Convert values between host and network byte order.

#include <arpa/inet.h>
#include <netinet/in.h>
uint32_t
htonl(uint32_t);

uint16_t
htons(uint16_t);

uint32_t
ntohl(uint32_t);

uint16_t
ntohs(uint16_5);

Description

These routines convert 16 and 32 bit quantities between network byte order and host byte order. On machines which have a byte order which is the same as the network order, routines are defined as null macros.

These routines are most often used in conjunction with Internet addresses and ports as returned by gethostbyname and getservent.

Requirements