int sendreq(int sock, struct hthead *req, int fd);
int recvreq(int sock, struct hthead **reqp);
void replrest(struct hthead *head, char *rest);
int sendreq(int sock, struct hthead *req, int fd);
int recvreq(int sock, struct hthead **reqp);
void replrest(struct hthead *head, char *rest);