if (!PyArg_ParseTuple(arg, "O&s#:add", convuint, &i, &p, &n)) goto end;
if (i > 254) VALERR("index must be < 255");
if (n != GFSHARE_S(me)->sz) VALERR("bad share size");
if (!PyArg_ParseTuple(arg, "O&s#:add", convuint, &i, &p, &n)) goto end;
if (i > 254) VALERR("index must be < 255");
if (n != GFSHARE_S(me)->sz) VALERR("bad share size");