func: void bad() wchar_t * data ; wchar_t dataBuffer [ FILENAME_MAX ] = L "" data = dataBuffer; if ( GLOBAL_CONST_FIVE == 5 )  size_t dataLen = wcslen ( data ) ; wchar_t * environment = GETENV ( ENV_VARIABLE ) ; if ( environment != NULL )  wcsncat ( data + dataLen , environment , FILENAME_MAX - dataLen - 1 ); pFile = FOPEN ( data , L "wb+" ) if ( pFile != NULL )  fclose ( pFile ); 