extern uint32_t htonl(uint32_t hostlong);
extern uint16_t htons(uint16_t hostshort);
extern uint32_t ntohl(uint32_t netlong);
extern uint32_t htonl(uint32_t hostlong);
extern uint16_t htons(uint16_t hostshort);
extern uint32_t ntohl(uint32_t netlong);