<entry>User shell</entry>
<entry>This is the shell of the configured user of the unit, or (if none is set) the user running the systemd instance.</entry>
</row>
+ <row>
+ <entry><literal>%m</literal></entry>
+ <entry>Machine ID</entry>
+ <entry>The machine ID of the running system, formatted as string. See <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
+ </row>
+ <row>
+ <entry><literal>%b</literal></entry>
+ <entry>Boot ID</entry>
+ <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry>
+ </row>
+ <row>
+ <entry><literal>%H</literal></entry>
+ <entry>Host name</entry>
+ <entry>The host name of the running system.</entry>
+ </row>
</tbody>
</tgroup>
</table>
int r;
const char *username;
+ assert(u);
+
c = unit_get_exec_context(u);
if (!c)
return NULL;
int r;
const char *username, *home;
+ assert(u);
+
c = unit_get_exec_context(u);
if (!c)
return NULL;
int r;
const char *username, *shell;
+ assert(u);
+
c = unit_get_exec_context(u);
if (!c)
return NULL;
return strdup(shell);
}
+static char *specifier_machine_id(char specifier, void *data, void *userdata) {
+ sd_id128_t id;
+ char *buf;
+ int r;
+
+ r = sd_id128_get_machine(&id);
+ if (r < 0)
+ return NULL;
+
+ buf = new(char, 33);
+ if (!buf)
+ return NULL;
+
+ return sd_id128_to_string(id, buf);
+}
+
+static char *specifier_boot_id(char specifier, void *data, void *userdata) {
+ sd_id128_t id;
+ char *buf;
+ int r;
+
+ r = sd_id128_get_boot(&id);
+ if (r < 0)
+ return NULL;
+
+ buf = new(char, 33);
+ if (!buf)
+ return NULL;
+
+ return sd_id128_to_string(id, buf);
+}
+
+static char *specifier_host_name(char specifier, void *data, void *userdata) {
+ return gethostname_malloc();
+}
+
char *unit_name_printf(Unit *u, const char* format) {
/*
* %u the username of the configured user or running user
* %h the homedir of the configured user or running user
* %s the shell of the configured user or running user
+ * %m the machine ID of the running system
+ * %b the boot ID of the running system
+ * %H the host name of the running system
*/
const Specifier table[] = {
{ '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 },
{ 0, NULL, NULL }
};