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view toys/other/chroot.c @ 1676:cbb1aca81eca draft

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Make toy_exec() check if argc is in optargs and deal with it there so we don't need a separate xexec_optargs().
author Rob Landley <rob@landley.net>
date Sat, 07 Feb 2015 16:17:44 -0600
parents 144d5ba7d410
children
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/* chroot.c - Run command in new root directory.
 *
 * Copyright 2007 Rob Landley <rob@landley.net>

USE_CHROOT(NEWTOY(chroot, "^<1", TOYFLAG_USR|TOYFLAG_SBIN))

config CHROOT
  bool "chroot"
  default y
  help
    usage: chroot NEWPATH [commandline...]

    Run command within a new root directory. If no command, run /bin/sh.
*/

#include "toys.h"

void chroot_main(void)
{
  char *binsh[] = {"/bin/sh", "-i", 0};

  if (chdir(*toys.optargs) || chroot(".")) perror_exit("%s", *toys.optargs);
  if (toys.optargs[1]) xexec(toys.optargs+1);
  else xexec(binsh);
}