hush/dirname.c

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/* 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.
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*
* 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
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*
*/
#include "internal.h"
#include <stdio.h>
extern int dirname_main(int argc, char **argv)
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{
char* s;
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if ((argc < 2) || (**(argv + 1) == '-')) {
usage("dirname [FILENAME ...]\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nStrips non-directory suffix from FILENAME\n"
#endif
);
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}
argv++;
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s=*argv+strlen(*argv)-1;
while (s && *s == '/') {
*s = '\0';
s=*argv+strlen(*argv)-1;
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}
s = strrchr(*argv, '/');
if (s && *s)
*s = '\0';
printf("%s\n", (s)? *argv : ".");
exit(TRUE);
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}