posix_spawn_file_actions_adddup2
if (posix_spawn_file_actions_adddup2(&fd_actions, fds[1],
extern int posix_spawn_file_actions_adddup2(
error = posix_spawn_file_actions_adddup2(&fact, pv[1], 1);
error = posix_spawn_file_actions_adddup2(fact,
if ((ret = posix_spawn_file_actions_adddup2(acts, STDIN_FILENO,
if ((ret = posix_spawn_file_actions_adddup2(acts, pipes[1],