blob: 625b107882132eaa8ec85be8da5a5035f0fb0cc9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <spawn.h>
#include <unistd.h>
#include "spawn_int.h"
/* Add an action to FILE-ACTIONS which tells the implementation to call
`dup2' for the given file descriptors during the `spawn' call. */
int
__posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t *file_actions,
int fd, int newfd)
{
struct __spawn_action *rec;
if (!__spawn_valid_fd (fd) || !__spawn_valid_fd (newfd))
return EBADF;
/* Allocate more memory if needed. */
if (file_actions->__used == file_actions->__allocated
&& __posix_spawn_file_actions_realloc (file_actions) != 0)
/* This can only mean we ran out of memory. */
return ENOMEM;
/* Add the new value. */
rec = &file_actions->__actions[file_actions->__used];
rec->tag = spawn_do_dup2;
rec->action.dup2_action.fd = fd;
rec->action.dup2_action.newfd = newfd;
/* Account for the new entry. */
++file_actions->__used;
return 0;
}
weak_alias (__posix_spawn_file_actions_adddup2,
posix_spawn_file_actions_adddup2)
|
GitWeb
