//@ts-check


const flags = {
    IFF_UP: 0x1,		/* Interface is up.  */
    IFF_BROADCAST: 0x2,	/* Broadcast address valid.  */
    IFF_DEBUG: 0x4,		/* Turn on debugging.  */
    IFF_LOOPBACK: 0x8,		/* Is a loopback net.  */
    IFF_POINTOPOINT: 0x10,	/* Interface is point-to-point link.  */
    IFF_NOTRAILERS: 0x20,	/* Avoid use of trailers.  */
    IFF_RUNNING: 0x40,		/* Resources allocated.  */
    IFF_NOARP: 0x80,		/* No address resolution protocol.  */
    IFF_PROMISC: 0x100,	/* Receive all packets.  */
    /* Not supported */
    IFF_ALLMULTI: 0x200,	/* Receive all multicast packets.  */
    IFF_MASTER: 0x400,		/* Master of a load balancer.  */
    IFF_SLAVE: 0x800,		/* Slave of a load balancer.  */
    IFF_MULTICAST: 0x1000,	/* Supports multicast.  */
    IFF_PORTSEL: 0x2000,	/* Can set media type.  */
    IFF_AUTOMEDIA: 0x4000,	/* Auto media select active.  */
    IFF_DYNAMIC: 0x8000	/* Dialup device with changing addresses.  */
}

/**
 * @param { string } interface
 * @param { number } flags
 * @return { number }
 */
function setFlags(interface, flags) {
    return ip.setFlags(interface, flags)
}

/**
 * @param { string } interface
 * @returns { number }
 */
function getFlags(interface) {
    return ip.getFlags(interface);
}

/**
 * @param { string } interface
 * @param { Uint8Array } address
 */
function setIpv4(interface, address) {
    if( address.length !== 4) {
        throw new Error('invalid address length');
    }
    ip.setIpv4(interface, address.join('.'));
}

module.exports = { setFlags, getFlags, setIpv4, flags }