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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 548 | serge | 1 | /**************************************************************************** |
| 2 | * |
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| 3 | * Open Watcom Project |
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| 4 | * |
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| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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| 6 | * |
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| 7 | * ======================================================================== |
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| 8 | * |
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| 9 | * This file contains Original Code and/or Modifications of Original |
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| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
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| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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| 14 | * provided with the Original Code and Modifications, and is also |
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| 15 | * available at www.sybase.com/developer/opensource. |
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| 16 | * |
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| 17 | * The Original Code and all software distributed under the License are |
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| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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| 23 | * governing rights and limitations under the License. |
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| 24 | * |
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| 25 | * ======================================================================== |
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| 26 | * |
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| 27 | * Description: lseek wrapper with positive -> extend file check |
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| 28 | * |
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| 29 | ****************************************************************************/ |
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| 30 | |||
| 31 | |||
| 32 | #include "variety.h" |
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| 33 | #include |
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| 34 | #include |
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| 35 | #ifdef __NT__ |
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| 36 | #include |
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| 37 | #endif |
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| 38 | #include "iomode.h" |
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| 39 | #include "rtcheck.h" |
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| 40 | #include "seterrno.h" |
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| 41 | #include "lseek.h" |
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| 42 | |||
| 43 | _WCRTLINK long lseek( int handle, long offset, int origin ) |
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| 44 | { |
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| 45 | unsigned iomode_flags; |
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| 46 | |||
| 47 | __handle_check( handle, -1 ); |
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| 48 | |||
| 49 | /*** Set the _FILEEXT iomode_flags bit if positive offset ***/ |
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| 50 | iomode_flags = __GetIOMode( handle ); |
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| 51 | |||
| 52 | if( offset > 0 && !(iomode_flags & _APPEND) ) |
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| 53 | __SetIOMode( handle, iomode_flags | _FILEEXT ); |
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| 54 | return( __lseek( handle, offset, origin ) ); |
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| 55 | } |