mm_receive_fd
int mm_receive_fd(int);
if ((*ptyfd = mm_receive_fd(pmonitor->m_recvfd)) == -1 ||
(*ttyfd = mm_receive_fd(pmonitor->m_recvfd)) == -1)
if ((new_fd[i] = mm_receive_fd(c->sock)) == -1) {
if ((new_fd[i] = mm_receive_fd(c->sock)) == -1) {
if ((sock = mm_receive_fd(sp[1])) == -1)