Some functions for network fun

network.zsh

# sort -V can also work
function ipsort {
    sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n
}

function grep4 {
    grep -oE "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b"
}

function grep6 {
    grep -oE "\b((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*\b"
}

function strip_proto {
    echo $1 | sed -E -e "s~(https?|ftp|ssh|rsync){0,1}://~~" -e "s~/.*~~"
}

function host {
    HOST=$(strip_proto $1)
    shift

    command host "${HOST}" "$@"
}

function dig {
    host=$(strip_proto $1)
    shift

    command dig "${host}" "$@"
}

function nslookup {
    host=$(strip_proto $1)
    shift

    command nslookup "${host}" "$@"
}

function ipwhois {
    host=$(strip_proto $1)


    if [[ $host =~ [0-9]{1,3}\.[0-9]{1,3}\. ]]; then
        local ip=$host
    else
        # Assuming this is a dns name
        local ip=$(dig +short $host)
    fi

    if [[ -z "${ip}" ]]; then
        return 1;
    fi

    echo "IP whois for ${ip}"
    command whois "${ip}" "$@"
}

# Taken from: https://github.com/twe4ked/dotfiles/blob/master/shell/functions/ping.sh
# Modified to pull out strip_proto func and improve proto list
function ping {
    HOST=$(strip_proto $1)
    shift

    command ping "$HOST" "$@"
}

# Pipe curl through pager
function cl {
    curl -ik "$@" | less
}

function whois {
    HOST=$(strip_proto $1)
    shift
    
    command whois "$HOST" "$@"
}