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Copy pathDwordPattern.cs
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59 lines (49 loc) · 1.65 KB
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using System.Collections.Generic;
using System.Globalization;
using System.Linq;
namespace Process.NET.Patterns
{
public class DwordPattern : IMemoryPattern
{
private readonly byte[] _bytes;
private readonly string _mask;
public readonly string PatternText;
public DwordPattern(string dwordPattern) : this(dwordPattern, PatternScannerAlgorithm.Naive) { }
public DwordPattern(string dwordPattern, PatternScannerAlgorithm algorithm)
{
PatternText = dwordPattern;
PatternType = MemoryPatternType.Function;
Offset = 0;
Algorithm = algorithm;
_bytes = GetBytesFromDwordPattern(dwordPattern);
_mask = GetMaskFromDwordPattern(dwordPattern);
}
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;
}
}
}