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+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+/***
+ 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/>.
+***/
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mount.h>
+
+#include "namespace.h"
+#include "log.h"
+
+int main(int argc, char *argv[]) {
+ const char * const writable[] = {
+ "/home",
+ NULL
+ };
+
+ const char * const readable[] = {
+ "/var",
+ NULL
+ };
+
+ const char * const inaccessible[] = {
+ "/home/lennart/projects",
+ NULL
+ };
+
+ int r;
+
+ if ((r = setup_namespace((char**) writable, (char**) readable, (char**) inaccessible, true, MS_SHARED)) < 0) {
+ log_error("Failed to setup namespace: %s", strerror(-r));
+ return 1;
+ }
+
+ execl("/bin/sh", "/bin/sh", NULL);
+ log_error("execl(): %m");
+
+ return 1;
+}