usleep.c 593 B

12345678910111213141516171819202122232425262728
  1. /* vi: set sw=4 ts=4: */
  2. /*
  3. * usleep implementation for busybox
  4. *
  5. * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
  6. *
  7. * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  8. */
  9. /* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */
  10. #include "libbb.h"
  11. /* This is a NOFORK applet. Be very careful! */
  12. int usleep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  13. int usleep_main(int argc UNUSED_PARAM, char **argv)
  14. {
  15. if (!argv[1]) {
  16. bb_show_usage();
  17. }
  18. if (usleep(xatou(argv[1]))) {
  19. bb_perror_nomsg_and_die();
  20. }
  21. return EXIT_SUCCESS;
  22. }