#!/bin/ksh

###########################################
# OpenBSD Automatic Patch Checker         #
# by david l goodrich <dlg@dorkzilla.org> #
# Updated Fri Jan 21 11:44:57 CST 2005    #
###########################################

ADMINISTRATOR="root@nowhere.gov"

NEWPATCHES=`mktemp -d`
OLDHASH=`mktemp`
NEWHASH=`mktemp`
DIFFERENCE=`mktemp`
cd $NEWPATCHES
ftp -V ftp://ftp.openbsd.org/pub/OpenBSD/patches/`uname -r`/common/\*.patch \
	> /dev/null
ftp -V ftp://ftp.openbsd.org/pub/OpenBSD/patches/`uname -r`/`machine`/\*.patch \
	> /dev/null
cd /usr/patches
md5 *.patch > $OLDHASH
cd $NEWPATCHES
md5 *.patch > $NEWHASH
diff $OLDHASH $NEWHASH \
	| grep ^\> \
	| sed s/"\> MD5 ("// \
	| sed s/") ="// \
	| awk '{print $2, "  ", $1}' > $DIFFERENCE
if [ -s $DIFFERENCE ]; then
        echo >> $DIFFERENCE
        hostname >> $DIFFERENCE
        uname -sr >> $DIFFERENCE
	cat $DIFFERENCE | mail -s patches\ for\ `hostname -s` $ADMINISTRATOR 
fi

rm -rf $NEWPATCHES $OLDHASH $NEWHASH $DIFFERENCE