
215 "/usr/share/systemd/user",
222 if (!(p->unit_path = strv_new(
223 /* If you modify this you also want to modify
224 * systemdsystemunitpath= in systemd.pc.in! */
225 "/run/systemd/system",
226 SYSTEM_CONFIG_UNIT_PATH,
227 "/etc/systemd/system",
228 "/usr/local/lib/systemd/system",
229 "/usr/lib/systemd/system",
230 SYSTEM_DATA_UNIT_PATH,
231 "/lib/systemd/system",
237 if (!strv_path_canonicalize(p->unit_path))
240 strv_uniq(p->unit_path);
241 strv_path_remove_empty(p->unit_path);
243 if (!strv_isempty(p->unit_path)) {
245 if (!(t = strv_join(p->unit_path, "\n\t")))
247 log_debug("Looking for unit files in:\n\t%s", t);
250 log_debug("Ignoring unit files.");
251 strv_free(p->unit_path);
255 if (running_as == MANAGER_SYSTEM) {
256 #ifdef HAVE_SYSV_COMPAT
257 /* /etc/init.d/ compatibility does not matter to users */
259 if ((e = getenv("SYSTEMD_SYSVINIT_PATH")))
260 if (!(p->sysvinit_path = split_path_and_make_absolute(e)))
263 if (strv_isempty(p->sysvinit_path)) {
264 strv_free(p->sysvinit_path);
266 if (!(p->sysvinit_path = strv_new(
267 SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */
272 if ((e = getenv("SYSTEMD_SYSVRCND_PATH")))
273 if (!(p->sysvrcnd_path = split_path_and_make_absolute(e)))
276 if (strv_isempty(p->sysvrcnd_path)) {
277 strv_free(p->sysvrcnd_path);
279 if (!(p->sysvrcnd_path = strv_new(
280 SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */
285 if (p->sysvinit_path)
286 if (!strv_path_canonicalize(p->sysvinit_path))
289 if (p->sysvrcnd_path)
290 if (!strv_path_canonicalize(p->sysvrcnd_path))
293 strv_uniq(p->sysvinit_path);
294 strv_uniq(p->sysvrcnd_path);
296 strv_path_remove_empty(p->sysvinit_path);
297 strv_path_remove_empty(p->sysvrcnd_path);
299 if (!strv_isempty(p->sysvinit_path)) {
301 if (!(t = strv_join(p->sysvinit_path, "\n\t")))
304 log_debug("Looking for SysV init scripts in:\n\t%s", t);
307 log_debug("Ignoring SysV init scripts.");
308 strv_free(p->sysvinit_path);
309 p->sysvinit_path = NULL;
312 if (!strv_isempty(p->sysvrcnd_path)) {
314 if (!(t = strv_join(p->sysvrcnd_path, "\n\t")))
317 log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
320 log_debug("Ignoring SysV rcN.d links.");
321 strv_free(p->sysvrcnd_path);
322 p->sysvrcnd_path = NULL;
325 log_debug("Disabled SysV init scripts and rcN.d links support");
332 void lookup_paths_free(LookupPaths *p) {
335 strv_free(p->unit_path);
338 #ifdef HAVE_SYSV_COMPAT
339 strv_free(p->sysvinit_path);
340 strv_free(p->sysvrcnd_path);
341 p->sysvinit_path = p->sysvrcnd_path = NULL;