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
  38 int dirname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  39 int dirname_main(int argc UNUSED_PARAM, char **argv)
  40 {
  41         puts(dirname(single_argv(argv)));
  42         return fflush_all();
  43 }