diff options
Diffstat (limited to 'test-tool/helper.c')
-rw-r--r-- | test-tool/helper.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/test-tool/helper.c b/test-tool/helper.c new file mode 100644 index 00000000..3395f219 --- /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); +} |