mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/* Copyright (C) 2000-2014 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <spawn.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "spawn_int.h"
|
|
|
|
/* Add an action to FILE-ACTIONS which tells the implementation to call
|
|
`open' for the given file during the `spawn' call. */
|
|
int
|
|
posix_spawn_file_actions_addopen (posix_spawn_file_actions_t *file_actions,
|
|
int fd, const char *path, int oflag,
|
|
mode_t mode)
|
|
{
|
|
int maxfd = __sysconf (_SC_OPEN_MAX);
|
|
struct __spawn_action *rec;
|
|
|
|
/* Test for the validity of the file descriptor. */
|
|
if (fd < 0 || fd >= maxfd)
|
|
return EBADF;
|
|
|
|
char *path_copy = strdup (path);
|
|
if (path_copy == NULL)
|
|
return ENOMEM;
|
|
|
|
/* 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. */
|
|
free (path_copy);
|
|
return ENOMEM;
|
|
}
|
|
|
|
/* Add the new value. */
|
|
rec = &file_actions->__actions[file_actions->__used];
|
|
rec->tag = spawn_do_open;
|
|
rec->action.open_action.fd = fd;
|
|
rec->action.open_action.path = path_copy;
|
|
rec->action.open_action.oflag = oflag;
|
|
rec->action.open_action.mode = mode;
|
|
|
|
/* Account for the new entry. */
|
|
++file_actions->__used;
|
|
|
|
return 0;
|
|
}
|