busybox/coreutils/basename.c

/* vi: set sw=4 ts=4: */
/*
 * Mini basename implementation for busybox
 *
 * Copyright (C) 1999,2000 by Lineo, inc.
 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include "internal.h"
#include <stdio.h>

extern int basename_main(int argc, char **argv)
{
	char* s, *s1;

	if ((argc < 2) || (**(argv + 1) == '-')) {
		usage("basename [FILE ...]\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
				"\nStrips directory path and suffixes from FILE(s).\n"
#endif
				);
	}
	argv++;

	s1=*argv+strlen(*argv)-1;
	while (s1 && *s1 == '/') {
		*s1 = '\0';
		s1=*argv+strlen(*argv)-1;
	}
	s = strrchr(*argv, '/');
	printf("%s\n", (s)? s + 1 : *argv);
	exit(TRUE);
}