83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
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/****************************************************************************
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*
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* Open Watcom Project
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*
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* ========================================================================
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*
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* This file contains Original Code and/or Modifications of Original
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* Code as defined in and that are subject to the Sybase Open Watcom
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* Public License version 1.0 (the 'License'). You may not use this file
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* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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* provided with the Original Code and Modifications, and is also
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* available at www.sybase.com/developer/opensource.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
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* NON-INFRINGEMENT. Please see the License for the specific language
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* governing rights and limitations under the License.
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*
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* ========================================================================
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*
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* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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* DESCRIBE IT HERE!
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*
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****************************************************************************/
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#include "variety.h"
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#include <windows.h>
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#include <unistd.h>
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#include "iomode.h"
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#include "fileacc.h"
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#include "rtcheck.h"
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#include "seterrno.h"
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#include "lseek.h"
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#include "kolibri.h"
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typedef struct
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{
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char *name;
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unsigned int offset;
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}__file_handle;
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_WCRTLINK int chsize( int hid, long size )
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{
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long curOffset;
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long rc;
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__file_handle *fh;
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__handle_check( hid, -1 );
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fh = (__file_handle*) __getOSHandle( hid );
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_AccessFileH( hid );
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curOffset = __lseek( hid, 0L, SEEK_CUR ); /* get current offset */
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rc = set_file_size(fh->name, size);
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if(rc !=0 )
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{
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_ReleaseFileH( hid );
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if(rc==8)
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__set_errno( ENOSPC );
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else
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__set_errno( EACCES );
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return -1;
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};
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if( curOffset > size ) curOffset = size;
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curOffset = __lseek( hid, curOffset, SEEK_SET );
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_ReleaseFileH( hid );
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if( curOffset == -1 ) {
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__set_errno(ENOSPC);
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return( -1 );
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}
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return( 0 );
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}
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