################################################################################
# Function:     create_temp_dir
# Description:  Creates a temporary directory
# Arguments:    $1 :- temporary directory name prefix (required)
# Outputs:      Prints name of the created temporary directory
function create_temp_dir {
    local prefix="${1:?'create_temp_dir requires a 1st argument: prefix'}"
    local temp_dir=''

    until [[ -n "${temp_dir}" && ! -d "${temp_dir}" ]]; do
        temp_dir="/tmp/${prefix}${RANDOM}${RANDOM}${RANDOM}"
    done

    if ! sudo mkdir --parents --mode 0700 "${temp_dir}"; then
        echo "FATAL: Unable to create temp dir: ${temp_dir}: $?" >&2
        exit 1
    fi
    echo "${temp_dir}"
    trap 'rm --force --recursive "${temp_dir}"' ABRT EXIT HUP INT QUIT
}