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- 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
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
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* $Id: stdio_remove_fd_alias.c,v 1.5 2006-10-10 13:39:26 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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#ifndef _STDIO_HEADERS_H
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#include "stdio_headers.h"
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#endif /* _STDIO_HEADERS_H */
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/****************************************************************************/
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void
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__remove_fd_alias(struct fd * fd)
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{
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assert( fd != NULL );
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__stdio_lock();
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if(fd->fd_Original != NULL) /* this is an alias */
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{
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struct fd * list_fd;
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assert( fd->fd_Original != fd );
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assert( fd->fd_Original->fd_Original == NULL );
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/* Remove this alias from the list. */
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for(list_fd = fd->fd_Original ;
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list_fd != NULL ;
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list_fd = list_fd->fd_NextAlias)
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{
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if(list_fd->fd_NextAlias == fd)
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{
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list_fd->fd_NextAlias = fd->fd_NextAlias;
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break;
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}
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}
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}
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else if (fd->fd_NextAlias != NULL) /* this one has aliases attached; it is the 'original' resource */
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{
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struct fd * first_alias;
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struct fd * next_alias;
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struct fd * list_fd;
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/* The first link now becomes the original resource */
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first_alias = fd->fd_NextAlias;
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next_alias = first_alias->fd_NextAlias;
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/* Structure copy... */
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(*first_alias) = (*fd);
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/* Fix up the linkage. */
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first_alias->fd_NextAlias = next_alias;
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first_alias->fd_Original = NULL;
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/* The resources are migrated to the first link. */
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for(list_fd = next_alias ;
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list_fd != NULL ;
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list_fd = list_fd->fd_NextAlias)
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{
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list_fd->fd_Original = first_alias;
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}
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}
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__stdio_unlock();
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}
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