| #! /bin/sh |
| ## duplicate DaveG's ident-scan thingie using netcat. Oooh, he'll be pissed. |
| ## args: target port [port port port ...] |
| ## hose stdout *and* stderr together. |
| ## |
| ## advantages: runs slower than ident-scan, giving remote inetd less cause |
| ## for alarm, and only hits the few known daemon ports you specify. |
| ## disadvantages: requires numeric-only port args, the output sleazitude, |
| ## and won't work for r-services when coming from high source ports. |
| |
| case "${2}" in |
| "" ) echo needs HOST and at least one PORT ; exit 1 ;; |
| esac |
| |
| # ping 'em once and see if they *are* running identd |
| nc -z -w 9 "$1" 113 || { echo "oops, $1 isn't running identd" ; exit 0 ; } |
| |
| # generate a randomish base port |
| RP=`expr $$ % 999 + 31337` |
| |
| TRG="$1" |
| shift |
| |
| while test "$1" ; do |
| nc -v -w 8 -p ${RP} "$TRG" ${1} < /dev/null > /dev/null & |
| PROC=$! |
| sleep 3 |
| echo "${1},${RP}" | nc -w 4 -r "$TRG" 113 2>&1 |
| sleep 2 |
| # does this look like a lamer script or what... |
| kill -HUP $PROC |
| RP=`expr ${RP} + 1` |
| shift |
| done |
| |
