61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/*
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* $QNXLicenseC:
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* Copyright 2007, QNX Software Systems. All Rights Reserved.
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*
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* You must obtain a written license from and pay applicable license fees to QNX
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* Software Systems before you may reproduce, modify or distribute this software,
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* or any work that includes all or part of this software. Free development
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* licenses are available for evaluation and non-commercial purposes. For more
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* information visit http://licensing.qnx.com or email licensing@qnx.com.
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*
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* This file may contain contributions from others. Please review this entire
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* file for other proprietary rights or license notices, as well as the QNX
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* Development Suite License Guide at http://licensing.qnx.com/license-guide/
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* for other information.
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* $
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*/
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#if 0
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#include <lib/compat.h>
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off_t ltrunc( int fd, off_t offset, int whence )
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{
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off_t where;
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off_t total;
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off_t current;
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total = filelength( fd );
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if( total == -1 )
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{
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errno = EBADF;
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return( -1 );
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}
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current = tell( fd );
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if( current == -1 )
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{
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errno = EBADF;
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return( -1 );
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}
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switch( whence )
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{
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case SEEK_SET:
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where = offset;
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break;
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case SEEK_CUR:
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where = current + offset;
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break;
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case SEEK_END:
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where = total + offset;
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break;
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}
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if( where >= total )
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{
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errno = EINVAL;
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return( -1 );
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}
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return( chsize( fd, where ) );
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}
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#endif
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