path-lookup: unconditionally check /usr and /usr/share unit directories

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

diff --git a/src/sd-daemon.c b/src/sd-daemon.c
index 0dad73f94d6064e39bad7b84cadf3dea8b3f8b57..cb568b5e65194a08ea088d8bf03e60f7c1095220 100644 (file)
--- a/src/sd-daemon.c
+++ b/src/sd-daemon.c
@@ -344,10 +344,8 @@ int sd_notify(int unset_environment, const char *state) {
                 goto finish;
         }
 
-        if (!(e = getenv("NOTIFY_SOCKET"))) {
-                r = 0;
-                goto finish;
-        }
+        if (!(e = getenv("NOTIFY_SOCKET")))
+                return 0;
 
         /* Must be an abstract socket, or an absolute path */
         if ((e[0] != '@' && e[0] != '/') || e[1] == 0) {
@@ -394,7 +392,7 @@ int sd_notify(int unset_environment, const char *state) {
                 goto finish;
         }
 
-        r = 0;
+        r = 1;
 
 finish:
         if (unset_environment)
@@ -428,3 +426,23 @@ int sd_notifyf(int unset_environment, const char *format, ...) {
         return r;
 #endif
 }
+
+int sd_booted(void) {
+#if defined(DISABLE_SYSTEMD) || !defined(__linux__)
+        return 0;
+#else
+
+        struct stat a, b;
+
+        /* We simply test whether the systemd cgroup hierarchy is
+         * mounted */
+
+        if (lstat("/cgroup", &a) < 0)
+                return 0;
+
+        if (lstat("/cgroup/systemd", &b) < 0)
+                return 0;
+
+        return a.st_dev != b.st_dev;
+#endif
+}