sharp-chat/SharpChat/Packet/ForceDisconnectPacket.cs

using System;

namespace SharpChat.Packet {
    public class ForceDisconnectPacket : ServerPacket {
        private readonly long Expires;

        public ForceDisconnectPacket() {}

        public ForceDisconnectPacket(DateTimeOffset expires) {
            Expires = expires.Year >= 2100 ? -1 : expires.ToUnixTimeSeconds();
        }

        public override string Pack() {
            if(Expires != 0)
                return string.Format("9\t1\t{0}", Expires);

            return "9\t0";
        }
    }
}