busybox/coreutils/dirname.c

/* vi: set sw=4 ts=4: */
/*
 * Mini dirname implementation for busybox
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
 */
//config:config DIRNAME
//config:	bool "dirname (289 bytes)"
//config:	default y
//config:	help
//config:	dirname is used to strip a non-directory suffix from
//config:	a file name.

//applet:IF_DIRNAME(APPLET_NOFORK(dirname, dirname, BB_DIR_USR_BIN, BB_SUID_DROP, dirname))

//kbuild:lib-$(CONFIG_DIRNAME) += dirname.o

/* BB_AUDIT SUSv3 compliant */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/dirname.html */

//usage:#define dirname_trivial_usage
//usage:       "FILENAME"
//usage:#define dirname_full_usage "\n\n"
//usage:       "Strip non-directory suffix from FILENAME"
//usage:
//usage:#define dirname_example_usage
//usage:       "$ dirname /tmp/foo\n"
//usage:       "/tmp\n"
//usage:       "$ dirname /tmp/foo/\n"
//usage:       "/tmp\n"

#include "libbb.h"

/* This is a NOFORK applet. Be very careful! */

int dirname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int dirname_main(int argc UNUSED_PARAM, char **argv)
{
	puts(dirname(single_argv(argv)));
	return fflush_all();
}