#!/bin/sh -e

getrand()
{
    local size=$1
    dd if=/dev/random bs=$size count=1 2>/dev/null | hexdump -ve '"%02x"'
}

[ -n "$1" ] || {
    cat <<EOF
Example script for creating new user peer for GoVPN.
It just creates directory with random peer ID, random key,
saves username in it and creates dummy up.sh executable script.

Usage: $0 <username>
EOF
    exit 1
}

username=$1
peerid=$(getrand 16)
umask 077
mkdir -p peers/$peerid
getrand 32 > peers/$peerid/key
echo $username > peers/$peerid/name
echo '#!/bin/sh' > peers/$peerid/up.sh
chmod 700 peers/$peerid/up.sh
echo $peerid