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,
63 const char * const data_unit_paths[] = {
64 "/usr/local/lib/systemd/user",
65 "/usr/local/share/systemd/user",
67 "/usr/lib/systemd/user",
68 "/usr/share/systemd/user",
73 char *config_home = NULL, *data_home = NULL;
74 char **config_dirs = NULL, **data_dirs = NULL;
77 /* Implement the mechanisms defined in
79 * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
81 * We look in both the config and the data dirs because we
82 * want to encourage that distributors ship their unit files
83 * as data, and allow overriding as configuration.
86 if (user_config_home(&config_home) < 0)
89 home = getenv("HOME");
91 if ((e = getenv("XDG_CONFIG_DIRS")))
92 if (!(config_dirs = strv_split(e, ":")))
95 /* We don't treat /etc/xdg/systemd here as the spec
96 * suggests because we assume that that is a link to
97 * /etc/systemd/ anyway. */
99 if ((e = getenv("XDG_DATA_HOME"))) {
100 if (asprintf(&data_home, "%s/systemd/user", e) < 0)
104 if (asprintf(&data_home, "%s/.local/share/systemd/user", home) < 0)
107 /* There is really no need for two unit dirs in $HOME,
108 * except to be fully compliant with the XDG spec. We
109 * now try to link the two dirs, so that we can
110 * minimize disk seeks a little. Further down we'll
111 * then filter out this link, if it is actually is
114 mkdir_parents(data_home, 0777);
115 (void) symlink("../../../.config/systemd/user", data_home);
118 if ((e = getenv("XDG_DATA_DIRS")))
119 data_dirs = strv_split(e, ":");
121 data_dirs = strv_new("/usr/local/share",
128 /* Now merge everything we found. */
130 if (!(t = strv_append(r, config_home)))
136 if (!strv_isempty(config_dirs)) {
137 if (!(t = strv_merge_concat(r, config_dirs, "/systemd/user")))
143 if (!(t = strv_merge(r, (char**) config_unit_paths)))
149 if (!(t = strv_append(r, data_home)))
155 if (!strv_isempty(data_dirs)) {
156 if (!(t = strv_merge_concat(r, data_dirs, "/systemd/user")))
162 if (!(t = strv_merge(r, (char**) data_unit_paths)))
167 if (!strv_path_make_absolute_cwd(r))
172 strv_free(config_dirs);
174 strv_free(data_dirs);
184 int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal) {
190 /* First priority is whatever has been passed to us via env
192 if ((e = getenv("SYSTEMD_UNIT_PATH")))
193 if (!(p->unit_path = split_path_and_make_absolute(e)))
196 if (strv_isempty(p->unit_path)) {
198 /* Nothing is set, so let's figure something out. */
199 strv_free(p->unit_path);
201 if (running_as == MANAGER_USER) {
204 p->unit_path = user_dirs();
206 p->unit_path = strv_new(
207 /* If you modify this you also want to modify
208 * systemduserunitpath= in systemd.pc.in, and
209 * the arrays in user_dirs() above! */
211 USER_CONFIG_UNIT_PATH,
213 "/usr/local/lib/systemd/user",
214 "/usr/local/share/systemd/user",
216 "/usr/lib/systemd/user",
217 "/usr/share/systemd/user",
224 if (!(p->unit_path = strv_new(
225 /* If you modify this you also want to modify
226 * systemdsystemunitpath= in systemd.pc.in! */
227 "/run/systemd/system",
228 SYSTEM_CONFIG_UNIT_PATH,
229 "/etc/systemd/system",
230 "/usr/local/lib/systemd/system",
231 "/usr/lib/systemd/system",
232 SYSTEM_DATA_UNIT_PATH,
233 #ifdef HAVE_SPLIT_USR
234 "/lib/systemd/system",
241 if (!strv_path_canonicalize(p->unit_path))
244 strv_uniq(p->unit_path);
245 strv_path_remove_empty(p->unit_path);
247 if (!strv_isempty(p->unit_path)) {
249 if (!(t = strv_join(p->unit_path, "\n\t")))
251 log_debug("Looking for unit files in:\n\t%s", t);
254 log_debug("Ignoring unit files.");
255 strv_free(p->unit_path);
259 if (running_as == MANAGER_SYSTEM) {
260 #ifdef HAVE_SYSV_COMPAT
261 /* /etc/init.d/ compatibility does not matter to users */
263 if ((e = getenv("SYSTEMD_SYSVINIT_PATH")))
264 if (!(p->sysvinit_path = split_path_and_make_absolute(e)))
267 if (strv_isempty(p->sysvinit_path)) {
268 strv_free(p->sysvinit_path);
270 if (!(p->sysvinit_path = strv_new(
271 SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */
276 if ((e = getenv("SYSTEMD_SYSVRCND_PATH")))
277 if (!(p->sysvrcnd_path = split_path_and_make_absolute(e)))
280 if (strv_isempty(p->sysvrcnd_path)) {
281 strv_free(p->sysvrcnd_path);
283 if (!(p->sysvrcnd_path = strv_new(
284 SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */
289 if (p->sysvinit_path)
290 if (!strv_path_canonicalize(p->sysvinit_path))
293 if (p->sysvrcnd_path)
294 if (!strv_path_canonicalize(p->sysvrcnd_path))
297 strv_uniq(p->sysvinit_path);
298 strv_uniq(p->sysvrcnd_path);
300 strv_path_remove_empty(p->sysvinit_path);
301 strv_path_remove_empty(p->sysvrcnd_path);
303 if (!strv_isempty(p->sysvinit_path)) {
305 if (!(t = strv_join(p->sysvinit_path, "\n\t")))
308 log_debug("Looking for SysV init scripts in:\n\t%s", t);
311 log_debug("Ignoring SysV init scripts.");
312 strv_free(p->sysvinit_path);
313 p->sysvinit_path = NULL;
316 if (!strv_isempty(p->sysvrcnd_path)) {
318 if (!(t = strv_join(p->sysvrcnd_path, "\n\t")))
321 log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
324 log_debug("Ignoring SysV rcN.d links.");
325 strv_free(p->sysvrcnd_path);
326 p->sysvrcnd_path = NULL;
329 log_debug("Disabled SysV init scripts and rcN.d links support");
336 void lookup_paths_free(LookupPaths *p) {
339 strv_free(p->unit_path);
342 #ifdef HAVE_SYSV_COMPAT
343 strv_free(p->sysvinit_path);
344 strv_free(p->sysvrcnd_path);
345 p->sysvinit_path = p->sysvrcnd_path = NULL;