https://bugzilla.novell.com/show_bug.cgi?id=668494

https://bugzilla.novell.com/show_bug.cgi?id=668494#c2


--- Comment #2 from Garth Tissington <[email protected]> 2011-02-02 
21:55:24 UTC ---
I have looked into this further and traced the mono source code as much I can.

Ultimately

WriteZStrema
DeflateStream.WriteZStream (z_stream, ptr, count);  is called  correctly from 

unsafe void WriteInternal (byte[] array, int offset, int count)

CheckResult is called correctly and never falls through to the error handler
cases.  i.e result is always >=0

So, everything in the DeflateStream class appears to be handled correctly.

However, WriteInternal does not produce the correct output file as described in
the original report.



WriteZStream is defined as...
[DllImport (LIBNAME, CallingConvention=CallingConvention.Cdecl)]
static extern int WriteZStream (IntPtr stream, IntPtr buffer, int length);

So I can go no further.

One more note though is that LIBNAME above is defined as


#if MONOTOUCH
        const string LIBNAME = "__Internal";
#else
        const string LIBNAME = "MonoPosixHelper";
#endif


If I define MONOTOUCH I get the problem as defined here.  If I remove the
MONOTOUCH DEF then The app crashes  on DllNotFound for MonoPosixHelp.dll

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