Add libguestfs-test-tool.

[libguestfs.git] / test-tool / helper.c

diff --git a/test-tool/helper.c b/test-tool/helper.c
new file mode 100644 (file)
index 0000000..3395f21
--- /dev/null
+++ b/test-tool/helper.c
@@ -0,0 +1,73 @@
+/* libguestfs-test-tool-helper
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* NB. This program is intended to run inside the appliance. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+char buffer[10 * 1024];
+
+int
+main (void)
+{
+  int fd;
+
+  fprintf (stderr, "This is the libguestfs-test-tool helper program.\n");
+
+  /* This should fail immediately if we're not in the appliance. */
+  if (mkdir ("/tmp", 0700) == -1) {
+    perror ("mkdir");
+    fprintf (stderr, "This program should not be run directly.  Use libguestfs-test-tool instead.\n");
+    exit (1);
+  }
+
+  if (geteuid () != 0) {
+    fprintf (stderr, "helper: This program doesn't appear to be running as root.\n");
+    exit (1);
+  }
+
+  if (mkdir ("/tmp/helper", 0700) == -1) {
+    perror ("/tmp/helper");
+    exit (1);
+  }
+
+  fd = open ("/tmp/helper/a", O_CREAT|O_EXCL|O_WRONLY, 0600);
+  if (fd == -1) {
+    perror ("create /tmp/helper/a");
+    exit (1);
+  }
+  if (write (fd, buffer, sizeof buffer) != sizeof buffer) {
+    perror ("write");
+    exit (1);
+  }
+  if (close (fd) == -1) {
+    perror ("close");
+    exit (1);
+  }
+
+  exit (0);
+}