#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
#include <unistd.h>
#include <errno.h>
int user_config_home(char **config_home) {
const char *e;
+ char *r;
e = getenv("XDG_CONFIG_HOME");
if (e) {
- if (asprintf(config_home, "%s/systemd/user", e) < 0)
+ r = strappend(e, "/systemd/user");
+ if (!r)
return -ENOMEM;
+ *config_home = r;
return 1;
} else {
const char *home;
home = getenv("HOME");
if (home) {
- if (asprintf(config_home, "%s/.config/systemd/user", home) < 0)
+ r = strappend(home, "/.config/systemd/user");
+ if (!r)
return -ENOMEM;
+ *config_home = r;
return 1;
}
}
return 0;
}
+int user_runtime_dir(char **runtime_dir) {
+ const char *e;
+ char *r;
+
+ e = getenv("XDG_RUNTIME_DIR");
+ if (e) {
+ r = strappend(e, "/systemd/user");
+ if (!r)
+ return -ENOMEM;
+
+ *runtime_dir = r;
+ return 1;
+ }
+
+ return 0;
+}
+
+static int user_data_home_dir(char **dir, const char *suffix) {
+ const char *e;
+ char *res;
+
+ /* We don't treat /etc/xdg/systemd here as the spec
+ * suggests because we assume that that is a link to
+ * /etc/systemd/ anyway. */
+
+ e = getenv("XDG_DATA_HOME");
+ if (e)
+ res = strappend(e, suffix);
+ else {
+ const char *home;
+
+ home = getenv("HOME");
+ if (home)
+ res = strjoin(home, "/.local/share", suffix, NULL);
+ else
+ return 0;
+ }
+ if (!res)
+ return -ENOMEM;
+
+ *dir = res;
+ return 0;
+}
+
static char** user_dirs(
const char *generator,
const char *generator_early,
const char * const config_unit_paths[] = {
USER_CONFIG_UNIT_PATH,
"/etc/systemd/user",
- "/run/systemd/user",
NULL
};
+ const char * const runtime_unit_path = "/run/systemd/user";
+
const char * const data_unit_paths[] = {
"/usr/local/lib/systemd/user",
"/usr/local/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;
+ const char *e;
+ _cleanup_free_ char *config_home = NULL, *runtime_dir = NULL, *data_home = NULL;
+ _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
+ _cleanup_free_ char **res = NULL;
+ char **tmp;
+ int r;
/* Implement the mechanisms defined in
*
*/
if (user_config_home(&config_home) < 0)
- goto fail;
+ return NULL;
- home = getenv("HOME");
+ if (user_runtime_dir(&runtime_dir) < 0)
+ return NULL;
e = getenv("XDG_CONFIG_DIRS");
if (e) {
config_dirs = strv_split(e, ":");
if (!config_dirs)
- goto fail;
+ return NULL;
}
- /* We don't treat /etc/xdg/systemd here as the spec
- * suggests because we assume that that is a link to
- * /etc/systemd/ anyway. */
-
- e = getenv("XDG_DATA_HOME");
- if (e) {
- 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_label(data_home, 0777);
- (void) symlink("../../../.config/systemd/user", data_home);
- }
+ r = user_data_home_dir(&data_home, "/systemd/user");
+ if (r < 0)
+ return NULL;
e = getenv("XDG_DATA_DIRS");
if (e)
"/usr/share",
NULL);
if (!data_dirs)
- goto fail;
+ return NULL;
/* Now merge everything we found. */
- if (generator_early) {
- t = strv_append(r, generator_early);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
- }
+ if (generator_early)
+ if (strv_extend(&res, generator_early) < 0)
+ return NULL;
- if (config_home) {
- t = strv_append(r, config_home);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
- }
+ if (config_home)
+ if (strv_extend(&res, config_home) < 0)
+ return NULL;
- if (!strv_isempty(config_dirs)) {
- t = strv_merge_concat(r, config_dirs, "/systemd/user");
- if (!t)
- goto finish;
- strv_free(r);
- r = t;
- }
+ if (!strv_isempty(config_dirs))
