sd-login,test-login: return -ENODATA from sd_pid_get_unit too

After all, we might be running on a non-systemd system.

diff --git a/src/libsystemd/sd-login/sd-login.c b/src/libsystemd/sd-login/sd-login.c
index cd844b3..82a94bf 100644 (file)
--- a/src/libsystemd/sd-login/sd-login.c
+++ b/src/libsystemd/sd-login/sd-login.c
@@ -66,11 +66,13 @@ _public_ int sd_pid_get_session(pid_t pid, char **session) {
 }
 
 _public_ int sd_pid_get_unit(pid_t pid, char **unit) {
+        int r;
 
         assert_return(pid >= 0, -EINVAL);
         assert_return(unit, -EINVAL);
 
-        return cg_pid_get_unit(pid, unit);
+        r = cg_pid_get_unit(pid, unit);
+        return r == -ENXIO ? -ENODATA : r;
 }
 
 _public_ int sd_pid_get_user_unit(pid_t pid, char **unit) {

diff --git a/src/libsystemd/sd-login/test-login.c b/src/libsystemd/sd-login/test-login.c
index fb7d4e2..6889d2f 100644 (file)
--- a/src/libsystemd/sd-login/test-login.c
+++ b/src/libsystemd/sd-login/test-login.c
@@ -59,7 +59,8 @@ static void test_login(void) {
         uid_t u, u2;
         char *t, **seats, **sessions;
 
-        assert_se(sd_pid_get_unit(0, &unit) >= 0);
+        r = sd_pid_get_unit(0, &unit);
+        assert_se(r >= 0 || r == -ENODATA);
         log_info("sd_pid_get_unit(0, …) → \"%s\"", unit);
 
         r = sd_pid_get_user_unit(0, &user_unit);