From 3ba34141da77a24c251ee6530f3f72a366fe556e Mon Sep 17 00:00:00 2001
From: Philipp Stephani <phst@google.com>
Date: Fri, 25 Dec 2020 11:33:02 +0100
Subject: Import posix_spawn from Gnulib.
posix_spawn is less error-prone than vfork + exec, and can make use of
system-specific optimizations like `clone' on Linux. Import Gnulib
replacement so that we can use recent additions like
`posix_spawn_file_actions_addchdir'.
The only manual change are to admin/merge-gnulib and .gitignore. All
other changes are due to rerunning merge-gnulib.
* admin/merge-gnulib (GNULIB_MODULES): Add posix_spawn-related
modules.
* .gitignore: Add new generated files.
---
lib/spawn.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 lib/spawn.c
(limited to 'lib/spawn.c')
diff --git a/lib/spawn.c b/lib/spawn.c
new file mode 100644
index 00000000000..b658453a10f
--- /dev/null
+++ b/lib/spawn.c
@@ -0,0 +1,34 @@
+/* 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 <https://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+/* Specification. */
+#include <spawn.h>
+
+#include "spawn_int.h"
+
+/* Spawn a new process executing PATH with the attributes describes in *ATTRP.
+ Before running the process perform the actions described in FILE-ACTIONS. */
+int
+posix_spawn (pid_t *pid, const char *path,
+ const posix_spawn_file_actions_t *file_actions,
+ const posix_spawnattr_t *attrp, char *const argv[],
+ char *const envp[])
+{
+ return __spawni (pid, path, file_actions, attrp,
+ (const char * const *) argv, (const char * const *) envp, 0);
+}
--
cgit v1.2.3