From af32be0fb49f30b2455a09eba763a4caef5161ea Mon Sep 17 00:00:00 2001
From: Christian Boltz <apparmor@cboltz.de>
Date: Thu, 11 Jun 2020 22:15:07 +0200
Subject: [PATCH] Error out on unhandled parts when parsing a profile

... (using `%option nodefault`) instead of echoing the unknown parts to
stdout, and ignoring the error.

This will cause the parser to error out with

    flex scanner jammed

and $?=2 if a profile contains unknown/invalid parts. That's not really
a helpful error message, but still better than ignoring errors.

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/569
Signed-off-by: Christian Boltz <apparmor@cboltz.de>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Steve Beattie <sbeattie@ubuntu.com>
(cherry picked from commit c01ed1d57b6115067f43a405b14acf24d84ff03a)
---
 parser/parser_lex.l | 1 +
 1 file changed, 1 insertion(+)

diff --git a/parser/parser_lex.l b/parser/parser_lex.l
index 22db7e742..db62492a4 100644
--- a/parser/parser_lex.l
+++ b/parser/parser_lex.l
@@ -24,6 +24,7 @@
 %option noyywrap
 %option nounput
 %option stack
+%option nodefault
 
 %{
 #include <stdio.h>