*p++ = LWS_META_CMD_CLOSE_NOTIFY;
*p++ = LWS_META_TRANSPORT_OFFSET +
lws_get_channel_id(pas->wsi);
- *p++ = pas->len - 2 + LWS_META_TRANSPORT_OFFSET;
+ *p++ = (unsigned char)pas->len +
+ LWS_META_TRANSPORT_OFFSET - 2;
*p++ = *bin++;
*p++ = *bin++;
for (n = 0; n < (int)pas->len - 2; n++)