void errorreply(Client *c, char* s);void statusreply(Client *c, char* s);void bulkreply(Client *c, pstring *s);void nilreply(Client *c);int gethandler(Client *c);int sethandler(Client *c);int quithandler(Client *c);void cleanclient(Client *c, int done);int readnum(int sockd, void *vptr, int maxlen);pstring* readpstring(int fd, int len);void handler(int fd);