RtlPrefixUnicodeString

NTSTATUS __stdcall RtlPrefixUnicodeString(PVOID EventHandle, INT64 *PreviousState){
  char v2; 
  __int64 v3; 
  _WORD *v4; 
  char *v5; 
  INT64 v6; 
  UINT16 v7; 
  UINT16 v8; 
  __int16 v9; 
  INT64 v10; 
  v3 = *(unsigned __int16 *)EventHandle;
  v4 = (_WORD *)*((_QWORD *)EventHandle + 1);
  if( *(_WORD *)PreviousState < (unsigned __int16)v3 )
  {
LABEL_9:
    LOBYTE(v3) = 0;
    return v3;
  }
  v5 = (char *)v4 + v3;
  if( v4 < (_WORD *)((char *)v4 + v3) )
  {
    if( v2 )
    {
      v6 = PreviousState[1] - (_QWORD)v4;
      while( 1 )
      {
        v7 = *(_WORD *)((char *)v4 + v6);
        if( *v4 != v7 )
        {
          NLS_UPCASE(v7);
          LOWORD(v3) = NLS_UPCASE(v8);
          if( (_WORD)v3 != v9 )
            break;
        }
        if( ++v4 >= (_WORD *)v5 )
          goto LABEL_7;
      }
    }
    else
    {
      v10 = PreviousState[1] - (_QWORD)v4;
      while( 1 )
      {
        LODWORD(v3) = *(unsigned __int16 *)((char *)v4 + v10);
        if( *v4 != (_WORD)v3 )
          break;
        if( ++v4 >= (_WORD *)v5 )
          goto LABEL_7;
      }
    }
    goto LABEL_9;
  }
LABEL_7:
  LOBYTE(v3) = 1;
  return v3;
}

Referenced by: