journald: parse configuration file

[elogind.git] / src / login / sd-login.c

diff --git a/src/login/sd-login.c b/src/login/sd-login.c
index a0a56c49526ebdf2fb85a83137418b2e8c77d679..8893b1de80cfa4449850a9a08b7e424c6d334d2e 100644 (file)
--- a/src/login/sd-login.c
+++ b/src/login/sd-login.c
@@ -121,6 +121,33 @@ _public_ int sd_pid_get_session(pid_t pid, char **session) {
         return 0;
 }
 
+_public_ int sd_pid_get_unit(pid_t pid, char **unit) {
+        int r;
+        char *cgroup, *p;
+
+        if (!unit)
+                return -EINVAL;
+
+        r = pid_get_cgroup(pid, NULL, &cgroup);
+        if (r < 0)
+                return r;
+
+        if (!startswith(cgroup, "/system/")) {
+                free(cgroup);
+                return -ENOENT;
+        }
+
+        p = cgroup + 8;
+        p = strndup(p, strcspn(p, "/"));
+        free(cgroup);
+
+        if (!p)
+                return -ENOMEM;
+
+        *unit = p;
+        return 0;
+}
+
 _public_ int sd_pid_get_owner_uid(pid_t pid, uid_t *uid) {
         int r;
         char *root, *cgroup, *p, *cc;
@@ -547,7 +574,7 @@ _public_ int sd_seat_can_multi_session(const char *seat) {
                 return -ENOMEM;
 
         r = parse_env_file(p, NEWLINE,
-                           "IS_VTCONSOLE", &s,
+                           "CAN_MULTI_SESSION", &s,
                            NULL);
         free(p);