*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
#include "libbb.h"
-int chroot_main(int argc, char **argv);
-int chroot_main(int argc, char **argv)
+int chroot_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int chroot_main(int argc UNUSED_PARAM, char **argv)
{
- if (argc < 2) {
- bb_show_usage();
- }
-
++argv;
- if (chroot(*argv)) {
- bb_perror_msg_and_die("cannot change root directory to %s", *argv);
- }
+ if (!*argv)
+ bb_show_usage();
+ xchroot(*argv);
xchdir("/");
++argv;
- if (argc == 2) {
+ if (!*argv) { /* no 2nd param (PROG), use shell */
argv -= 2;
argv[0] = getenv("SHELL");
if (!argv[0]) {
argv[1] = (char *) "-i";
}
- BB_EXECVP(*argv, argv);
- bb_perror_msg_and_die("cannot execute %s", *argv);
+ BB_EXECVP_or_die(argv);
}