#!/bin/bash

while getopts "g:n:h" ARG; do
    case "${ARG}" in
        g) 
            parse="gnmap"
            file="${OPTARG}"
            ;;
        n) 
            parse="nmap"
            file="${OPTARG}"
            ;;
    esac
done

if ! test "${parse}" || ! test "${file}"; then
    printf "%s\n" "usage: $(basename $0) -g <gnmap file> | -n <nmap file>"
    exit 1
fi

if ! test -f "${file}"; then
    printf "%s\n" "${file} is not a file, exiting"
    exit 1
fi

case "${parse}" in
    gnmap)
        cat $file | awk '/Host:/ {
            ip = $2
        }
        /\/open\/tcp\// {
            for (i = 1; i <= NF; i++) {
                if ($i ~ /^[0-9]+\/open\/tcp\//) {
                    print ip "|" $i
                }
            }
        }
        ' | sed 's/\/\+/\//g' | awk -F '/' '{print $1"|"$4}'
        ;;
    nmap)
        cat $file | grep -v ^\# | awk -F'[ /]+' '
            /Nmap scan report for/ {
                host = $5
            }
            /^[0-9]+\// {
                version = ""
                for (i = 5; i <= NF; i++) {
                    version = version $i " "
                }
                printf("%s|%s|%s|%s\n", host, $1, $4, version)
            }
        '
        ;;
esac