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Unified Diff: core/include/fxcrt/fx_stream.h

Issue 419063002: Fix the potential integer overflow from 'offset+size' in extension.h and fpdfview.cpp (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 6 years, 5 months ago
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Index: core/include/fxcrt/fx_stream.h
diff --git a/core/include/fxcrt/fx_stream.h b/core/include/fxcrt/fx_stream.h
index ef730bb96708978408f40725118d1a64e4ea1aa7..8e298f772754cc6626ed0c81a0dfc76e4ccab0f5 100644
--- a/core/include/fxcrt/fx_stream.h
+++ b/core/include/fxcrt/fx_stream.h
@@ -30,6 +30,7 @@ FX_DEFINEHANDLE(FX_HFILE)
#endif
#define FX_FILESIZE off_t
#endif
+typedef base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;
#define FX_GETBYTEOFFSET32(a) 0
#define FX_GETBYTEOFFSET40(a) 0
#define FX_GETBYTEOFFSET48(a) 0
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