X-Git-Url: http://ftp.carnet.hr/pub/carnet-debian/scm?a=blobdiff_plain;f=src%2Fexternal%2Fzlib-1.2.8%2Fcontrib%2Fdotzlib%2FDotZLib%2FChecksumImpl.cs;fp=src%2Fexternal%2Fzlib-1.2.8%2Fcontrib%2Fdotzlib%2FDotZLib%2FChecksumImpl.cs;h=0000000000000000000000000000000000000000;hb=3f728675941dc69d4e544d3a880a56240a6e394a;hp=788b2fcecedb07801588b0e7f6be89b66e4e1e72;hpb=927951d1c1ad45ba9e7325f07d996154a91c911b;p=ossec-hids.git diff --git a/src/external/zlib-1.2.8/contrib/dotzlib/DotZLib/ChecksumImpl.cs b/src/external/zlib-1.2.8/contrib/dotzlib/DotZLib/ChecksumImpl.cs deleted file mode 100644 index 788b2fc..0000000 --- a/src/external/zlib-1.2.8/contrib/dotzlib/DotZLib/ChecksumImpl.cs +++ /dev/null @@ -1,202 +0,0 @@ -// -// © Copyright Henrik Ravn 2004 -// -// Use, modification and distribution are subject to the Boost Software License, Version 1.0. -// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -using System; -using System.Runtime.InteropServices; -using System.Text; - - -namespace DotZLib -{ - #region ChecksumGeneratorBase - /// - /// Implements the common functionality needed for all s - /// - /// - public abstract class ChecksumGeneratorBase : ChecksumGenerator - { - /// - /// The value of the current checksum - /// - protected uint _current; - - /// - /// Initializes a new instance of the checksum generator base - the current checksum is - /// set to zero - /// - public ChecksumGeneratorBase() - { - _current = 0; - } - - /// - /// Initializes a new instance of the checksum generator basewith a specified value - /// - /// The value to set the current checksum to - public ChecksumGeneratorBase(uint initialValue) - { - _current = initialValue; - } - - /// - /// Resets the current checksum to zero - /// - public void Reset() { _current = 0; } - - /// - /// Gets the current checksum value - /// - public uint Value { get { return _current; } } - - /// - /// Updates the current checksum with part of an array of bytes - /// - /// The data to update the checksum with - /// Where in data to start updating - /// The number of bytes from data to use - /// The sum of offset and count is larger than the length of data - /// data is a null reference - /// Offset or count is negative. - /// All the other Update methods are implmeneted in terms of this one. - /// This is therefore the only method a derived class has to implement - public abstract void Update(byte[] data, int offset, int count); - - /// - /// Updates the current checksum with an array of bytes. - /// - /// The data to update the checksum with - public void Update(byte[] data) - { - Update(data, 0, data.Length); - } - - /// - /// Updates the current checksum with the data from a string - /// - /// The string to update the checksum with - /// The characters in the string are converted by the UTF-8 encoding - public void Update(string data) - { - Update(Encoding.UTF8.GetBytes(data)); - } - - /// - /// Updates the current checksum with the data from a string, using a specific encoding - /// - /// The string to update the checksum with - /// The encoding to use - public void Update(string data, Encoding encoding) - { - Update(encoding.GetBytes(data)); - } - - } - #endregion - - #region CRC32 - /// - /// Implements a CRC32 checksum generator - /// - public sealed class CRC32Checksum : ChecksumGeneratorBase - { - #region DLL imports - - [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] - private static extern uint crc32(uint crc, int data, uint length); - - #endregion - - /// - /// Initializes a new instance of the CRC32 checksum generator - /// - public CRC32Checksum() : base() {} - - /// - /// Initializes a new instance of the CRC32 checksum generator with a specified value - /// - /// The value to set the current checksum to - public CRC32Checksum(uint initialValue) : base(initialValue) {} - - /// - /// Updates the current checksum with part of an array of bytes - /// - /// The data to update the checksum with - /// Where in data to start updating - /// The number of bytes from data to use - /// The sum of offset and count is larger than the length of data - /// data is a null reference - /// Offset or count is negative. - public override void Update(byte[] data, int offset, int count) - { - if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); - if ((offset+count) > data.Length) throw new ArgumentException(); - GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned); - try - { - _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count); - } - finally - { - hData.Free(); - } - } - - } - #endregion - - #region Adler - /// - /// Implements a checksum generator that computes the Adler checksum on data - /// - public sealed class AdlerChecksum : ChecksumGeneratorBase - { - #region DLL imports - - [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] - private static extern uint adler32(uint adler, int data, uint length); - - #endregion - - /// - /// Initializes a new instance of the Adler checksum generator - /// - public AdlerChecksum() : base() {} - - /// - /// Initializes a new instance of the Adler checksum generator with a specified value - /// - /// The value to set the current checksum to - public AdlerChecksum(uint initialValue) : base(initialValue) {} - - /// - /// Updates the current checksum with part of an array of bytes - /// - /// The data to update the checksum with - /// Where in data to start updating - /// The number of bytes from data to use - /// The sum of offset and count is larger than the length of data - /// data is a null reference - /// Offset or count is negative. - public override void Update(byte[] data, int offset, int count) - { - if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException(); - if ((offset+count) > data.Length) throw new ArgumentException(); - GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned); - try - { - _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count); - } - finally - { - hData.Free(); - } - } - - } - #endregion - -} \ No newline at end of file