/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- 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 "alloc-util.h"
#include "cgroup-util.h"
#include "unit.h"
#include "user-util.h"
-static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_prefix_and_instance(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
assert(u);
return unit_name_to_prefix_and_instance(u->id, ret);
}
-static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_prefix(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
assert(u);
return unit_name_to_prefix(u->id, ret);
}
-static int specifier_prefix_unescaped(char specifier, void *data, void *userdata, char **ret) {
+static int specifier_prefix_unescaped(char specifier, const void *data, const void *userdata, char **ret) {
_cleanup_free_ char *p = NULL;
- Unit *u = userdata;
+ const Unit *u = userdata;
int r;
assert(u);
return unit_name_unescape(p, ret);
}
-static int specifier_instance_unescaped(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_instance_unescaped(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
assert(u);
return unit_name_unescape(strempty(u->instance), ret);
}
-static int specifier_filename(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_last_component(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
+ _cleanup_free_ char *prefix = NULL;
+ char *dash;
+ int r;
+
+ assert(u);
+
+ r = unit_name_to_prefix(u->id, &prefix);
+ if (r < 0)
+ return r;
+
+ dash = strrchr(prefix, '-');
+ if (dash)
+ return specifier_string(specifier, dash + 1, userdata, ret);
+
+ *ret = TAKE_PTR(prefix);
+ return 0;
+}
+
+static int specifier_last_component_unescaped(char specifier, const void *data, const void *userdata, char **ret) {
+ _cleanup_free_ char *p = NULL;
+ int r;
+
+ r = specifier_last_component(specifier, data, userdata, &p);
+ if (r < 0)
+ return r;
+
+ return unit_name_unescape(p, ret);
+}
+
+static int specifier_filename(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
assert(u);
return unit_name_to_path(u->id, ret);
}
-static void bad_specifier(Unit *u, char specifier) {
+static void bad_specifier(const Unit *u, char specifier) {
log_unit_warning(u, "Specifier '%%%c' used in unit configuration, which is deprecated. Please update your unit file, as it does not work as intended.", specifier);
}
-static int specifier_cgroup(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_cgroup(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
char *n;
assert(u);
return 0;
}
-static int specifier_cgroup_root(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_cgroup_root(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
char *n;
assert(u);
return 0;
}
-static int specifier_cgroup_slice(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_cgroup_slice(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
char *n;
assert(u);
bad_specifier(u, specifier);
if (UNIT_ISSET(u->slice)) {
- Unit *slice;
+ const Unit *slice;
slice = UNIT_DEREF(u->slice);
return 0;
}
-static int specifier_special_directory(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
+static int specifier_special_directory(char specifier, const void *data, const void *userdata, char **ret) {
+ const Unit *u = userdata;
char *n = NULL;
assert(u);
return 0;
}
-static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
- char *t;
-
- /* If we are UID 0 (root), this will not result in NSS,
- * otherwise it might. This is good, as we want to be able to
- * run this in PID 1, where our user ID is 0, but where NSS
- * lookups are not allowed. */
-
- t = getusername_malloc();
- if (!t)
- return -ENOMEM;
-
- *ret = t;
- return 0;
-}
-
-static int specifier_user_id(char specifier, void *data, void *userdata, char **ret) {
-
- if (asprintf(ret, UID_FMT, getuid()) < 0)
- return -ENOMEM;
-
- return 0;
-}
-
-static int specifier_user_home(char specifier, void *data, void *userdata, char **ret) {
-
- /* On PID 1 (which runs as root) this will not result in NSS,
- * which is good. See above */
-
- return get_home_dir(ret);
-}
-
-static int specifier_user_shell(char specifier, void *data, void *userdata, char **ret) {
-
- /* On PID 1 (which runs as root) this will not result in NSS,
- * which is good. See above */
-
- return get_shell(ret);
-}
-
-int unit_name_printf(Unit *u, const char* format, char **ret) {
+int unit_name_printf(const Unit *u, const char* format, char **ret) {
/*
* This will use the passed string as format string and replace the following specifiers (which should all be
* %u: the username of the running user
*
* %m: the machine ID of the running system
- * %H: the host name of the running system
+ * %H: the hostname of the running system
* %b: the boot ID of the running system
*/
{ 'N', specifier_prefix_and_instance, NULL },
{ 'p', specifier_prefix, NULL },
{ 'i', specifier_string, u->instance },
+ { 'j', specifier_last_component, NULL },
+ { 'g', specifier_group_name, NULL },
+ { 'G', specifier_group_id, NULL },
{ 'U', specifier_user_id, NULL },
{ 'u', specifier_user_name, NULL },
return specifier_printf(format, table, u, ret);
}
-int unit_full_printf(Unit *u, const char *format, char **ret) {
-
+int unit_full_printf(const Unit *u, const char *format, char **ret) {
/* This is similar to unit_name_printf() but also supports unescaping. Also, adds a couple of additional codes
* (which are likely not suitable for unescaped inclusion in unit names):
*
* %S: the state directory root (e.g. /var/lib or $XDG_CONFIG_HOME)
* %C: the cache directory root (e.g. /var/cache or $XDG_CACHE_HOME)
* %L: the log directory root (e.g. /var/log or $XDG_CONFIG_HOME/log)
+ * %E: the configuration directory root (e.g. /etc or $XDG_CONFIG_HOME)
+ * %T: the temporary directory (e.g. /tmp, or $TMPDIR, $TEMP, $TMP)
+ * %V: the temporary directory for large, persistent stuff (e.g. /var/tmp, or $TMPDIR, $TEMP, $TMP)
*
* %h: the homedir of the running user
* %s: the shell of the running user
* before or after the relevant configuration setting. Hence: don't add them.
