7 int posix_spawn_file_actions_addfchdir_np(posix_spawn_file_actions_t *fa, int fd)
9 if (fd < 0) return EBADF;
10 struct fdop *op = malloc(sizeof *op);
11 if (!op) return ENOMEM;
12 op->cmd = FDOP_FCHDIR;
14 if ((op->next = fa->__actions)) op->next->prev = op;