fix some 64-bit bugs in RPCSEC_GSS

fix some 64-bit bugs in RPCSEC_GSS

	* auth_gss.h: Add prototype for xdr_rpc_gss_buf.

	* authgss_prot.c (xdr_rpc_gss_buf): New function.
	(xdr_rpc_gss_cred, xdr_rpc_gss_init_args, xdr_rpc_gss_init_res):
	(xdr_rpc_gss_wrap_data, xdr_rpc_gss_unwrap_data): Use
	xdr_rpc_gss_buf, to avoid passing a (size_t *) to a xdr_bytes(),
	which expects (u_int *).
	(xdr_rpc_gss_wrap_data): Use tmplen to avoid passing (size_t *) to
	xdr_u_int.

	* libgssrpc.exports:
	* rename.h: Add xdr_rpc_gss_buf.

	* xdr.c (xdr_enum): Fix (kind of) for 64-bit.  Still inherently
	bogus, due to casting of (enum foo *) to (enum_t *) by callers.

ticket: new
component: krb5-libs

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@16499 dc483132-0cff-0310-8789-dd5450dbe970