+ if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
+ return NULL;
- t = strv_merge(r, (char**) config_unit_paths);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
+ if (strv_extend_strv(&res, (char**) config_unit_paths) < 0)
+ return NULL;
- if (generator) {
- t = strv_append(r, generator);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
- }
+ if (runtime_dir)
+ if (strv_extend(&res, runtime_dir) < 0)
+ return NULL;
- if (data_home) {
- t = strv_append(r, data_home);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
- }
+ if (strv_extend(&res, runtime_unit_path) < 0)
+ return NULL;
- if (!strv_isempty(data_dirs)) {
- t = strv_merge_concat(r, data_dirs, "/systemd/user");
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
- }
+ if (generator)
+ if (strv_extend(&res, generator) < 0)
+ return NULL;
- t = strv_merge(r, (char**) data_unit_paths);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
+ if (data_home)
+ if (strv_extend(&res, data_home) < 0)
+ return NULL;
- if (generator_late) {
- t = strv_append(r, generator_late);
- if (!t)
- goto fail;
- strv_free(r);
- r = t;
- }
+ if (!strv_isempty(data_dirs))
+ if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0)
+ return NULL;
- if (!path_strv_make_absolute_cwd(r))
- goto fail;
+ if (strv_extend_strv(&res, (char**) data_unit_paths) < 0)
+ return NULL;
-finish:
- free(config_home);
- strv_free(config_dirs);
- free(data_home);
- strv_free(data_dirs);
+ if (generator_late)
+ if (strv_extend(&res, generator_late) < 0)
+ return NULL;
- return r;
+ if (!path_strv_make_absolute_cwd(res))
+ return NULL;
-fail:
- strv_free(r);
- r = NULL;
- goto finish;
+ tmp = res;
+ res = NULL;
+ return tmp;
+}
+
+char **generator_paths(SystemdRunningAs running_as) {
+ if (running_as == SYSTEMD_USER)
+ return strv_new("/run/systemd/user-generators",
+ "/etc/systemd/user-generators",
+ "/usr/local/lib/systemd/user-generators",
+ USER_GENERATOR_PATH,
+ NULL);
+ else
+ return strv_new("/run/systemd/system-generators",
+ "/etc/systemd/system-generators",
+ "/usr/local/lib/systemd/system-generators",
+ SYSTEM_GENERATOR_PATH,
+ NULL);
}
int lookup_paths_init(
LookupPaths *p,
- ManagerRunningAs running_as,
+ SystemdRunningAs running_as,
bool personal,
+ const char *root_dir,
const char *generator,
const char *generator_early,
const char *generator_late) {
const char *e;
- char *t;
+ bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */
assert(p);
* vars */
e = getenv("SYSTEMD_UNIT_PATH");
if (e) {
+ if (endswith(e, ":")) {
+ e = strndupa(e, strlen(e) - 1);
+ append = true;
+ }
+
+ /* FIXME: empty components in other places should be
+ * rejected. */
+
p->unit_path = path_split_and_make_absolute(e);
if (!p->unit_path)
return -ENOMEM;
} else
p->unit_path = NULL;
- if (strv_isempty(p->unit_path)) {
- /* Nothing is set, so let's figure something out. */
- strv_free(p->unit_path);
+ if (!p->unit_path || append) {
+ /* Let's figure something out. */
- /* For the user units we include share/ in the search
- * path in order to comply with the XDG basedir
- * spec. For the system stuff we avoid such
- * nonsense. OTOH we include /lib in the search path
- * for the system stuff but avoid it for user
- * stuff. */
+ _cleanup_strv_free_ char **unit_path;
+ int r;
- if (running_as == MANAGER_USER) {
+ /* For the user units we include share/ in the search
+ * path in order to comply with the XDG basedir spec.
