91 lines
2.3 KiB
C#
91 lines
2.3 KiB
C#
/*
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KeePass Password Safe - The Open-Source Password Manager
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Copyright (C) 2003-2012 Dominik Reichl <dominik.reichl@t-online.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using KeePassLib.Utility;
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namespace KeePassLib.Serialization
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{
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public sealed class BinaryReaderEx
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{
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private Stream m_s;
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private Encoding m_enc;
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private string m_strReadExcp;
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public string ReadExceptionText
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{
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get { return m_strReadExcp; }
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set { m_strReadExcp = value; }
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}
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private Stream m_sCopyTo = null;
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/// <summary>
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/// If this property is set to a non-null stream, all data that
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/// is read from the input stream is automatically written to
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/// the copy stream (before returning the read data).
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/// </summary>
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public Stream CopyDataTo
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{
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get { return m_sCopyTo; }
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set { m_sCopyTo = value; }
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}
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public BinaryReaderEx(Stream input, Encoding encoding,
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string strReadExceptionText)
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{
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if(input == null) throw new ArgumentNullException("input");
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m_s = input;
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m_enc = encoding;
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m_strReadExcp = strReadExceptionText;
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}
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public byte[] ReadBytes(int nCount)
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{
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try
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{
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byte[] pb = MemUtil.Read(m_s, nCount);
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if((pb == null) || (pb.Length != nCount))
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{
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if(m_strReadExcp != null) throw new IOException(m_strReadExcp);
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else throw new EndOfStreamException();
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}
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if(m_sCopyTo != null) m_sCopyTo.Write(pb, 0, pb.Length);
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return pb;
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}
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catch(Exception)
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{
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if(m_strReadExcp != null) throw new IOException(m_strReadExcp);
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else throw;
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}
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}
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public byte ReadByte()
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{
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byte[] pb = ReadBytes(1);
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return pb[0];
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}
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}
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}
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