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amiga-clib2/library/unistd_strip_double_slash.c
Olaf Barthel 984c6729c1 - Updated the copyright information.
git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14789 87f5fb63-7c3d-0410-a384-fd976d0f7a62
2005-01-02 09:07:21 +00:00

88 lines
2.7 KiB
C

/*
* $Id: unistd_strip_double_slash.c,v 1.2 2005-01-02 09:07:19 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _UNISTD_HEADERS_H
#include "unistd_headers.h"
#endif /* _UNISTD_HEADERS_H */
/****************************************************************************/
/* Remove '//' from an AmigaDOS path name. For example, "volume:one/two//three"
is equivalent to "volume:one/three" and the following function removes the
redundant part of the path. */
void
__strip_double_slash(char * file_name,int len)
{
int start,delta,position,i;
assert( file_name != NULL && len > 0 );
position = len;
while(len > 1)
{
position--;
if((position == 0) || (file_name[position] == ':') || (file_name[position - 1] == ':'))
break;
if((position > 1) && (file_name[position] == '/') && (file_name[position - 1] == '/') && (file_name[position - 2] != ':') && (file_name[position - 2] != '/'))
{
start = position;
position -= 2;
while((position > 0) && (file_name[position] != ':') && (file_name[position] != '/'))
position--;
if((file_name[position] == ':') || (file_name[position] == '/'))
position++;
i = position;
delta = start - position + 1;
len -= delta;
while(i < len)
{
file_name[i] = file_name[i + delta];
i++;
}
file_name[len] = '\0';
position = len;
}
}
}