+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- 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 <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "util.h"
-#include "mkdir.h"
-#include "strv.h"
-
-#include "path-lookup.h"
-
-int user_config_home(char **config_home) {
- const char *e;
-
- if ((e = getenv("XDG_CONFIG_HOME"))) {
- if (asprintf(config_home, "%s/systemd/user", e) < 0)
- return -ENOMEM;
-
- return 1;
- } else {
- const char *home;
-
- if ((home = getenv("HOME"))) {
- if (asprintf(config_home, "%s/.config/systemd/user", home) < 0)
- return -ENOMEM;
-
- return 1;
- }
- }
-
- return 0;
-}
-
-static char** user_dirs(void) {
- const char * const config_unit_paths[] = {
- USER_CONFIG_UNIT_PATH,
- "/etc/systemd/user",
- "/run/systemd/user",
- NULL
- };
-
- const char * const data_unit_paths[] = {
- "/usr/local/lib/systemd/user",
- "/usr/local/share/systemd/user",
- USER_DATA_UNIT_PATH,
- "/usr/lib/systemd/user",
- "/usr/share/systemd/user",
- NULL
- };
-
- const char *home, *e;
- char *config_home = NULL, *data_home = NULL;
- char **config_dirs = NULL, **data_dirs = NULL;
- char **r = NULL, **t;
-
- /* Implement the mechanisms defined in
- *
- * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
- *
- * We look in both the config and the data dirs because we
- * want to encourage that distributors ship their unit files
- * as data, and allow overriding as configuration.
- */
-
- if (user_config_home(&config_home) < 0)
- goto fail;
-
- home = getenv("HOME");
-
- if ((e = getenv("XDG_CONFIG_DIRS")))
- if (!(config_dirs = strv_split(e, ":")))
- goto fail;
-
- /* We don't treat /etc/xdg/systemd here as the spec
- * suggests because we assume that that is a link to
- * /etc/systemd/ anyway. */
-
- if ((e = getenv("XDG_DATA_HOME"))) {
- if (asprintf(&data_home, "%s/systemd/user", e) < 0)
- goto fail;
-
- } else if (home) {
- if (asprintf(&data_home, "%s/.local/share/systemd/user", home) < 0)
- goto fail;
-
- /* There is really no need for two unit dirs in $HOME,
- * except to be fully compliant with the XDG spec. We
- * now try to link the two dirs, so that we can
- * minimize disk seeks a little. Further down we'll
- * then filter out this link, if it is actually is
- * one. */
-
- mkdir_parents(data_home, 0777);
- (void) symlink("../../../.config/systemd/user", data_home);
- }
-
- if ((e = getenv("XDG_DATA_DIRS")))
- data_dirs = strv_split(e, ":");
- else
- data_dirs = strv_new("/usr/local/share",
- "/usr/share",
- NULL);
-
- if (!data_dirs)
- goto fail;
-
- /* Now merge everything we found. */
- if (config_home) {
- if (!(t = strv_append(r, config_home)))
- goto fail;
- strv_free(r);
- r = t;
- }
-
- if (!strv_isempty(config_dirs)) {
- if (!(t = strv_merge_concat(r, config_dirs, "/systemd/user")))
- goto finish;
- strv_free(r);
- r = t;
- }
-
- if (!(t = strv_merge(r, (char**) config_unit_paths)))
- goto fail;
- strv_free(r);
- r = t;
-
- if (data_home) {
- if (!(t = strv_append(r, data_home)))
- goto fail;
- strv_free(r);
- r = t;
- }
-
- if (!strv_isempty(data_dirs)) {
- if (!(t = strv_merge_concat(r, data_dirs, "/systemd/user")))
- goto fail;
- strv_free(r);
- r = t;
- }
-
- if (!(t = strv_merge(r, (char**) data_unit_paths)))
- goto fail;
- strv_free(r);
- r = t;
-
- if (!strv_path_make_absolute_cwd(r))
- goto fail;
-
-finish:
- free(config_home);
- strv_free(config_dirs);
- free(data_home);
- strv_free(data_dirs);
-
- return r;
-
-fail:
- strv_free(r);
- r = NULL;
- goto finish;
-}
-
-int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal) {
- const char *e;
- char *t;
-
- assert(p);
-
- /* First priority is whatever has been passed to us via env
- * vars */
- if ((e = getenv("SYSTEMD_UNIT_PATH")))
