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41 lines
1.4 KiB
C#
41 lines
1.4 KiB
C#
using System;
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using System.Diagnostics;
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namespace DotNetCTFDumper.Utils
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{
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public static class Decompressor
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{
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public static byte[] Decompress(ByteReader exeReader, out int decompressed)
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{
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Int32 decompSize = exeReader.ReadInt32();
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Int32 compSize = exeReader.ReadInt32();
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decompressed = decompSize;
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return decompress_block(exeReader, compSize, decompSize);
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}
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public static ByteReader DecompressAsReader(ByteReader exeReader, out int decompressed)
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{
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Int32 decompSize = exeReader.ReadInt32();
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Int32 compSize = exeReader.ReadInt32();
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byte[] compressedData = exeReader.ReadBytes(compSize);
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byte[] actualData = Ionic.Zlib.ZlibStream.UncompressBuffer(compressedData);
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Debug.Assert(actualData.Length == decompSize);
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decompressed = decompSize;
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return new ByteReader(actualData);
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}
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public static byte[] decompress_block(ByteReader reader, int size, int decompSize)
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{
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byte[] compressedData = reader.ReadBytes(size);
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byte[] actualData = Ionic.Zlib.ZlibStream.UncompressBuffer(compressedData);
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return actualData;
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}
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public static ByteReader decompress_asReader(ByteReader imageData, int v, int decompressedSize)
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{
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return new ByteReader(decompress_block(imageData, v, decompressedSize));
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}
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}
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} |