Well, this isn't a binary, but a script. What it does is just take the commands you pass to it and append it to 'su -c.'
I know it's dead simple but I wanted to bring this over to Android in an easy way, and I had free time
sudo [command] - run [command] as root sudo -b - use bash as root sudo -s - like -b, but with sh sudo -h - display the help message
Put it in /system/bin or /system/xbin, set perms to 755.