PnpUnicodeStringToWstr

INT64 __stdcall PnpUnicodeStringToWstr(
        WCHAR **OutString,
        UINT64 *OutStringMaximumSize,
        UNICODE_STRING *InUnicodeString){
  unsigned int v3; 
  __int64 MaximumLength; 
  wchar_t *Buffer; 
  unsigned __int64 Length; 
  WCHAR v10; 
  unsigned __int64 v11; 
  int v12; 
  UINT8 *PoolWithTag; 
  WCHAR *v14; 
  unsigned __int64 v15; 
  WCHAR *v17; 
  v3 = 0;
  if( !OutString || !InUnicodeString )
    return(unsigned int)-1073741811;
  MaximumLength = InUnicodeString->MaximumLength;
  if( (unsigned __int16)MaximumLength < 2u || (Buffer = InUnicodeString->Buffer) == 0i64 )
  {
    *OutString = 0i64;
    if( OutStringMaximumSize )
      *(_DWORD *)OutStringMaximumSize = 0;
    return v3;
  }
  Length = InUnicodeString->Length;
  if( (unsigned __int16)Length > (unsigned __int16)MaximumLength )
    return(unsigned int)-1073741811;
  v10 = *Buffer;
  if( (_WORD)Length )
  {
    if( !v10 )
      goto LABEL_17;
    v11 = (unsigned __int64)InUnicodeString->Length >> 1;
    if( (_WORD)Length == (_WORD)MaximumLength && !Buffer[v11 - 1] )
      goto LABEL_17;
    if( Length <= MaximumLength - 2 && (!Buffer[v11 - 1] || !Buffer[v11]) )
      goto LABEL_17;
    v12 = Length + 2;
    PoolWithTag = (UINT8 *)ExAllocatePoolWithTag(PagedPool, (unsigned int)(Length + 2), 0x75737050ui64);
    v14 = (WCHAR *)PoolWithTag;
    if( PoolWithTag )
    {
      memmove(PoolWithTag, (UINT8 *)InUnicodeString->Buffer, InUnicodeString->Length);
      v15 = (unsigned __int64)InUnicodeString->Length >> 1;
      *OutString = v14;
      v14[v15] = 0;
      if( OutStringMaximumSize )
        *(_DWORD *)OutStringMaximumSize = v12;
      return v3;
    }
    return(unsigned int)-1073741670;
  }
  if( !v10 )
  {
LABEL_17:
    *OutString = Buffer;
    if( OutStringMaximumSize )
      *(_DWORD *)OutStringMaximumSize = MaximumLength;
    return v3;
  }
  v17 = (WCHAR *)ExAllocatePoolWithTag(PagedPool, 2ui64, 0x75737050ui64);
  if( !v17 )
    return(unsigned int)-1073741670;
  *v17 = 0;
  *OutString = v17;
  if( OutStringMaximumSize )
    *(_DWORD *)OutStringMaximumSize = 2;
  return v3;
}

Referenced by: