go_hummingbird

#!/bin/bash

# This line is just here so that output from tcpdump does not conflict with entering the password for sudo
# but it also serves as a good introduction to the script
sudo echo "Go Hummingbird!"

# Determine the network interface
INTERFACE=$(echo $INTERFACE)
if [[ -z "${INTERFACE}" ]]; then
    if [[ "${OSTYPE}" == "linux-gnu" ]]; then
        #INTERFACE=$(ip route get 8.8.8.8 | awk '{ print $(NF-2); exit }')
        INTERFACE=$(ip route get 8.8.8.8 | cut -f5 -d' ' | head -1)
    elif [[ "${OSTYPE}" == "darwin"* ]]; then
        INTERFACE=$(route get 8.8.8.8 | grep interface | awk '{ print $NF; exit }')
    else
        echo "This script does not support this operating system. An override of INTERFACE is required."
        exit 1
    fi
    export INTERFACE
fi

# Use Python version with pygame installed
PYGAMEPYTHON=$(echo $PYGAMEPYTHON)
if [[ -z "${PYGAMEPYTHON}" ]]; then
    PYGAMEPYTHON="python"
fi

# Pipe tcpdump output to Hummingbird
sudo tcpdump -I -e -i ${INTERFACE} 2>> tcpdump_error.log | ${PYGAMEPYTHON} hummingbird.py