RtlUnicodeStringCatString

VOID __stdcall RtlUnicodeStringCatString(_UNICODE_STRING *DestinationString, PWCHAR pszSrc){
  unsigned __int64 Length; 
  wchar_t *Buffer; 
  unsigned __int64 v5; 
  unsigned __int64 v6; 
  int v7; 
  unsigned __int64 MaximumLength; 
  __int64 v9; 
  __int16 v10; 
  unsigned __int64 v11; 
  char *v12; 
  Length = DestinationString->Length;
  Buffer = 0i64;
  v5 = 0i64;
  v6 = 0i64;
  v7 = 0;
  if( (Length & 1) == 0 )
  {
    MaximumLength = DestinationString->MaximumLength;
    if( (MaximumLength & 1) == 0
      && (unsigned __int16)Length <= (unsigned __int16)MaximumLength
      && (_WORD)MaximumLength != 0xFFFF )
    {
      if( !DestinationString->Buffer && ((_WORD)Length || (_WORD)MaximumLength) )
      {
        v7 = -1073741811;
      }
      else
      {
        v5 = MaximumLength >> 1;
        Buffer = DestinationString->Buffer;
        v6 = Length >> 1;
      }
      if( v7 >= 0 )
      {
        v9 = 0x7FFFi64;
        v10 = 0;
        v11 = v5 - v6;
        if( v11 )
        {
          v12 = (char *)Buffer + 2 * v6 - (_QWORD)pszSrc;
          do
          {
            if( !v9 )
              break;
            if( !*pszSrc )
              break;
            *(PWCHAR)((char *)pszSrc + (_QWORD)v12) = *pszSrc;
            --v9;
            ++pszSrc;
            ++v10;
            --v11;
          }
          while( v11 );
        }
        DestinationString->Length = 2 * (v10 + v6);
      }
    }
  }
}

Referenced by: