Examining structures exposed in the API

[Tom Yu]

>>>>> "lha" == Love  <lha at stacken.kth.se> writes:

lha> - ENCTYPE_ARCFOUR_HMAC vs ENCTYPE_ARCFOUR_HMAC_MD5
lha> - ENCTYPE_ARCFOUR_HMAC_EXP vs ENCTYPE_ARCFOUR_HMAC_MD5_56

Incidentally, these stomp on implementation namespace (!) ... in
particular, namespace reserved for errno.h, I believe.

---Tom