X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsd-daemon.c;h=cb568b5e65194a08ea088d8bf03e60f7c1095220;hp=e6b9a6f3c217ca2fff601929627ac4cb648c98f4;hb=40473a70cf5ac6743d9e4e70f3229203a278ff9c;hpb=f1c5860be7b89e784fbba1624127a843b62c7b98

diff --git a/src/sd-daemon.c b/src/sd-daemon.c
index e6b9a6f3c..cb568b5e6 100644
--- a/src/sd-daemon.c
+++ b/src/sd-daemon.c
@@ -426,3 +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
+}