util/tap/tap.cc

427     pollfd *client_pfd = listening ? NULL : &pfds[0];
442                 if (client_pfd) {
447                     client_pfd = &pfds[2];
448                     client_pfd->fd = fd;
459                 if (tap->read(data, len) && client_pfd) {
463                     write(client_pfd->fd, &swaplen, sizeof(swaplen));
464                     write(client_pfd->fd, data, len);
471         if (client_pfd && client_pfd->revents) {
472             if (client_pfd->revents & POLLIN) {
474                     int len = read(client_pfd->fd, buffer + buffer_offset,
506             if (client_pfd->revents & POLLERR) {
509                 close(client_pfd->fd);
510                 client_pfd = NULL;
520             if (client_pfd)
521                 client_pfd->revents = 0;
531     if (client_pfd)
532         close(client_pfd->fd);