execute: support basic filesystem namespacing

1 files changed, 27 insertions, 0 deletions

diff --git a/missing.h b/missing.h
index 6f1e5998ec..a8b5e80b07 100644
--- a/missing.h
+++ b/missing.h
@@ -1,12 +1,39 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
 #ifndef foomissinghfoo
 #define foomissinghfoo
 
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
 /* Missing glibc definitions to access certain kernel APIs */
 
 #include <sys/resource.h>
+#include <sys/syscall.h>
 
 #ifndef RLIMIT_RTTIME
 #define RLIMIT_RTTIME 15
 #endif
 
+static inline int pivot_root(const char *new_root, const char *put_old) {
+        return syscall(SYS_pivot_root, new_root, put_old);
+}
+
+
 #endif