Anonymous for MacOS (Modify: Mac Address & Computer Name)

anonymous.sh

OUTPUT_MAC_ADDRESS=""
OUTPUT_COMPUTER_NAME=""

function IsExistingInterface() {
    OUTPUT=$(echo $(ifconfig $1 2>&1))

    if [[ ! "$OUTPUT" == *"does not exist"* ]]; then
        true
    else
        false
    fi
}

function GetDefaultMacAddress() {
    echo $(networksetup -getmacaddress $1 | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}')
}

function GetCurrentMacAddress() {
    echo $(ifconfig $1 | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}')
}

function RandomMacAddress() {
    echo $(hexdump -n 6 -ve '1/1 "%.2x "' /dev/random | awk -v a="2,6,a,e" -v r="$RANDOM" 'BEGIN{srand(r);}NR==1{split(a,b,",");r=int(rand()*4+1);printf "%s%s:%s:%s:%s:%s:%s\n",substr($1,0,1),b[r],$2,$3,$4,$5,$6}')
}

function ChangeMacAddress() {
    if IsExistingInterface $1; then
        IS_SET=false

        if [[ "$2" == "random" ]]; then
            NEW_MAC_ADDRESS=$(RandomMacAddress)
        else
            IS_SET=true
            NEW_MAC_ADDRESS=$2
        fi

        DEFAULT_MAC_ADDRESS=$(GetDefaultMacAddress $1)
        CURRENT_MAC_ADDRESS=$(GetCurrentMacAddress $1)

        echo -e "Default Mac Address:\t$DEFAULT_MAC_ADDRESS"
        echo -e "Current Mac Address:\t$CURRENT_MAC_ADDRESS"
        echo -e "New Mac Address:\t$NEW_MAC_ADDRESS"

        COUNTER=0

        while [[ "$CURRENT_MAC_ADDRESS" != "$NEW_MAC_ADDRESS" ]]; do
            if [[ $(echo $(networksetup -getairportpower $1 2>&1)) == *"On"* ]] && [[ "$1" == "en0" ]]; then
                networksetup -setairportpower $1 off
            fi

            if [[ "$1" == "en0" ]]; then
                networksetup -setairportpower $1 on
            fi

            ifconfig $1 ether $NEW_MAC_ADDRESS

            sleep 0.5

            CURRENT_MAC_ADDRESS=$(GetCurrentMacAddress $1)

            if [[ "$1" == "en0" ]]; then
                networksetup -setairportpower $1 off
            fi

            sleep 0.5

            echo -n "*"

            let COUNTER=COUNTER+1

            if [ $(expr $COUNTER % 3) == 0 ]; then
                if [ ! "$IS_SET" = true ]; then
                    NEW_MAC_ADDRESS=$(RandomMacAddress)
                fi

                echo -e "\nNew Mac Address:\t$NEW_MAC_ADDRESS"
            fi
        done

        if [ $1 == "en0" ]; then
            networksetup -setairportpower $1 on
        fi

        echo -e "\nMac Address:\t\t$NEW_MAC_ADDRESS"

        OUTPUT_MAC_ADDRESS=$NEW_MAC_ADDRESS
    else
        echo -e "The interface $1 does not exist."
    fi
}

function RandomComputerName() {
    echo $(cat /dev/urandom | env LC_CTYPE=C tr -dc a-zA-Z0-9 | head -c 33)
}

function ChangeComputerName() {
    echo -e "Current Computer Name:\t$(scutil --get ComputerName)"
    echo -e "Current Host Name:\t$(scutil --get HostName)"
    echo -e "Current Localhost Name:\t$(scutil --get LocalHostName)"

    if [[ "$1" == "random" ]]; then
        COMPUTER_NAME=$(RandomComputerName)
    else
        COMPUTER_NAME=$1
    fi

    scutil --set ComputerName $COMPUTER_NAME
    scutil --set HostName $COMPUTER_NAME
    scutil --set LocalHostName $COMPUTER_NAME

    echo -e "Computer Name:\t\t$(scutil --get ComputerName)"
    echo -e "Host Name:\t\t$(scutil --get HostName)"
    echo -e "Localhost Name:\t\t$(scutil --get LocalHostName)"

