88 lines
1.3 KiB
C#
88 lines
1.3 KiB
C#
using System;
|
|
using System.IO;
|
|
|
|
namespace Org.BouncyCastle.Utilities.IO;
|
|
|
|
public abstract class BaseInputStream : Stream
|
|
{
|
|
private bool closed;
|
|
|
|
public sealed override bool CanRead => !closed;
|
|
|
|
public sealed override bool CanSeek => false;
|
|
|
|
public sealed override bool CanWrite => false;
|
|
|
|
public sealed override long Length
|
|
{
|
|
get
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
}
|
|
|
|
public sealed override long Position
|
|
{
|
|
get
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
set
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
}
|
|
|
|
public override void Close()
|
|
{
|
|
closed = true;
|
|
base.Close();
|
|
}
|
|
|
|
public sealed override void Flush()
|
|
{
|
|
}
|
|
|
|
public override int Read(byte[] buffer, int offset, int count)
|
|
{
|
|
int num = offset;
|
|
try
|
|
{
|
|
int num2 = offset + count;
|
|
while (num < num2)
|
|
{
|
|
int num3 = ReadByte();
|
|
if (num3 != -1)
|
|
{
|
|
buffer[num++] = (byte)num3;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
catch (IOException)
|
|
{
|
|
if (num == offset)
|
|
{
|
|
throw;
|
|
}
|
|
}
|
|
return num - offset;
|
|
}
|
|
|
|
public sealed override long Seek(long offset, SeekOrigin origin)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
|
|
public sealed override void SetLength(long value)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
|
|
public sealed override void Write(byte[] buffer, int offset, int count)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
}
|