RtlpCopyExtendedContext

NTSTATUS __stdcall RtlpCopyExtendedContext(
        INT8 Operation,
        _CONTEXT_EX *Destination,
        _CONTEXT_EX *DestinationLayout,
        UINT64 ContextFlags,
        _CONTEXT_EX *Source,
        _CONTEXT_EX *SourceLayout){
  unsigned int v6; 
  char v9; 
  _CONTEXT_EX *v10; 
  _CONTEXT_EX *v11; 
  __int64 Offset; 
  __int64 v13; 
  _X86_NT5_CONTEXT *v14; 
  _X86_NT5_CONTEXT *v15; 
  NTSTATUS result; 

  v6 = ContextFlags;
  if( (ContextFlags & 0x27FFFF80) != 0x10000
    && (ContextFlags & 0x27FFFFA0) != 0x100000
    && (ContextFlags & 0x7FFFFF0) != 0x200000
    && (ContextFlags & 0x7FFFFE0) != 0x400000 )
  {
    return -1073741811;
  }
  v9 = 1;
  if( (ContextFlags & 0x100040) == 1048640 || (ContextFlags & 0x10040) == 65600 )
  {
    if( !KUSER_SHARED_DATA.XState.EnabledFeatures )
      return -1073741637;
    v9 = 3;
  }
  v10 = Source;
  v11 = Destination;
  if( DestinationLayout )
    v11 = DestinationLayout;
  if( SourceLayout )
    v10 = SourceLayout;
  Offset = v11->Legacy.Offset;
  v13 = v10->Legacy.Offset;
  if( (_DWORD)Offset != (_DWORD)v13 || v11->Legacy.Length < v10->Legacy.Length )
    return -1073741811;
  v14 = (_X86_NT5_CONTEXT *)((char *)&Destination->All + Offset);
  v15 = (_X86_NT5_CONTEXT *)((char *)&Source->All + v13);
  if( (v6 & 0x10000) != 0 )
  {
    RtlpCopyLegacyContextX86((unsigned __int8)Operation, v14, v6, v15);
  }
  else if( (v6 & 0x100000) != 0 )
  {
    RtlpCopyLegacyContextAmd64((unsigned __int8)Operation, v14, v6, v15);
  }
  else if( (v6 & 0x200000) != 0 )
  {
    RtlpCopyLegacyContextArm(Operation, (__int64)v14, v6, (__int64)v15);
  }
  else if( (v6 & 0x400000) != 0 )
  {
    RtlpCopyLegacyContextArm64(Operation, (__int64)v14, v6, (__int64)v15);
  }
  if( (v9 & 2) == 0 )
    return 0;
  result = RtlpCopyXStateChunk(Operation, Destination, v11, Source, v10);
  if( result >= 0 )
    return 0;
  return result;
}

Referenced by: