REEXEC_STARTUP_PIPE_FD
startup_pipe = dup(REEXEC_STARTUP_PIPE_FD);
close(REEXEC_STARTUP_PIPE_FD);
close(REEXEC_STARTUP_PIPE_FD);
else if (startup_pipe != REEXEC_STARTUP_PIPE_FD) {
if (dup2(startup_pipe, REEXEC_STARTUP_PIPE_FD) == -1)