func: void bad() wchar_t * data ; wchar_t dataBuffer [ FILENAME_MAX ] = L "" data = dataBuffer; size_t dataLen = wcslen ( data ) ; wcsncat ( data + dataLen , environment , FILENAME_MAX - dataLen - 1 ); wchar_t * dataCopy = data ; wchar_t * data = dataCopy ; pFile = FOPEN ( data , L "wb+" ) if ( pFile != NULL )  fclose ( pFile ); 