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7f0f7929ba
- Replaced ISO Latin 1 code #160 with a plain blank space (ASCII code #32) where necessary git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15305 87f5fb63-7c3d-0410-a384-fd976d0f7a62
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/*
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* $Id: libgen_dirname.c,v 1.8 2006-10-02 07:15:37 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include <libgen.h>
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#include <stdio.h>
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/****************************************************************************/
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#include "debug.h"
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/****************************************************************************/
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/* The following is not part of the ISO 'C' (1994) standard. */
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/****************************************************************************/
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char *
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dirname(const char *path)
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{
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static char new_path[MAXPATHLEN];
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const char * str;
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char * result;
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size_t len;
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ENTER();
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if(path == NULL)
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SHOWPOINTER(path);
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else
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SHOWSTRING(path);
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/* An empty path always comes out as the "current directory". */
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str = ".";
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len = 1;
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if(path != NULL && path[0] != '\0')
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{
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/* Strip all trailing slashes. */
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len = strlen(path);
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while(len > 1 && path[len-1] == '/')
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len--;
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/* Is there anything left? */
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if(len > 0)
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{
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size_t i;
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for(i = len-1 ; ; i--)
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{
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if(path[i] == '/')
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{
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/* Return everything up to, but not including
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the last slash in the path. That's usually
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the directory name. */
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str = path;
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len = i;
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/* If that produces an empty string, it means
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that the entire string consists of slash
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characters. We'll return only the first. */
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if(i == 0)
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len++;
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break;
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}
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if(i == 0)
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break;
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}
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}
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}
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/* Truncate the path name we can return. This function always returns
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a valid pointer rather than NULL because some software expects it
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to do so (I blame the specifications). */
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if(len >= sizeof(new_path))
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len = sizeof(new_path)-1;
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memcpy(new_path,str,len);
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new_path[len] = '\0';
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result = new_path;
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RETURN(result);
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return(result);
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}
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