ExpParseSignatureName

NTSTATUS __stdcall ExpParseSignatureName(
        WCHAR *deviceName,
        UINT64 deviceNameCount,
        _GUID *diskSignature,
        UINT64 *partitionNumber,
        UINT64 *partitionStart,
        UINT64 *partitionSize,
        UINT8 *GPTpartition,
        UINT8 *longSignature){
  WCHAR v8; 
  unsigned int v9; 
  bool v11; 
  char v13; 
  UINT8 v14; 
  __int64 v15; 
  WCHAR v16; 
  UINT8 v17; 
  NTSTATUS result; 
  VOID **PoolWithTag; 
  UINT16 *v20; 
  NTSTATUS v21; 
  NTSTATUS v22; 
  __int64 v23; 
  VOID **v24; 
  int v25; 
  WCHAR *v26; 
  unsigned int v27; 
  __int64 v28; 
  __int64 v29; 
  int v30; 
  WCHAR *v31; 
  unsigned int v32; 
  __int64 v33; 
  int v34; 
  int v35; 
  WCHAR *v36; 
  unsigned int v37; 
  __int64 v38; 
  _UNICODE_STRING GuidString[4]; 

  v8 = *deviceName;
  v9 = deviceNameCount;
  v11 = *deviceName == 123;
  v13 = 0;
  v14 = 0;
  LODWORD(v15) = 0;
  GuidString[0] = 0i64;
  if( v9 )
  {
    do
    {
      v16 = deviceName[(unsigned int)v15];
      if( v16 == 41 )
        break;
      if( v8 == 123 )
      {
        if( v16 == 125 )
        {
          v13 = 1;
          break;
        }
      }
      else if( v16 == 45 )
      {
        break;
      }
      LODWORD(v15) = v15 + 1;
    }
    while( (unsigned int)v15 < v9 );
  }
  if( v8 == 123 && !v13 )
    return -1073741811;
  v17 = v11;
  if( (unsigned int)v15 > 8 )
    v17 = 1;
  if( v17 != 1 || v13 != 1 )
  {
    PoolWithTag = ExAllocatePoolWithTag(0x200ui64, 2i64 * (unsigned int)(v15 + 1), 1920364101i64);
    v20 = (UINT16 *)PoolWithTag;
    if( !PoolWithTag )
      return -1073741670;
    wcsncpy_s((WCHAR *)PoolWithTag, (unsigned int)(v15 + 1), deviceName, (unsigned int)v15);
    v20[(unsigned int)v15] = 0;
    if( v17 )
      v21 = ExpTranslateHexStringToGUID(v20, diskSignature);
    else
      v21 = ExpTranslateHexStringToULONG(v20, (UINT64 *)&diskSignature->Data1);
    v22 = v21;
    ExFreePoolWithTag(v20, 0);
    if( v22 < 0 )
      return v22;
    v14 = 0;
LABEL_24:
    if( (unsigned int)v15 < v9 )
    {
      if( deviceName[(unsigned int)v15] != 45 )
      {
LABEL_46:
        if( (unsigned int)v15 < v9 && deviceName[(unsigned int)v15] == 41 && (v17 || v14) )
        {
          *GPTpartition = v17;
          *longSignature = v14;
          return 0;
        }
        return -1073741811;
      }
      v23 = (unsigned int)(v15 + 1);
      v14 = 1;
      if( (unsigned int)v23 < v9 )
      {
        v24 = ExAllocatePoolWithTag(0x200ui64, 0x22ui64, 1920364101i64);
        if( v24 )
        {
          v25 = v23;
          v26 = &deviceName[v23];
          do
          {
            if( deviceName[v23] == 45 )
              break;
            v23 = (unsigned int)(v23 + 1);
          }
          while( (unsigned int)v23 < v9 );
          v27 = v23 - v25;
          if( (unsigned int)(v23 - v25 - 1) > 7 )
            goto LABEL_51;
          v28 = v27;
          wcsncpy_s((WCHAR *)v24, 0x11ui64, v26, v27);
          *((_WORD *)v24 + v28) = 0;
          v22 = ExpTranslateHexStringToULONG((PWCHAR)v24, partitionNumber);
          if( v22 < 0 )
          {
LABEL_52:
            ExFreePoolWithTag(v24, 0);
            return v22;
          }
          v29 = (unsigned int)(v23 + 1);
          if( (unsigned int)v29 >= v9 )
            goto LABEL_51;
          v30 = v29;
          v31 = &deviceName[v29];
          do
          {
            if( deviceName[v29] == 45 )
              break;
            v29 = (unsigned int)(v29 + 1);
          }
          while( (unsigned int)v29 < v9 );
          v32 = v29 - v30;
          if( (unsigned int)(v29 - v30 - 1) > 0xF )
            goto LABEL_51;
          v33 = v32;
          wcsncpy_s((WCHAR *)v24, 0x11ui64, v31, v32);
          *((_WORD *)v24 + v33) = 0;
          v34 = ExpTranslateHexStringToULONGLONG((UINT16 *)v24, (__int64 *)partitionStart);
          if( v34 < 0 )
          {
            v22 = v34;
            goto LABEL_52;
          }
          v15 = (unsigned int)(v29 + 1);
          if( (unsigned int)v15 >= v9 )
            goto LABEL_51;
          v35 = v15;
          v36 = &deviceName[v15];
          do
          {
            if( deviceName[v15] == 41 )
              break;
            v15 = (unsigned int)(v15 + 1);
          }
          while( (unsigned int)v15 < v9 );
          v37 = v15 - v35;
          if( (unsigned int)(v15 - v35 - 1) > 0xF )
          {
LABEL_51:
            v22 = -1073741811;
            goto LABEL_52;
          }
          v38 = v37;
          wcsncpy_s((WCHAR *)v24, 0x11ui64, v36, v37);
          *((_WORD *)v24 + v38) = 0;
          v22 = ExpTranslateHexStringToULONGLONG((UINT16 *)v24, (__int64 *)partitionSize);
          ExFreePoolWithTag(v24, 0);
          if( v22 < 0 )
            return v22;
          goto LABEL_46;
        }
        return -1073741670;
      }
    }
    return -1073741811;
  }
  LODWORD(v15) = v15 + 1;
  GuidString[0].Buffer = deviceName;
  GuidString[0].Length = 2 * v15;
  GuidString[0].MaximumLength = 2 * v15;
  result = RtlGUIDFromString(GuidString, diskSignature);
  if( result >= 0 )
    goto LABEL_24;
  return result;
}

Referenced by: