From 4fca9293dc0275829834fa09d7b50588244e599d Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Sat, 1 Aug 2009 11:48:31 +0200
Subject: [PATCH] Fix checksum writing in signboot.sh

The printf command takes an octal value after \, so we have to convert
our decimal representation to octal first and then write it.

This unbreaks extboot signing. Multiboot wasn't affected yet because
the checksum was < 8.

Spotted and first patch by Glauber Costa <glommer@redhat.com>.
Printf idea by Paolo Bonzini <bonzini@gnu.org>.

Signed-off-by: Alexander Graf <agraf@suse.de>
CC: Glauber Costa <glommer@redhat.com>
CC: Paolo Bonzini <bonzini@gnu.org>
CC: Jan Ondrej <ondrejj@salstar.sk>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
---
 pc-bios/optionrom/signrom.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pc-bios/optionrom/signrom.sh b/pc-bios/optionrom/signrom.sh
index 4322811372..975b27dd60 100755
--- a/pc-bios/optionrom/signrom.sh
+++ b/pc-bios/optionrom/signrom.sh
@@ -39,7 +39,8 @@ done
 
 sum=$(( $sum % 256 ))
 sum=$(( 256 - $sum ))
+sum_octal=$( printf "%o" $sum )
 
 # and write the output file
 cp "$1" "$2"
-printf "\\$sum" | dd of="$2" bs=1 count=1 seek=$size conv=notrunc 2>/dev/null
+printf "\\$sum_octal" | dd of="$2" bs=1 count=1 seek=$size conv=notrunc 2>/dev/null
-- 
2.11.4.GIT