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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 727 | 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: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE |
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| 28 | * DESCRIBE IT HERE! |
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| 29 | * |
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| 30 | ****************************************************************************/ |
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| 31 | |||
| 32 | |||
| 33 | #include "variety.h" |
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| 34 | #include |
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| 35 | #include |
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| 36 | #include "iomode.h" |
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| 37 | #include "fileacc.h" |
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| 38 | #include "rtcheck.h" |
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| 39 | #include "seterrno.h" |
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| 40 | #include "lseek.h" |
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| 41 | #include "kolibri.h" |
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| 42 | |||
| 43 | typedef struct |
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| 44 | { |
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| 45 | char *name; |
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| 46 | unsigned int offset; |
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| 47 | }__file_handle; |
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| 48 | |||
| 49 | _WCRTLINK int chsize( int hid, long size ) |
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| 50 | { |
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| 51 | long curOffset; |
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| 52 | long rc; |
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| 53 | __file_handle *fh; |
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| 54 | |||
| 55 | __handle_check( hid, -1 ); |
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| 56 | fh = (__file_handle*) __getOSHandle( hid ); |
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| 57 | |||
| 58 | _AccessFileH( hid ); |
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| 59 | |||
| 60 | curOffset = __lseek( hid, 0L, SEEK_CUR ); /* get current offset */ |
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| 61 | |||
| 62 | rc = set_file_size(fh->name, size); |
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| 63 | |||
| 64 | if(rc !=0 ) |
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| 65 | { |
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| 66 | _ReleaseFileH( hid ); |
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| 67 | if(rc==8) |
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| 68 | __set_errno( ENOSPC ); |
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| 69 | else |
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| 70 | __set_errno( EACCES ); |
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| 71 | return -1; |
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| 72 | }; |
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| 73 | |||
| 74 | if( curOffset > size ) curOffset = size; |
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| 75 | curOffset = __lseek( hid, curOffset, SEEK_SET ); |
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| 76 | _ReleaseFileH( hid ); |
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| 77 | if( curOffset == -1 ) { |
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| 78 | __set_errno(ENOSPC); |
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| 79 | return( -1 ); |
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| 80 | } |
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| 81 | return( 0 ); |
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| 82 | } |