#186 Fixed a bug in TS_ScardControl()

[Martin Preuss]

Only allocate and fill input buffer if nInBufferSize>0.
This allows for commands which do not have input data, like IOCTL_FEATURE_REQUEST.

[Martin Preuss]

Patch to fix a bug in TS_ScardControl

[Martin Preuss]

Hopefully at least this patch will become part of rdesktop. My other patch from 2006 still didn't make it into scard.c...

[Martin Preuss]

Revised version of patch 001.