Unity3d 4.6.2 version il2cpp zip compression bug in the compilation environment

Recently updated to the latest version of Unity3d, this issue was discovered when using Il2cpp to publish 64-bit iOS apps. It resulted in my original encrypted files can not be extracted, checked the day, fixed.

1. Download the zip's original code on GitHub, Https://codeload.github.com/0xd4d/de4dot/zip/master

2. Directly under the Unity3d project, compile, the compiler will directly overwrite the system's own zip.

3. Modify the source file: ~/zip/compression/streams/streammanipulator.cs

From

Buffer_ |= (UINT) ((window_[windowstart_++] & 0xFF | (window_[windowstart_++] & 0xff) << 8) << bitsinbuffer_);

To

byte [] abuf = new Byte[2];abuf[0] = window_[windowstart_++];abuf[1] = Window_[windowstart_++];buffer_ |= (UINT) (((aBuf[0 ] & 0xff) | ((Abuf[1] & 0xff) << 8)) << bitsinbuffer_);

PS: This problem, can be said to be il2cpp the problem of compiling, also can say this line of code write compatibility is not very good, see understand it!

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Unity3d 4.6.2 version il2cpp zip compression bug in the compilation environment