#!/bin/bash

set -e
#set -x

if [ $# -eq 3 ]; then
    if ! [ "${1}" -ge "1000" ] ; then
        # avoid the risk of passing other options to mount, and enforce uid >= 1000
        echo "$1 is not a valid uid (>= 1000)"
        exit 1
    fi
    # uid= only works on a vfat FS. What should we do if we get an ext* FS ?
    # the main problem is that we need the rw rights on the dest key.
    # It is not possible to ensure it on a non-vfat USB key.
    mount -t vfat -o user,noexec,nosuid,nodev,rw,uid="${1}",utf8=1 "${2}" "${3}"
    exit 0
else
    echo 'Invalid number of arguments.'
    exit 1
fi