[Opensc-commits] [OpenSC/OpenSC] 45c92b: fixed handling of GET RESPONSE

[Frank M. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSC/OpenSC
  Commit: 45c92bbcbd95d7efae67bf3bf2576ecd3bfc1529
      https://github.com/OpenSC/OpenSC/commit/45c92bbcbd95d7efae67bf3bf2576ecd3bfc1529
  Author: Frank Morgner <fra...@gm...>
  Date:   2021-11-15 (Mon, 15 Nov 2021)

  Changed paths:
    M src/libopensc/apdu.c

  Log Message:
  -----------
  fixed handling of GET RESPONSE

Upon reading a few number of bytes with GET DATA, Yubikey 4 responds
with these bytes *and* 61XX indicating that there is even more data
available (although it has not been requested). In `sc_get_response()`
we need to check early whether or not additional bytes are needed,
otherwise an unnecessary GET RESPONSE will be triggered.