+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2013 Zbigniew Jędrzejewski-Szmek
-
- 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 <errno.h>
#include <string.h>
#include <unistd.h>
-#include "formats-util.h"
+#include "format-util.h"
#include "install-printf.h"
#include "install.h"
#include "macro.h"
#include "specifier.h"
+#include "string-util.h"
#include "unit-name.h"
#include "user-util.h"
static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) {
- UnitFileInstallInfo *i = userdata;
+ const UnitFileInstallInfo *i = userdata;
+ _cleanup_free_ char *prefix = NULL;
+ int r;
assert(i);
- return unit_name_to_prefix_and_instance(i->name, ret);
+ r = unit_name_to_prefix_and_instance(i->name, &prefix);
+ if (r < 0)
+ return r;
+
+ if (endswith(prefix, "@") && i->default_instance) {
+ char *ans;
+
+ ans = strjoin(prefix, i->default_instance);
+ if (!ans)
+ return -ENOMEM;
+ *ret = ans;
+ } else
+ *ret = TAKE_PTR(prefix);
+
+ return 0;
+}
+
+static int specifier_name(char specifier, void *data, void *userdata, char **ret) {
+ const UnitFileInstallInfo *i = userdata;
+ char *ans;
+
+ assert(i);
+
+ if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE) && i->default_instance)
+ return unit_name_replace_instance(i->name, i->default_instance, ret);
+
+ ans = strdup(i->name);
+ if (!ans)
+ return -ENOMEM;
+ *ret = ans;
+ return 0;
}
static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) {
- UnitFileInstallInfo *i = userdata;
+ const UnitFileInstallInfo *i = userdata;
assert(i);
}
static int specifier_instance(char specifier, void *data, void *userdata, char **ret) {
- UnitFileInstallInfo *i = userdata;
+ const UnitFileInstallInfo *i = userdata;
char *instance;
int r;
if (r < 0)
return r;
- if (!instance) {
- instance = strdup("");
- if (!instance)
- return -ENOMEM;
+ if (isempty(instance)) {
+ r = free_and_strdup(&instance, strempty(i->default_instance));
+ if (r < 0)
+ return r;
}
*ret = instance;
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;
-}
-
int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret) {
/* This is similar to unit_full_printf() but does not support
*/
const Specifier table[] = {
- { 'n', specifier_string, i->name },
+ { 'n', specifier_name, NULL },
{ 'N', specifier_prefix_and_instance, NULL },
{ 'p', specifier_prefix, NULL },
{ 'i', specifier_instance, NULL },