buildroot/package/apparmor/0003-fix-regex-in-rc.apparmor.functions-to-work-with-busy.patch

From 12764faa0a01bcc4e0ffc92ce308985dbad0d954 Mon Sep 17 00:00:00 2001
From: Adam Duskett <Aduskett@gmail.com>
Date: Thu, 7 May 2020 18:25:29 -0700
Subject: [PATCH] fix regex in rc.apparmor.functions to work with busybox

The following regex string in rc.apparmor.functions
"^/.*[ \t]+flags[ \t]*=[ \t]*\([ \t]*complain[ \t]*\)[ \t]+{" is broken due to
the unescaped {. GNU grep ignores the error. However, the Busybox grep does
not and throws the error "unescaped character {"

Escape the "{" character to fix this issue.

Note: Upstream has rewritten large sections of the rc.apparmor.functions file
and the function this patch fixes will no longer be necessary after the next
version is released.

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
---
 parser/rc.apparmor.functions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/parser/rc.apparmor.functions b/parser/rc.apparmor.functions
index f3108f8..db0697c 100644
--- a/parser/rc.apparmor.functions
+++ b/parser/rc.apparmor.functions
@@ -140,7 +140,7 @@ force_complain() {
 	local profile=$1
 
 	# if profile not in complain mode
-	if ! egrep -q "^/.*[ \t]+flags[ \t]*=[ \t]*\([ \t]*complain[ \t]*\)[ \t]+{" $profile ; then
+	if ! grep -E -q "^/.*[ \t]+flags[ \t]*=[ \t]*\([ \t]*complain[ \t]*\)[ \t]+\{" $profile ; then
 		local link="${PROFILE_DIR}/force-complain/`basename ${profile}`"
 		if [ -e "$link" ] ; then
 			aa_log_warning_msg "found $link, forcing complain mode"
-- 
2.26.2