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/* 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 (EXIT_FAILURE);
}
if (geteuid () != 0) {
fprintf (stderr, "helper: This program doesn't appear to be running as root.\n");
exit (EXIT_FAILURE);
}
if (mkdir ("/tmp/helper", 0700) == -1) {
perror ("/tmp/helper");
exit (EXIT_FAILURE);
}
fd = open ("/tmp/helper/a", O_CREAT|O_EXCL|O_WRONLY, 0600);
if (fd == -1) {
perror ("create /tmp/helper/a");
exit (EXIT_FAILURE);
}
if (write (fd, buffer, sizeof buffer) != sizeof buffer) {
perror ("write");
exit (EXIT_FAILURE);
}
if (close (fd) == -1) {
perror ("close");
exit (EXIT_FAILURE);
}
exit (EXIT_SUCCESS);
}
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