logger.sh

#!/bin/sh
VERSION=1.2
PORT=514
PRIORITY=14

sendmsg() {
    echo "<$PRIORITY>$(date +'%b %e %T') $HOSTNAME $USER: $*" | nc -w 5 $SERVER $PORT 2> /dev/null
}

MSG=
j=
for i in $* ; do
    if [ "$j" == "-n" ] ; then
        SERVER=$i
    elif [ "$j" == "-P" ] ; then
        PORT=$i
    elif [ "$j" == "-p" ] ; then
        PRIORITY=$i
    elif [ "${i:0:1}" != "-" ] ; then
        if [ -z "$MSG" ] ; then
            MSG="$i"
        else
            MSG="$MSG $i"
        fi
    fi
    j=$i
done
if [ -z "$SERVER" ] ; then
    echo "BusyBox-friendly syslog sender v$VERSION"
    echo "Author: Branislav Vartik"
    echo
    echo "Usage: $0 -n <server> [-P <port>] [-p <priority>] [message]"
    echo
    echo "Defaults: message is read from STDIN"
    echo "          port: 514 (only TCP due the BusyBox's NetCat limitations)"
    echo "          priority: 14 (user.info)"
else
    [ -z "$USER" ] && USER=$LOGNAME
    [ -z "$HOSTNAME" ] && HOSTNAME=$(grep -m 1 ^ /etc/hostname)
    if [ -z "$MSG" ] ; then
        # stdin which can be without last newline
        grep ^ | while read i ; do
            sendmsg "$i"
        done
    else
        sendmsg "$MSG"
    fi
fi