CRC32.cs

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using System;
using System.IO;
using System.Runtime.InteropServices;
using Cpp2IlInjected;
 
namespace Ionic.Crc
{
    // Token: 0x0200005C RID: 92
    [Guid("ebc25cf6-9120-4283-b972-0e5520d0000C")]
    [ComVisible(true)]
    public class CRC32
    {
        // Token: 0x170000F5 RID: 245
        // (get) Token: 0x060003F8 RID: 1016 RVA: 0x0000F40C File Offset: 0x0000D60C
        public long TotalBytesRead
        {
            get
            {
                return this._TotalBytesRead;
            }
        }
 
        // Token: 0x170000F6 RID: 246
        // (get) Token: 0x060003F9 RID: 1017 RVA: 0x0000F420 File Offset: 0x0000D620
        public int Crc32Result
        {
            get
            {
                /*
An exception occurred when decompiling this method (060003F9)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 Ionic.Crc.CRC32::get_Crc32Result()
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    Block_0:
    stloc:uint32(var_0_06, ldfld:uint32(CRC32::_register, ldloc:CRC32(this)))
}
 
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1683
*/;
            }
        }
 
        // Token: 0x060003FA RID: 1018 RVA: 0x0000F434 File Offset: 0x0000D634
        public int GetCrc32(Stream input)
        {
            int num;
            return num;
        }
 
        // Token: 0x060003FB RID: 1019 RVA: 0x0000F444 File Offset: 0x0000D644
        public int GetCrc32AndCopy(Stream input, Stream output)
        {
            /*
An exception occurred when decompiling this method (060003FB)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 Ionic.Crc.CRC32::GetCrc32AndCopy(System.IO.Stream,System.IO.Stream)
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    IL_001D:
    stloc:int64(var_2_23, ldfld:int64(CRC32::_TotalBytesRead, ldloc:CRC32(this)))
    stfld:int64(CRC32::_TotalBytesRead, ldloc:CRC32(this), ldloc:int64(var_2_23))
    stloc:uint32(var_3_31, ldfld:uint32(CRC32::_register, ldloc:CRC32(this)))
}
 
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1683
*/;
        }
 
        // Token: 0x060003FC RID: 1020 RVA: 0x0000F484 File Offset: 0x0000D684
        public int ComputeCrc32(int W, byte B)
        {
            /*
An exception occurred when decompiling this method (060003FC)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 Ionic.Crc.CRC32::ComputeCrc32(System.Int32,System.Byte)
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    Block_0:
    stloc:uint32[](var_0_06, ldfld:uint32[](CRC32::crc32Table, ldloc:CRC32(this)))
}
 
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1683
*/;
        }
 
        // Token: 0x060003FD RID: 1021 RVA: 0x0000F498 File Offset: 0x0000D698
        internal int _InternalComputeCrc32(uint W, byte B)
        {
            /*
An exception occurred when decompiling this method (060003FD)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 Ionic.Crc.CRC32::_InternalComputeCrc32(System.UInt32,System.Byte)
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    Block_0:
    stloc:uint32[](var_0_06, ldfld:uint32[](CRC32::crc32Table, ldloc:CRC32(this)))
}
 
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1683
*/;
        }
 
        // Token: 0x060003FE RID: 1022 RVA: 0x0000F4AC File Offset: 0x0000D6AC
        public void SlurpBlock(byte[] block, int offset, int count)
        {
            while (block == null)
            {
            }
            bool flag = this.reverseBits;
            uint register = this._register;
            if (flag)
            {
                uint[] array = this.crc32Table;
                return;
            }
            uint[] array2 = this.crc32Table;
            this._register = register;
            long totalBytesRead = this._TotalBytesRead;
            this._TotalBytesRead = totalBytesRead;
        }
 
        // Token: 0x060003FF RID: 1023 RVA: 0x0000F4F4 File Offset: 0x0000D6F4
        public void UpdateCRC(byte b)
        {
            bool flag = this.reverseBits;
            uint register = this._register;
            if (flag)
            {
                uint[] array = this.crc32Table;
                return;
            }
            uint[] array2 = this.crc32Table;
            this._register = register;
        }
 
        // Token: 0x06000400 RID: 1024 RVA: 0x0000F528 File Offset: 0x0000D728
        public void UpdateCRC(byte b, int n)
        {
            bool flag = this.reverseBits;
            uint[] array = this.crc32Table;
            uint register = this._register;
            this._register = register;
        }
 
        // Token: 0x06000401 RID: 1025 RVA: 0x00002122 File Offset: 0x00000322
        private static uint ReverseBits(uint data)
        {
            throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
        }
 
        // Token: 0x06000402 RID: 1026 RVA: 0x00002122 File Offset: 0x00000322
        private static byte ReverseBits(byte data)
        {
            throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
        }
 
        // Token: 0x06000403 RID: 1027 RVA: 0x0000F554 File Offset: 0x0000D754
        private void GenerateLookupTable()
        {
            bool flag = this.reverseBits;
        }
 
        // Token: 0x06000404 RID: 1028 RVA: 0x0000F588 File Offset: 0x0000D788
        private uint gf2_matrix_times(uint[] matrix, uint vec)
        {
            /*
An exception occurred when decompiling this method (06000404)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.UInt32 Ionic.Crc.CRC32::gf2_matrix_times(System.UInt32[],System.UInt32)
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    IL_0005:
    brtrue(IL_0005, ldloc:uint32[exp:bool](vec))
}
 
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1683
*/;
        }
 
        // Token: 0x06000405 RID: 1029 RVA: 0x0000F59C File Offset: 0x0000D79C
        private void gf2_matrix_square(uint[] square, uint[] mat)
        {
        }
 
        // Token: 0x06000406 RID: 1030 RVA: 0x0000F5AC File Offset: 0x0000D7AC
        public void Combine(int crc, int length)
        {
            if (length != 0)
            {
                uint num = this.dwPolynomial;
                uint register = this._register;
                return;
            }
        }
 
        // Token: 0x06000407 RID: 1031 RVA: 0x0000F610 File Offset: 0x0000D810
        public CRC32()
        {
            this.dwPolynomial = 33568U;
            this.GenerateLookupTable();
        }
 
        // Token: 0x06000408 RID: 1032 RVA: 0x0000F634 File Offset: 0x0000D834
        public CRC32(bool reverseBits)
        {
            this.dwPolynomial = 33568U;
            this.GenerateLookupTable();
        }
 
        // Token: 0x06000409 RID: 1033 RVA: 0x0000F658 File Offset: 0x0000D858
        public CRC32(int polynomial, bool reverseBits)
        {
            this.dwPolynomial = (uint)polynomial;
            this.GenerateLookupTable();
        }
 
        // Token: 0x0600040A RID: 1034 RVA: 0x0000F678 File Offset: 0x0000D878
        public void Reset()
        {
        }
 
        // Token: 0x0400031B RID: 795
        private const int BUFFER_SIZE = 8192;
 
        // Token: 0x0400031C RID: 796
        private uint dwPolynomial;
 
        // Token: 0x0400031D RID: 797
        private long _TotalBytesRead;
 
        // Token: 0x0400031E RID: 798
        private bool reverseBits;
 
        // Token: 0x0400031F RID: 799
        private uint[] crc32Table;
 
        // Token: 0x04000320 RID: 800
        private uint _register;
    }
}