coreutils/true.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Mini true implementation for busybox
   4  *
   5  * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
   6  *
   7  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   8  */
   9 //config:config TRUE
  10 //config:       bool "true (311 bytes)"
  11 //config:       default y
  12 //config:       help
  13 //config:       true returns an exit code of TRUE (0).
  14
  15 //applet:IF_TRUE(APPLET_NOFORK(true, true, BB_DIR_BIN, BB_SUID_DROP, true))
  16
  17 //kbuild:lib-$(CONFIG_TRUE) += true.o
  18
  19 /* BB_AUDIT SUSv3 compliant */
  20 /* http://www.opengroup.org/onlinepubs/007904975/utilities/true.html */
  21
  22 /* "true --help" is special-cased to ignore --help */
  23 //usage:#define true_trivial_usage NOUSAGE_STR
  24 //usage:#define true_full_usage ""
  25 //usage:#define true_example_usage
  26 //usage:       "$ true\n"
  27 //usage:       "$ echo $?\n"
  28 //usage:       "0\n"
  29
  30 #include "libbb.h"
  31
  32 /* This is a NOFORK applet. Be very careful! */
  33
  34 int true_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  35 int true_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
  36 {
  37         return EXIT_SUCCESS;
  38 }