add_field(&buf, &ofs, &len, "opaque", opaque);
ustream_printf(uh->us, "Authorization: Digest nc=%s, qop=%s%s\r\n", data.nc, data.qop, buf);
add_field(&buf, &ofs, &len, "opaque", opaque);
ustream_printf(uh->us, "Authorization: Digest nc=%s, qop=%s%s\r\n", data.nc, data.qop, buf);