mm_send_fd
if (mm_send_fd(sock, s->ptyfd) == -1 ||
mm_send_fd(sock, s->ttyfd) == -1)
int mm_send_fd(int, int);
if (mm_send_fd(fd, STDIN_FILENO) == -1 ||
mm_send_fd(fd, STDOUT_FILENO) == -1 ||
mm_send_fd(fd, STDERR_FILENO) == -1)
if (mm_send_fd(fd, STDIN_FILENO) == -1 ||
mm_send_fd(fd, STDOUT_FILENO) == -1)