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fix for crash in bigtiff (issue #208)

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This commit is contained in:
Michał Walenciak 2018-01-13 11:44:31 +01:00
parent 4be065595e
commit 1647908e00
1 changed files with 7 additions and 5 deletions
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12
src/bigtiffimage.cpp
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@ -110,14 +110,16 @@ namespace Exiv2
byte buffer[8];
io.read(buffer, 2);
const int size = getUShort(buffer, byteOrder);
assert(size == 8);
io.read(buffer, 2); // null
if (size == 8)
{
io.read(buffer, 2); // null
io.read(buffer, 8);
const uint64_t offset = getULongLong(buffer, byteOrder);
io.read(buffer, 8);
const uint64_t offset = getULongLong(buffer, byteOrder);
result = Header(byteOrder, magic, size, offset);
result = Header(byteOrder, magic, size, offset);
}
}
return result;