[3/4] ws2_32: Avoid a crash with an optional pointer in WSAAsyncGetServByPort.

[Andrew Nguyen]

---
 dlls/ws2_32/async.c      |   16 ++++++++---
 dlls/ws2_32/tests/sock.c |   63 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 75 insertions(+), 4 deletions(-)


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