*/
- const Specifier table[] = {
- { 'n', specifier_string, u->id },
- { 'N', specifier_prefix_and_instance, NULL },
- { 'p', specifier_prefix, NULL },
- { 'P', specifier_prefix_unescaped, NULL },
- { 'i', specifier_string, u->instance },
- { 'I', specifier_instance_unescaped, NULL },
-
- { 'f', specifier_filename, NULL },
- { 'c', specifier_cgroup, NULL },
- { 'r', specifier_cgroup_slice, NULL },
- { 'R', specifier_cgroup_root, NULL },
- { 't', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_RUNTIME) },
- { 'S', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_STATE) },
- { 'C', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_CACHE) },
- { 'L', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_LOGS) },
-
- { 'U', specifier_user_id, NULL },
- { 'u', specifier_user_name, NULL },
- { 'h', specifier_user_home, NULL },
- { 's', specifier_user_shell, NULL },
-
- { 'm', specifier_machine_id, NULL },
- { 'H', specifier_host_name, NULL },
- { 'b', specifier_boot_id, NULL },
- { 'v', specifier_kernel_release, NULL },
- {}
- };
-
assert(u);
assert(format);
assert(ret);
- return specifier_printf(format, table, u, ret);
-}
-
-int unit_full_printf_strv(Unit *u, char **l, char ***ret) {
- size_t n;
- char **r, **i, **j;
- int q;
-
- /* Applies unit_full_printf to every entry in l */
-
- assert(u);
-
- n = strv_length(l);
- r = new(char*, n+1);
- if (!r)
- return -ENOMEM;
-
- for (i = l, j = r; *i; i++, j++) {
- q = unit_full_printf(u, *i, j);
- if (q < 0)
- goto fail;
- }
-
- *j = NULL;
- *ret = r;
- return 0;
-
-fail:
- for (j--; j >= r; j--)
- free(*j);
+ const Specifier table[] = {
+ { 'n', specifier_string, u->id },
+ { 'N', specifier_prefix_and_instance, NULL },
+ { 'p', specifier_prefix, NULL },
+ { 'P', specifier_prefix_unescaped, NULL },
+ { 'i', specifier_string, u->instance },
+ { 'I', specifier_instance_unescaped, NULL },
+ { 'j', specifier_last_component, NULL },
+ { 'J', specifier_last_component_unescaped, NULL },
+
+ { 'f', specifier_filename, NULL },
+ { 'c', specifier_cgroup, NULL },
+ { 'r', specifier_cgroup_slice, NULL },
+ { 'R', specifier_cgroup_root, NULL },
+
+ { 't', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_RUNTIME) },
+ { 'S', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_STATE) },
+ { 'C', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_CACHE) },
+ { 'L', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_LOGS) },
+ { 'E', specifier_special_directory, UINT_TO_PTR(EXEC_DIRECTORY_CONFIGURATION) },
+ { 'T', specifier_tmp_dir, NULL },
+ { 'V', specifier_var_tmp_dir, NULL },
+
+ { 'g', specifier_group_name, NULL },
+ { 'G', specifier_group_id, NULL },
+ { 'U', specifier_user_id, NULL },
+ { 'u', specifier_user_name, NULL },
+ { 'h', specifier_user_home, NULL },
+ { 's', specifier_user_shell, NULL },
+
+ { 'm', specifier_machine_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'b', specifier_boot_id, NULL },
+ { 'v', specifier_kernel_release, NULL },
+ {}
+ };
- free(r);
- return q;
+ return specifier_printf(format, table, u, ret);
}
projects / thirdparty / systemd.git / blobdiff