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/* vi: set sw=4 ts=4: */
/*
* Mini dirname function.
*
* Copyright (C) 2001 Matt Kraai.
*
* 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 <string.h>
#include "libbb.h"
/* Return a string containing the path name of the parent
* directory of PATH. */
char *dirname(const char *path)
{
const char *s;
/* Go to the end of the string. */
s = path + strlen(path) - 1;
/* Strip off trailing /s (unless it is also the leading /). */
while (path < s && s[0] == '/')
s--;
/* Strip the last component. */
while (path <= s && s[0] != '/')
s--;
while (path < s && s[0] == '/')
s--;
if (s < path)
return ".";
s[1] = '\0';
return path;
}
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