busybox/dirname.c

46 lines
1.3 KiB
C
Raw Normal View History

2000-03-05 13:37:00 +05:30
/* vi: set sw=4 ts=4: */
/*
* Mini dirname implementation for busybox
*
* Copyright (C) 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.
2000-03-05 13:37:00 +05:30
*
* 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
2000-03-05 13:37:00 +05:30
*
*/
#include "busybox.h"
2000-03-05 13:37:00 +05:30
#include <stdio.h>
extern int dirname_main(int argc, char **argv)
2000-03-05 13:37:00 +05:30
{
char* s;
2000-03-05 13:37:00 +05:30
if ((argc < 2) || (**(argv + 1) == '-'))
usage(dirname_usage);
argv++;
2000-03-05 13:37:00 +05:30
s=*argv+strlen(*argv)-1;
while (s != *argv && *s == '/') {
*s-- = '\0';
2000-03-05 13:37:00 +05:30
}
s = strrchr(*argv, '/');
if (s != NULL && s == *argv)
s[1] = '\0';
else if (s != NULL)
*s = '\0';
puts(s ? *argv : ".");
return EXIT_SUCCESS;
2000-03-05 13:37:00 +05:30
}