From bbe35a6e1b54ef5cd7c1c471886c30ba85c0804e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 19:47:50 +0200 Subject: Adding upstream version 1.21. Signed-off-by: Daniel Baumann --- lib/spawn_faction_addclose.c | 69 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 lib/spawn_faction_addclose.c (limited to 'lib/spawn_faction_addclose.c') diff --git a/lib/spawn_faction_addclose.c b/lib/spawn_faction_addclose.c new file mode 100644 index 0000000..5654e97 --- /dev/null +++ b/lib/spawn_faction_addclose.c @@ -0,0 +1,69 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include +#include + +#if !_LIBC +# define __sysconf(open_max) getdtablesize () +#endif + +#if REPLACE_POSIX_SPAWN +# include "spawn_int.h" +#endif + +/* 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) +#undef posix_spawn_file_actions_addclose +{ + int maxfd = __sysconf (_SC_OPEN_MAX); + + /* Test for the validity of the file descriptor. */ + if (fd < 0 || fd >= maxfd) + return EBADF; + +#if !REPLACE_POSIX_SPAWN + return posix_spawn_file_actions_addclose (file_actions, fd); +#else + /* 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; + + { + struct __spawn_action *rec; + + /* 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; + } +#endif +} -- cgit v1.2.3