Teach dsa-check-running-kernel about LZMA compressed kernel images.

[mirror/dsa-nagios.git] / dsa-nagios-checks / checks / dsa-check-running-kernel

diff --git a/dsa-nagios-checks/checks/dsa-check-running-kernel b/dsa-nagios-checks/checks/dsa-check-running-kernel
index df78397..b386774 100755 (executable)
--- a/dsa-nagios-checks/checks/dsa-check-running-kernel
+++ b/dsa-nagios-checks/checks/dsa-check-running-kernel
@@ -5,6 +5,7 @@
 
 # Copyright 2008,2009 Peter Palfrader
 # Copyright 2009 Stephen Gran
+# Copyright 2010 Uli Martens
 #
 # Permission is hereby granted, free of charge, to any person obtaining
 # a copy of this software and associated documentation files (the
@@ -118,12 +119,13 @@ get_avail() {
 }
 
 get_image() {
-       local image GZHDR1 GZHDR2 off
+       local image GZHDR1 GZHDR2 LZHDR off
 
        image="$1"
 
        GZHDR1="\x1f\x8b\x08\x00"
        GZHDR2="\x1f\x8b\x08\x08"
+       LZHDR="\x00\x00\x00\x02\xff"
 
        off=`get_offset "$image" $GZHDR1`
        [ "$?" != "0" ] && off="-1"
@@ -139,6 +141,13 @@ get_image() {
                return
        fi
 
+       off=`get_offset "$image" $LZHDR`
+       [ "$?" != "0" ] && off="-1"
+       if [ "$off" -ne "-1" ]; then
+               (dd ibs="$[off-1]" skip=1 count=0 && dd bs=512k) < "$image" 2>/dev/null | lzcat 2>/dev/null
+               return
+       fi
+
        echo "ERROR: Unable to extract kernel image." 2>&1
        exit 1
 }