- if (!(p->unit_path = split_path_and_make_absolute(e)))
- return -ENOMEM;
-
- if (strv_isempty(p->unit_path)) {
-
- /* Nothing is set, so let's figure something out. */
- strv_free(p->unit_path);
-
- if (running_as == MANAGER_USER) {
-
- if (personal)
- p->unit_path = user_dirs();
- else
- p->unit_path = strv_new(
- /* If you modify this you also want to modify
- * systemduserunitpath= in systemd.pc.in, and
- * the arrays in user_dirs() above! */
- USER_CONFIG_UNIT_PATH,
- "/etc/systemd/user",
- "/run/systemd/user",
- "/usr/local/lib/systemd/user",
- "/usr/local/share/systemd/user",
- USER_DATA_UNIT_PATH,
- "/usr/lib/systemd/user",
- "/usr/share/systemd/user",
- NULL);
-
- if (!p->unit_path)
- return -ENOMEM;
-
- } else
- if (!(p->unit_path = strv_new(
- /* If you modify this you also want to modify
- * systemdsystemunitpath= in systemd.pc.in! */
- SYSTEM_CONFIG_UNIT_PATH,
- "/etc/systemd/system",
- "/run/systemd/system",
- "/usr/local/lib/systemd/system",
- SYSTEM_DATA_UNIT_PATH,
- "/usr/lib/systemd/system",
-#ifdef HAVE_SPLIT_USR
- "/lib/systemd/system",
-#endif
- NULL)))
- return -ENOMEM;
- }
-
- if (p->unit_path)
- if (!strv_path_canonicalize(p->unit_path))
- return -ENOMEM;
-
- strv_uniq(p->unit_path);
- strv_path_remove_empty(p->unit_path);
-
- if (!strv_isempty(p->unit_path)) {
-
- if (!(t = strv_join(p->unit_path, "\n\t")))
- return -ENOMEM;
- log_debug("Looking for unit files in:\n\t%s", t);
- free(t);
- } else {
- log_debug("Ignoring unit files.");
- strv_free(p->unit_path);
- p->unit_path = NULL;
- }
-
- if (running_as == MANAGER_SYSTEM) {
-#ifdef HAVE_SYSV_COMPAT
- /* /etc/init.d/ compatibility does not matter to users */
-
- if ((e = getenv("SYSTEMD_SYSVINIT_PATH")))
- if (!(p->sysvinit_path = split_path_and_make_absolute(e)))
- return -ENOMEM;
-
- if (strv_isempty(p->sysvinit_path)) {
- strv_free(p->sysvinit_path);
-
- if (!(p->sysvinit_path = strv_new(
- SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */
- NULL)))
- return -ENOMEM;
- }
-
- if ((e = getenv("SYSTEMD_SYSVRCND_PATH")))
- if (!(p->sysvrcnd_path = split_path_and_make_absolute(e)))
- return -ENOMEM;
-
- if (strv_isempty(p->sysvrcnd_path)) {
- strv_free(p->sysvrcnd_path);
-
- if (!(p->sysvrcnd_path = strv_new(
- SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */
- NULL)))
- return -ENOMEM;
- }
-
- if (p->sysvinit_path)
- if (!strv_path_canonicalize(p->sysvinit_path))
- return -ENOMEM;
-
- if (p->sysvrcnd_path)
- if (!strv_path_canonicalize(p->sysvrcnd_path))
- return -ENOMEM;
-
- strv_uniq(p->sysvinit_path);
- strv_uniq(p->sysvrcnd_path);
-
- strv_path_remove_empty(p->sysvinit_path);
- strv_path_remove_empty(p->sysvrcnd_path);
-
- if (!strv_isempty(p->sysvinit_path)) {
-
- if (!(t = strv_join(p->sysvinit_path, "\n\t")))
- return -ENOMEM;
-
- log_debug("Looking for SysV init scripts in:\n\t%s", t);
- free(t);
- } else {
- log_debug("Ignoring SysV init scripts.");
- strv_free(p->sysvinit_path);
- p->sysvinit_path = NULL;
- }
-
- if (!strv_isempty(p->sysvrcnd_path)) {
-
- if (!(t = strv_join(p->sysvrcnd_path, "\n\t")))
- return -ENOMEM;
-
- log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
- free(t);
- } else {
- log_debug("Ignoring SysV rcN.d links.");
- strv_free(p->sysvrcnd_path);
- p->sysvrcnd_path = NULL;
- }
-#else
- log_debug("Disabled SysV init scripts and rcN.d links support");
-#endif
- }
-
- return 0;
-}
-
-void lookup_paths_free(LookupPaths *p) {
- assert(p);
-
- strv_free(p->unit_path);
- p->unit_path = NULL;
-
-#ifdef HAVE_SYSV_COMPAT
- strv_free(p->sysvinit_path);
- strv_free(p->sysvrcnd_path);
- p->sysvinit_path = p->sysvrcnd_path = NULL;
-#endif
-}
~ianmdlvl / elogind.git / blobdiff