1#include <spawn.h>
2#include <stdlib.h>
3#include <errno.h>
4#include "fdop.h"
5
6int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *fa, int srcfd, int fd)
7{
8 if (srcfd < 0 || fd < 0) return EBADF;
9 struct fdop *op = malloc(sizeof *op);
10 if (!op) return ENOMEM;
11 op->cmd = FDOP_DUP2;
12 op->srcfd = srcfd;
13 op->fd = fd;
14 if ((op->next = fa->__actions)) op->next->prev = op;
15 op->prev = 0;
16 fa->__actions = op;
17 return 0;
18}