#include "util.h"
#include "install-printf.h"
-static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) {
+static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
+ char *n;
+
assert(i);
- return unit_name_to_prefix_and_instance(i->name);
+ n = unit_name_to_prefix_and_instance(i->name);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_prefix(char specifier, void *data, void *userdata) {
+static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
+ char *n;
+
assert(i);
- return unit_name_to_prefix(i->name);
+ n = unit_name_to_prefix(i->name);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_instance(char specifier, void *data, void *userdata) {
+static int specifier_instance(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
char *instance;
int r;
r = unit_name_to_instance(i->name, &instance);
if (r < 0)
- return NULL;
- if (instance != NULL)
- return instance;
- else
- return strdup("");
+ return r;
+
+ if (!instance) {
+ instance = strdup("");
+ if (!instance)
+ return -ENOMEM;
+ }
+
+ *ret = instance;
+ return 0;
}
-static char *specifier_user_name(char specifier, void *data, void *userdata) {
+static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
const char *username;
_cleanup_free_ char *tmp = NULL;
r = get_user_creds(&username, &uid, NULL, NULL, NULL);
if (r < 0)
- return NULL;
+ return r;
- if (asprintf(&printed, "%d", uid) < 0)
- return NULL;
+ if (asprintf(&printed, UID_FMT, uid) < 0)
+ return -ENOMEM;
break;
}}
- return printed;
+
+ *ret = printed;
+ return 0;
}
-char *install_full_printf(InstallInfo *i, const char *format) {
+int install_full_printf(InstallInfo *i, const char *format, char **ret) {
/* This is similar to unit_full_printf() but does not support
* anything path-related.
* %m the machine ID of the running system
* %H the host name of the running system
* %b the boot ID of the running system
+ * %v `uname -r` of the running system
*/
const Specifier table[] = {
{ 'm', specifier_machine_id, NULL },
{ 'H', specifier_host_name, NULL },
{ 'b', specifier_boot_id, NULL },
- { 0, NULL, NULL }
+ { 'v', specifier_kernel_release, NULL },
+ {}
};
assert(i);
assert(format);
+ assert(ret);
- return specifier_printf(format, table, i);
+ return specifier_printf(format, table, i, ret);
}