From: Martin Pitt <martinpitt@gnome.org>
Date: Thu, 21 Mar 2013 08:37:48 +0000 (+0100)
Subject: Update sd-daemon.[hc] from upstream
X-Git-Tag: dbus-1.7.2~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=751f6783c4e185b05765e7217c782dcb6f0df3e9;p=thirdparty%2Fdbus.git

Update sd-daemon.[hc] from upstream

This fixes sd_booted() to actually mean "have systemd init", which we need for
_dbus_init_system_log() to decide whether systemd journal is being used.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=62585
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
---

diff --git a/dbus/sd-daemon.c b/dbus/sd-daemon.c
index 80aadf7ad..79d8ca370 100644
--- a/dbus/sd-daemon.c
+++ b/dbus/sd-daemon.c
@@ -25,7 +25,7 @@
 ***/
 
 #ifndef _GNU_SOURCE
-#define _GNU_SOURCE
+#  define _GNU_SOURCE
 #endif
 
 #include <sys/types.h>
@@ -33,9 +33,9 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 #ifdef __BIONIC__
-#include <linux/fcntl.h>
+#  include <linux/fcntl.h>
 #else
-#include <sys/fcntl.h>
+#  include <sys/fcntl.h>
 #endif
 #include <netinet/in.h>
 #include <stdlib.h>
@@ -48,21 +48,21 @@
 #include <limits.h>
 
 #if defined(__linux__)
-#include <mqueue.h>
+#  include <mqueue.h>
 #endif
 
 #include "sd-daemon.h"
 
 #if (__GNUC__ >= 4)
-#ifdef SD_EXPORT_SYMBOLS
+#  ifdef SD_EXPORT_SYMBOLS
 /* Export symbols */
-#define _sd_export_ __attribute__ ((visibility("default")))
-#else
+#    define _sd_export_ __attribute__ ((visibility("default")))
+#  else
 /* Don't export the symbols */
-#define _sd_export_ __attribute__ ((visibility("hidden")))
-#endif
+#    define _sd_export_ __attribute__ ((visibility("hidden")))
+#  endif
 #else
-#define _sd_export_
+#  define _sd_export_
 #endif
 
 _sd_export_ int sd_listen_fds(int unset_environment) {
@@ -519,18 +519,15 @@ _sd_export_ int sd_booted(void) {
 #if defined(DISABLE_SYSTEMD) || !defined(__linux__)
         return 0;
 #else
+        struct stat st;
 
-        struct stat a, b;
-
-        /* We simply test whether the systemd cgroup hierarchy is
-         * mounted */
-
-        if (lstat("/sys/fs/cgroup", &a) < 0)
-                return 0;
+        /* We test whether the runtime unit file directory has been
+         * created. This takes place in mount-setup.c, so is
+         * guaranteed to happen very early during boot. */
 
-        if (lstat("/sys/fs/cgroup/systemd", &b) < 0)
+        if (lstat("/run/systemd/system/", &st) < 0)
                 return 0;
 
-        return a.st_dev != b.st_dev;
+        return !!S_ISDIR(st.st_mode);
 #endif
 }