rem: memcpy(vbuf, reqPtr->next, toread);
add: memcpy(vbuf, reqPtr->next, (size_t)toread);
context: Ns_ConnRead(Ns_Conn *conn, void *vbuf, int toread){    Conn *connPtr = (Conn *) conn;    Request *reqPtr = connPtr->reqPtr;    if (connPtr->sockPtr == NULL) {	return -1;    }    if (toread > reqPtr->avail) {	toread = reqPtr->avail;    }    memcpy(vbuf, reqPtr->next, toread);    reqPtr->next  += toread;    reqPtr->avail -= toread;    return toread;}