#!/bin/sh

usage () {
	cat <<EOF>&2
Usage: ${0##*/} IP

Print the map of the network associated to the provided IP.
EOF
}

[ $# -ne 1 ] && usage && exit 1
[ "$1" = "-h" ] && usage && exit
[ "$1" = "--" ] && shift

## Network operations
if ! command -v nmap >/dev/null 2>&1; then
	echo >&2 "'nmap' not found"
	exit 1
fi

echo "$1"
for SCANIP in $( nmap -sL "$1" | grep -i "\([[:digit:]]\+\.\)\{3,\}[[:digit:]]\+" | awk '{print $5}' ); do
	sudo nmap -oX - -n -sT -T Normal -O -sR -I -F -P0 "$SCANIP"
	echo
done