mirror of
https://github.com/systemd/systemd.git
synced 2024-11-15 07:24:00 +03:00
133 lines
4.0 KiB
C
133 lines
4.0 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
/***
|
|
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 <assert.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "specifier.h"
|
|
#include "unit-name.h"
|
|
#include "util.h"
|
|
#include "install-printf.h"
|
|
|
|
static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) {
|
|
InstallInfo *i = userdata;
|
|
assert(i);
|
|
|
|
return unit_name_to_prefix_and_instance(i->name);
|
|
}
|
|
|
|
static char *specifier_prefix(char specifier, void *data, void *userdata) {
|
|
InstallInfo *i = userdata;
|
|
assert(i);
|
|
|
|
return unit_name_to_prefix(i->name);
|
|
}
|
|
|
|
static char *specifier_instance(char specifier, void *data, void *userdata) {
|
|
InstallInfo *i = userdata;
|
|
char *instance;
|
|
int r;
|
|
|
|
assert(i);
|
|
|
|
r = unit_name_to_instance(i->name, &instance);
|
|
if (r < 0)
|
|
return NULL;
|
|
if (instance != NULL)
|
|
return instance;
|
|
else
|
|
return strdup("");
|
|
}
|
|
|
|
static char *specifier_user_name(char specifier, void *data, void *userdata) {
|
|
InstallInfo *i = userdata;
|
|
const char *username;
|
|
_cleanup_free_ char *tmp = NULL;
|
|
char *printed = NULL;
|
|
|
|
assert(i);
|
|
|
|
if (i->user)
|
|
username = i->user;
|
|
else
|
|
/* get USER env from env or our own uid */
|
|
username = tmp = getusername_malloc();
|
|
|
|
switch (specifier) {
|
|
case 'u':
|
|
printed = strdup(username);
|
|
break;
|
|
case 'U': {
|
|
/* fish username from passwd */
|
|
uid_t uid;
|
|
int r;
|
|
|
|
r = get_user_creds(&username, &uid, NULL, NULL, NULL);
|
|
if (r < 0)
|
|
return NULL;
|
|
|
|
if (asprintf(&printed, "%d", uid) < 0)
|
|
return NULL;
|
|
break;
|
|
}}
|
|
|
|
return printed;
|
|
}
|
|
|
|
|
|
char *install_full_printf(InstallInfo *i, const char *format) {
|
|
|
|
/* This is similar to unit_full_printf() but does not support
|
|
* anything path-related.
|
|
*
|
|
* %n: the full id of the unit (foo@bar.waldo)
|
|
* %N: the id of the unit without the suffix (foo@bar)
|
|
* %p: the prefix (foo)
|
|
* %i: the instance (bar)
|
|
|
|
* %U the UID of the configured user or running user
|
|
* %u the username of the configured user or running user
|
|
* %m the machine ID of the running system
|
|
* %H the host name of the running system
|
|
* %b the boot ID of the running system
|
|
*/
|
|
|
|
const Specifier table[] = {
|
|
{ 'n', specifier_string, i->name },
|
|
{ 'N', specifier_prefix_and_instance, NULL },
|
|
{ 'p', specifier_prefix, NULL },
|
|
{ 'i', specifier_instance, NULL },
|
|
|
|
{ 'U', specifier_user_name, NULL },
|
|
{ 'u', specifier_user_name, NULL },
|
|
|
|
{ 'm', specifier_machine_id, NULL },
|
|
{ 'H', specifier_host_name, NULL },
|
|
{ 'b', specifier_boot_id, NULL },
|
|
{ 0, NULL, NULL }
|
|
};
|
|
|
|
assert(i);
|
|
assert(format);
|
|
|
|
return specifier_printf(format, table, i);
|
|
}
|