smb_logon_xdr
if (!smb_logon_xdr(&xdrs, &user_info)) {
xdr_free(smb_logon_xdr, (char *)&user_info);
if (!smb_logon_xdr(&xdrs, obj)) {
xdr_free(smb_logon_xdr, (char *)obj);
slen = xdr_sizeof(smb_logon_xdr, &user_info);
ok = smb_logon_xdr(&xdrs, &user_info);
int smb_logon_xdr(struct XDR *, smb_logon_t *);