LXR busybox/coreutils/dirname.c

   1/* vi: set sw=4 ts=4: */
   2/*
   3 * Mini dirname 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 DIRNAME
  10//config:       bool "dirname (289 bytes)"
  11//config:       default y
  12//config:       help
  13//config:       dirname is used to strip a non-directory suffix from
  14//config:       a file name.
  15
  16//applet:IF_DIRNAME(APPLET_NOFORK(dirname, dirname, BB_DIR_USR_BIN, BB_SUID_DROP, dirname))
  17
  18//kbuild:lib-$(CONFIG_DIRNAME) += dirname.o
  19
  20/* BB_AUDIT SUSv3 compliant */
  21/* http://www.opengroup.org/onlinepubs/007904975/utilities/dirname.html */
  22
  23//usage:#define dirname_trivial_usage
  24//usage:       "FILENAME"
  25//usage:#define dirname_full_usage "\n\n"
  26//usage:       "Strip non-directory suffix from FILENAME"
  27//usage:
  28//usage:#define dirname_example_usage
  29//usage:       "$ dirname /tmp/foo\n"
  30//usage:       "/tmp\n"
  31//usage:       "$ dirname /tmp/foo/\n"
  32//usage:       "/tmp\n"
  33
  34#include "libbb.h"
  35
  36/* This is a NOFORK applet. Be very careful! */
  37
  38int dirname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  39int dirname_main(int argc UNUSED_PARAM, char **argv)
  40{
  41        puts(dirname(single_argv(argv)));
  42        return fflush_all();
  43}
  44