Fix format spec errors in Windows builds

Fix format spec errors in Windows builds

- Correct an instance of %s used for wchar_t * (should be %ls)
  and some %d for DWORD or %lu for int.
- Cast socket descriptor to (int) during i/o as its unsigned int
  or int64 in Windows but signed int in other platforms.

Signed-off-by: Selva Nair <selva.nair@gmail.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1519274017-19921-1-git-send-email-selva.nair@gmail.com>
URL: https://www.mail-archive.com/search?l=mid&q=1519274017-19921-1-git-send-email-selva.nair@gmail.com
Signed-off-by: Gert Doering <gert@greenie.muc.de>