Fatal signal 11 with GifDrawable created from InputStream

[Wavesonics]

I'm tracking down a crash in the native side.

Repro:
Create a GifDrawable from a ByteArrayInputStream: new GifDrawable( inputStream )

It will appear to create correctly, reporting proper width, height, and no error.

However, once a frame is requested from it, it will crash with the following back trace:

signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 000002c0
00 pc 00001670 /data/app-lib/xxx/libgif.so
01 pc 000028c3 /data/app-lib/xxx/libgif.so (DGifGetRecordType+32)
02 pc 000018ed /data/app-lib/xxx/libgif.so (DDGifSlurp+20)
03 pc 00002123 /data/app-lib/xxx/libgif.so (Java_pl_droidsonroids_gif_GifDrawable_renderFrame+670)

Using the exact same image and loading it either as a Resource, or FileDescriptor works flawlessly. From my investigation so far, it looks like the problem likely resides in:
gif.c :: openStream() the JNI implementation

It's the only part of the code path that is different depending on the source (InputStream VS FileDescriptor)

[Wavesonics]

Recompiled with debug symbols, the stack trace looks like this:

Fatal signal 11 (SIGSEGV) at 0x000002c1 (code=1), thread 5097
00 pc 000017fe /data/app-lib/xxx/libgif.so (streamReadFun+25)
01 pc 0000321d /data/app-lib/xxx/libgif.so (DGifGetRecordType+68)
02 pc 00001b75 /data/app-lib/xxx/libgif.so (DDGifSlurp+20)
03 pc 00002903 /data/app-lib/xxx/libgif.so (getBitmap+138)
04 pc 00002a7b /data/app-lib/xxx/libgif.so (Java_pl_droidsonroids_gif_GifDrawable_renderFrame+166)

So looks like streamReadFun() is blowing up. It's not always the exact same stack, but it's always the same terminus, streamReadFun()

[Wavesonics]

This was fixed by #11