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Side by Side Diff: core/include/fxcrt/fx_stream.h

Issue 896023003: Prevent base::CheckedNumeric from leaking outside of pdfium. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Add name of new .h to build files. Created 5 years, 10 months ago
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1 // Copyright 2014 PDFium Authors. All rights reserved. 1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 6
7 #ifndef _FX_STREAM_H_ 7 #ifndef _FX_STREAM_H_
8 #define _FX_STREAM_H_ 8 #define _FX_STREAM_H_
9 #ifndef _FX_MEMORY_H_ 9 #ifndef _FX_MEMORY_H_
10 #include "fx_memory.h" 10 #include "fx_memory.h"
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23 #include <unistd.h> 23 #include <unistd.h>
24 #include <sys/stat.h> 24 #include <sys/stat.h>
25 #ifndef O_BINARY 25 #ifndef O_BINARY
26 #define O_BINARY 0 26 #define O_BINARY 0
27 #endif 27 #endif
28 #ifndef O_LARGEFILE 28 #ifndef O_LARGEFILE
29 #define O_LARGEFILE 0 29 #define O_LARGEFILE 0
30 #endif 30 #endif
31 #define FX_FILESIZE off_t 31 #define FX_FILESIZE off_t
32 #endif 32 #endif
33 typedef base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;
34 #define FX_GETBYTEOFFSET32(a) 0 33 #define FX_GETBYTEOFFSET32(a) 0
35 #define FX_GETBYTEOFFSET40(a) 0 34 #define FX_GETBYTEOFFSET40(a) 0
36 #define FX_GETBYTEOFFSET48(a) 0 35 #define FX_GETBYTEOFFSET48(a) 0
37 #define FX_GETBYTEOFFSET56(a) 0 36 #define FX_GETBYTEOFFSET56(a) 0
38 #define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a>>24)) 37 #define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a>>24))
39 #define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a>>16)) 38 #define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a>>16))
40 #define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a>>8)) 39 #define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a>>8))
41 #define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a)) 40 #define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a))
42 #define FX_FILEMODE_Write 0 41 #define FX_FILEMODE_Write 0
43 #define FX_FILEMODE_ReadOnly 1 42 #define FX_FILEMODE_ReadOnly 1
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192 191
193 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; 192 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0;
194 193
195 virtual FX_LPCBYTE GetBlockBuffer() = 0; 194 virtual FX_LPCBYTE GetBlockBuffer() = 0;
196 195
197 virtual size_t GetBlockSize() = 0; 196 virtual size_t GetBlockSize() = 0;
198 197
199 virtual FX_FILESIZE GetBlockOffset() = 0; 198 virtual FX_FILESIZE GetBlockOffset() = 0;
200 }; 199 };
201 #endif 200 #endif
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