* k5-int.h: krb5_alt_method, krb5_etype_info_entry length fields

	* k5-int.h: krb5_alt_method, krb5_etype_info_entry length fields
	changed to unsigned int. KRB5_ETYPE_NO_LENGTH defined.  Change
	prototype decode_krb5_sam_key to decode_krb5_enc_sam_key which is
	what the code says.
	krb5int_access - change timeouts, shifts, etc to unsigned ints.

	* krb5.hin: krb5_data, krb5_address, krb5_keyblock, krb5_checksum,
	krb5_authdata, and krb5_pa_data length fields changed to unsigned
	int. krb5_kt_get_name(), krb5_unparse_name_ext(),
	krb5_build_principal(), krb5_build_principal_ext(),
	krb5_build_principal_va() and krb5_read_password() all take or
	return unsigned int lengths.

	* port-sockets.h (SOCKET): Under unix, a socket is of type int.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@12773 dc483132-0cff-0310-8789-dd5450dbe970