    OUTPUT_COMPUTER_NAME=$COMPUTER_NAME
}

function _usage() {
    cat <<EOF
Usage: anonymous <[options]>
Options:
    -i   --interface          Set network interface for change mac address (en0, en1)
    -m   --mac-address        Set new or random mac address (random, 00:00:00:00:00:00)
    -c   --computer-name      Set new or random computer name (random, NewComputerName)
    -s   --set                Set compile value
    -q   --qrcode             Show QR code and detail
    -p   --print              Show detail
    --verbose                 Show verbose
    --help                    Show help
EOF
}

[ $# = 0 ] && _usage "  >>>>>>>> no options given "

OPT_ENABLED_VERBOSE=false
OPT_ENABLED_SET=false
OPT_INTERFACE=""
OPT_ENABLED_MAC_ADDRESS=false
OPT_MAC_ADDRESS=""
OPT_ENABLED_COMPUTER_NAME=false
OPT_COMPUTER_NAME=""
OPT_ENABLED_QRCODE=false
OPT_ENABLED_PRINT=false

while getopts ":i:m:c:-:pqs" OPTION; do
    if [ "$OPT_ENABLED_VERBOSE" = true ]; then
        echo -e "$OPTION - $OPTARG\n"
    fi

    case "$OPTION" in
    i) OPT_INTERFACE="$OPTARG" ;;
    m)
        OPT_ENABLED_MAC_ADDRESS=true
        OPT_MAC_ADDRESS="$OPTARG"
        ;;
    c)
        OPT_ENABLED_COMPUTER_NAME=true
        OPT_COMPUTER_NAME="$OPTARG"
        ;;
    s) OPT_ENABLED_SET=true ;;
    q) OPT_ENABLED_QRCODE=true ;;
    p) OPT_ENABLED_PRINT=true ;;
    -)
        [ $OPTIND -ge 1 ] && optind=$(expr $OPTIND - 1) || optind=$OPTIND
        eval OPTION="\$$optind"
        OPTARG=$(echo $OPTION | cut -d'=' -f2)
        OPTION=$(echo $OPTION | cut -d'=' -f1)

        if [ "$OPT_ENABLED_VERBOSE" = true ]; then
            echo -e "$OPTION - $OPTARG\n"
        fi

        case $OPTION in
        --interface) OPT_INTERFACE="$OPTARG" ;;
        --mac-address)
            OPT_ENABLED_MAC_ADDRESS=true
            OPT_MAC_ADDRESS="$OPTARG"
            ;;
        --computer-name)
            OPT_ENABLED_COMPUTER_NAME=true
            OPT_COMPUTER_NAME="$OPTARG"
            ;;
        --set) OPT_ENABLED_SET=true ;;
        --qrcode) OPT_ENABLED_QRCODE=true ;;
        --verbose) OPT_ENABLED_VERBOSE=true ;;
        --print) OPT_ENABLED_PRINT=true ;;
        --help) _usage ;;
        esac
        OPTIND=1
        shift
        ;;
    esac
done

if [ "$OPT_ENABLED_VERBOSE" = true ]; then
    echo "OPT_ENABLED_VERBOSE: "$OPT_ENABLED_VERBOSE
    echo "OPT_ENABLED_SET: "$OPT_ENABLED_SET
    echo "OPT_INTERFACE: "$OPT_INTERFACE
    echo "OPT_ENABLED_MAC_ADDRESS: "$OPT_ENABLED_MAC_ADDRESS
    echo "OPT_MAC_ADDRESS: "$OPT_MAC_ADDRESS
    echo "OPT_ENABLED_COMPUTER_NAME: "$OPT_ENABLED_COMPUTER_NAME
    echo "OPT_COMPUTER_NAME: "$OPT_COMPUTER_NAME
    echo "OPT_ENABLED_QRCODE: "$OPT_ENABLED_QRCODE
    echo "OPT_ENABLED_PRINT: "$OPT_ENABLED_PRINT
fi

