1 /* Add a directory change to a file action list for posix_spawn. 2 Copyright (C) 2000-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <errno.h> 20 #include <spawn.h> 21 #include <string.h> 22 23 #include "spawn_int.h" 24 25 int posix_spawn_file_actions_addfchdir_np(posix_spawn_file_actions_t * actions,int fd)26posix_spawn_file_actions_addfchdir_np (posix_spawn_file_actions_t *actions, 27 int fd) 28 { 29 struct __spawn_action *rec; 30 31 /* Allocate more memory if needed. */ 32 if (actions->__used == actions->__allocated 33 && __posix_spawn_file_actions_realloc (actions) != 0) 34 /* This can only mean we ran out of memory. */ 35 return ENOMEM; 36 37 /* Add the new value. */ 38 rec = &actions->__actions[actions->__used]; 39 rec->tag = spawn_do_fchdir; 40 rec->action.fchdir_action.fd = fd; 41 42 /* Account for the new entry. */ 43 ++actions->__used; 44 45 return 0; 46 } 47