xdr_int_decode
if (xdr_int_decode(&m, &error) != 0 || error != 0)
if (xdr_int_decode(&m, fhsizep) != 0 ||
if (xdr_int_decode(&m, &authcount) != 0)
if (xdr_int_decode(&m, &authver) != 0)
static int xdr_int_decode(struct mbuf **ptr, int *iptr);