add: flag = ((flag==0) ? 0 : 1);
context: WMSetConnectionNonBlocking(WMConnection *cPtr, Bool flag){    wassertrv(cPtr!=NULL && cPtr->sock>=0, False);    if (cPtr->isNonBlocking == flag)        return True;    if (setSocketNonBlocking(cPtr->sock, flag)==True) {        cPtr->isNonBlocking = flag;        return True;    }    return False;}