| /* Copyright (C) 2000-2018 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 "spawn_int.h" |
| |
| /* Add an action to FILE-ACTIONS which tells the implementation to call |
| `close' for the given file descriptor during the `spawn' call. */ |
| int |
| posix_spawn_file_actions_addclose (posix_spawn_file_actions_t *file_actions, |
| int fd) |
| { |
| struct __spawn_action *rec; |
| |
| if (!__spawn_valid_fd (fd)) |
| 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_close; |
| rec->action.open_action.fd = fd; |
| |
| /* Account for the new entry. */ |
| ++file_actions->__used; |
| |
| return 0; |
| } |