From a5cede8c24fddda9b73f142e09b18b49adde1b9c Mon Sep 17 00:00:00 2001
From: Franck Bui <fbui@suse.com>
Date: Tue, 1 Oct 2019 14:31:14 +0200
Subject: pid1: restore the original environment passed by the kernel when
 switching to a new system manager

PID1 may modified the environment passed by the kernel when it starts
running. Commit 9d48671c62de133a2b9fe7c31e70c0ff8e68f2db unset $HOME for
example.

In case PID1 is going to switch to a new root and execute a new system manager
which is not systemd, we should restore the original environment as the new
manager might expect some variables to be set by default (more specifically
$HOME).
---
 src/basic/util.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/basic/util.h')

diff --git a/src/basic/util.h b/src/basic/util.h
index 6fc7480fcb..15444b2e5c 100644
--- a/src/basic/util.h
+++ b/src/basic/util.h
@@ -13,6 +13,9 @@ static inline void save_argc_argv(int argc, char **argv) {
         saved_argv = argv;
 }
 
+extern char **saved_env;
+void save_env(void);
+
 bool kexec_loaded(void);
 
 int prot_from_flags(int flags) _const_;
-- 
cgit v1.2.1