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62 lines (52 loc) · 1.89 KB
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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
namespace Process.NET.Patterns
{
public class DwordPatternData : IMemoryPattern
{
private readonly byte[] _bytes;
private readonly string _mask;
public readonly string PatternText;
public DwordPatternData(string pattern) : this(pattern, 0, PatternScannerAlgorithm.Naive) { }
public DwordPatternData(string pattern, int offset) : this(pattern, offset, PatternScannerAlgorithm.Naive) { }
public DwordPatternData(string pattern, PatternScannerAlgorithm algorithm) : this(pattern, 0, algorithm) { }
public DwordPatternData(string pattern, int offset, PatternScannerAlgorithm algorithm)
{
PatternText = pattern;
PatternType = MemoryPatternType.Data;
Offset = offset;
Algorithm = algorithm;
_bytes = GetBytesFromDwordPattern(pattern);
_mask = GetMaskFromDwordPattern(pattern);
}
public IList<byte> GetBytes()
{
return _bytes;
}
public string GetMask()
{
return _mask;
}
public int Offset { get; }
public MemoryPatternType PatternType { get; }
public PatternScannerAlgorithm Algorithm { get; }
private static string GetMaskFromDwordPattern(string pattern)
{
var mask = pattern.Split(' ').Select(s => s.Contains('?') ? "?" : "x");
return string.Concat(mask);
}
private static byte[] GetBytesFromDwordPattern(string pattern)
{
return
pattern.Split(' ')
.Select(s => s.Contains('?') ? (byte) 0 : byte.Parse(s, NumberStyles.HexNumber))
.ToArray();
}
public override string ToString()
{
return PatternText;
}
}
}