disable the cgroups release agent when shutting down

[elogind.git] / src / shared / path-util.c

diff --git a/src/shared/path-util.c b/src/shared/path-util.c
index 0b50ea646aa984a3a1a64b15946f438ac17527e1..0c1b6a0ab04240c672431035ad28ff551899b608 100644 (file)
--- a/src/shared/path-util.c
+++ b/src/shared/path-util.c
@@ -50,7 +50,8 @@ char *path_get_file_name(const char *p) {
 
         assert(p);
 
-        if ((r = strrchr(p, '/')))
+        r = strrchr(p, '/');
+        if (r)
                 return r + 1;
 
         return (char*) p;
@@ -413,3 +414,15 @@ int path_is_read_only_fs(const char *path) {
 
         return !!(st.f_flag & ST_RDONLY);
 }
+
+int path_is_os_tree(const char *path) {
+        char *p;
+        int r;
+
+        /* We use /etc/os-release as flag file if something is an OS */
+
+        p = strappenda(path, "/etc/os-release");
+        r = access(p, F_OK);
+
+        return r < 0 ? 0 : 1;
+}