+ * For the system stuff we avoid such nonsense. OTOH
+ * we include /lib in the search path for the system
+ * stuff but avoid it for user stuff. */
+ if (running_as == SYSTEMD_USER) {
if (personal)
- p->unit_path = user_dirs(generator, generator_early, generator_late);
+ unit_path = user_dirs(generator, generator_early, generator_late);
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! */
- STRV_IFNOTNULL(generator_early),
- USER_CONFIG_UNIT_PATH,
- "/etc/systemd/user",
- "/run/systemd/user",
- STRV_IFNOTNULL(generator),
- "/usr/local/lib/systemd/user",
- "/usr/local/share/systemd/user",
- USER_DATA_UNIT_PATH,
- "/usr/lib/systemd/user",
- "/usr/share/systemd/user",
- STRV_IFNOTNULL(generator_late),
- NULL);
-
- if (!p->unit_path)
- return -ENOMEM;
-
- } else {
- p->unit_path = strv_new(
+ unit_path = strv_new(
/* If you modify this you also want to modify
- * systemdsystemunitpath= in systemd.pc.in! */
+ * systemduserunitpath= in systemd.pc.in, and
+ * the arrays in user_dirs() above! */
STRV_IFNOTNULL(generator_early),
- SYSTEM_CONFIG_UNIT_PATH,
- "/etc/systemd/system",
- "/run/systemd/system",
+ USER_CONFIG_UNIT_PATH,
+ "/etc/systemd/user",
+ "/run/systemd/user",
STRV_IFNOTNULL(generator),
- "/usr/local/lib/systemd/system",
- SYSTEM_DATA_UNIT_PATH,
- "/usr/lib/systemd/system",
-#ifdef HAVE_SPLIT_USR
- "/lib/systemd/system",
-#endif
+ "/usr/local/lib/systemd/user",
+ "/usr/local/share/systemd/user",
+ USER_DATA_UNIT_PATH,
+ "/usr/lib/systemd/user",
+ "/usr/share/systemd/user",
STRV_IFNOTNULL(generator_late),
NULL);
+ } else
+ unit_path = strv_new(
+ /* If you modify this you also want to modify
+ * systemdsystemunitpath= in systemd.pc.in! */
+ STRV_IFNOTNULL(generator_early),
+ SYSTEM_CONFIG_UNIT_PATH,
+ "/etc/systemd/system",
+ "/run/systemd/system",
+ STRV_IFNOTNULL(generator),
+ "/usr/local/lib/systemd/system",
+ SYSTEM_DATA_UNIT_PATH,
+ "/usr/lib/systemd/system",
+#ifdef HAVE_SPLIT_USR
+ "/lib/systemd/system",
+#endif
+ STRV_IFNOTNULL(generator_late),
+ NULL);
- if (!p->unit_path)
- return -ENOMEM;
- }
+ if (!unit_path)
+ return -ENOMEM;
+
+ r = strv_extend_strv(&p->unit_path, unit_path);
+ if (r < 0)
+ return r;
}
- if (!path_strv_canonicalize(p->unit_path))
+ if (!path_strv_resolve_uniq(p->unit_path, root_dir))
return -ENOMEM;
- strv_uniq(p->unit_path);
- path_strv_remove_empty(p->unit_path);
-
if (!strv_isempty(p->unit_path)) {
-
- t = strv_join(p->unit_path, "\n\t");
+ _cleanup_free_ char *t = strv_join(p->unit_path, "\n\t");
if (!t)
return -ENOMEM;
- log_debug("Looking for unit files in:\n\t%s", t);
- free(t);
+ log_debug("Looking for unit files in (higher priority first):\n\t%s", t);
} else {
log_debug("Ignoring unit files.");
strv_free(p->unit_path);
p->unit_path = NULL;
}
- if (running_as == MANAGER_SYSTEM) {
+ if (running_as == SYSTEMD_SYSTEM) {
#ifdef HAVE_SYSV_COMPAT
/* /etc/init.d/ compatibility does not matter to users */
return -ENOMEM;
}
- if (!path_strv_canonicalize(p->sysvinit_path))
+ if (!path_strv_resolve_uniq(p->sysvinit_path, root_dir))
return -ENOMEM;
- if (!path_strv_canonicalize(p->sysvrcnd_path))
+ if (!path_strv_resolve_uniq(p->sysvrcnd_path, root_dir))
return -ENOMEM;
- strv_uniq(p->sysvinit_path);
- strv_uniq(p->sysvrcnd_path);
- path_strv_remove_empty(p->sysvinit_path);
- path_strv_remove_empty(p->sysvrcnd_path);
-
if (!strv_isempty(p->sysvinit_path)) {
-
- t = strv_join(p->sysvinit_path, "\n\t");
+ _cleanup_free_ char *t = strv_join(p->sysvinit_path, "\n\t");
if (!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);
}
if (!strv_isempty(p->sysvrcnd_path)) {
-
- t = strv_join(p->sysvrcnd_path, "\n\t");
+ _cleanup_free_ char *t =
+ strv_join(p->sysvrcnd_path, "\n\t");
if (!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");
+ log_debug("SysV init scripts and rcN.d links support disabled");
#endif
}
p->sysvinit_path = p->sysvrcnd_path = NULL;
#endif
}
+
+int lookup_paths_init_from_scope(LookupPaths *paths,
+ UnitFileScope scope,
+ const char *root_dir) {
+ assert(paths);
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ zero(*paths);
+
+ return lookup_paths_init(paths,
+ scope == UNIT_FILE_SYSTEM ? SYSTEMD_SYSTEM : SYSTEMD_USER,
+ scope == UNIT_FILE_USER,
+ root_dir,
+ NULL, NULL, NULL);
+}
~ianmdlvl / elogind.git / blobdiff