--- /dev/null
+#! /bin/bash
+#
+# Copyright 2009 Stephen Gran <sgran@debian.org>
+# Copyright 2010 Peter Palfrader
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+usage(){
+ ret=$1
+ exit $ret
+}
+
+host="$1"
+if [ -z "$host" ] || [ "$host" = "-h" ] || [ "$host" = "--help" ]; then
+ echo >&2 "$0: Usage: $0 <host>"
+ usage 3
+fi
+
+ts=$(date -d 'now' +'%Y/%m/%d')
+file="/var/log/hosts/$host/$ts/syslog"
+if [ ! -e "$file" ]; then
+ # maybe we did not log anything today yet?
+ ts=$(date -d 'now - 1 hour' +'%Y/%m/%d')
+ file="/var/log/hosts/$host/$ts/syslog"
+fi
+
+if [ ! -e "$file" ]; then
+ echo "log file $file is missing"
+ exit 2
+fi
+
+if [ "$( date -d 'now - 60 minutes' +%s )" -gt "$(stat -c %Y "$file" )" ]; then
+ echo "log file $file is older than 60 minutes"
+ exit 2
+fi
+
+printf "log file %s OK: last changed %s\n" $file "$(stat -c %y $file)"