LINE="========================================================"

if [ "$OPT_ENABLED_MAC_ADDRESS" = true ]; then
    if [ "$OPT_ENABLED_SET" = true ] && [ "$EUID" -ne 0 ]; then
        echo "Please run as root"
        exit
    fi

    if [ ! -z "$OPT_INTERFACE" ] && [ ! -z "$OPT_MAC_ADDRESS" ] && [ "$OPT_ENABLED_SET" = true ]; then
        echo -e "$LINE"

        ChangeMacAddress "$OPT_INTERFACE" "$OPT_MAC_ADDRESS"
    fi

    if [ ! "$OPT_ENABLED_SET" = true ]; then
        OUTPUT_MAC_ADDRESS=$(RandomMacAddress)
    fi

    if [ "$OPT_ENABLED_QRCODE" = true ]; then
        OPT_ENABLED_PRINT=true

        echo -e "$LINE"

        if ! [ -x "$(command -v qrencode)" ]; then
            echo "Error: qrencode is not installed."
        else
            qrencode -t UTF8 $OUTPUT_MAC_ADDRESS
        fi
    fi

    if [ "$OPT_ENABLED_PRINT" = true ]; then
        echo -e "Mac Address:\t\t$OUTPUT_MAC_ADDRESS (${#OUTPUT_MAC_ADDRESS})"
    fi

    if [ "$OPT_ENABLED_QRCODE" = true ]; then
        echo -e "$LINE"
    fi
fi

if [ "$OPT_ENABLED_COMPUTER_NAME" = true ]; then
    if [ "$OPT_ENABLED_SET" = true ] && [ "$EUID" -ne 0 ]; then
        echo "Please run as root"
        exit
    fi

    if [ ! -z "$OPT_COMPUTER_NAME" ] && [ "$OPT_ENABLED_SET" = true ]; then
        echo -e "$LINE"

        ChangeComputerName "$OPT_COMPUTER_NAME"
    fi

    if [ ! "$OPT_ENABLED_SET" = true ]; then
        OUTPUT_COMPUTER_NAME=$(RandomComputerName)
    fi

    if [ "$OPT_ENABLED_QRCODE" = true ]; then
        OPT_ENABLED_PRINT=true

        echo -e "$LINE"

        if ! [ -x "$(command -v qrencode)" ]; then
            echo "Error: qrencode is not installed."
        else
            qrencode -t UTF8 $OUTPUT_COMPUTER_NAME
        fi
    fi

    if [ "$OPT_ENABLED_PRINT" = true ]; then
        echo -e "Computer Name:\t\t$OUTPUT_COMPUTER_NAME (${#OUTPUT_COMPUTER_NAME})"
    fi

    if [ "$OPT_ENABLED_QRCODE" = true ]; then
        echo -e "$LINE"
    fi
fi

if [ "$OPT_ENABLED_VERBOSE" = true ]; then
    echo "OPT_ENABLED_VERBOSE: "$OPT_ENABLED_VERBOSE
    echo "OPT_ENABLED_SET: "$OPT_ENABLED_SET
    echo "OPT_INTERFACE: "$OPT_INTERFACE
    echo "OPT_ENABLED_MAC_ADDRESS: "$OPT_ENABLED_MAC_ADDRESS
    echo "OPT_MAC_ADDRESS: "$OPT_MAC_ADDRESS
    echo "OPT_ENABLED_COMPUTER_NAME: "$OPT_ENABLED_COMPUTER_NAME
    echo "OPT_COMPUTER_NAME: "$OPT_COMPUTER_NAME
    echo "OPT_ENABLED_QRCODE: "$OPT_ENABLED_QRCODE
    echo "OPT_ENABLED_PRINT: "$OPT_ENABLED_PRINT
fi