class internet                // internet.h
{
  protected:
    int allOK;
    FILE *read_file, *write_file;
    char templine[500];
    void getline(void);
    void tidyup(int q);

  public:
    internet(void);
    int isOK(void);
    char *readline(void);
    char *readlineUC(void);
    char *readlineLC(void);
    void writeline(char *s); };