using System.IO;

using Org.BouncyCastle.Utilities.IO;

namespace Org.BouncyCastle.Asn1
{
    internal abstract class LimitedInputStream
        : BaseInputStream
    {
        protected readonly Stream _in;
		private int _limit;

        internal LimitedInputStream(
            Stream	inStream,
			int		limit)
        {
            this._in = inStream;
			this._limit = limit;
        }

	    internal virtual int GetRemaining()
	    {
	        // TODO: maybe one day this can become more accurate
	        return _limit;
	    }

		protected virtual void SetParentEofDetect(bool on)
        {
            if (_in is IndefiniteLengthInputStream)
            {
                ((IndefiniteLengthInputStream)_in).SetEofOn00(on);
            }
        }
    }
}