byteorder3
Convert values between host and network byte order
Usage
#include <arpa/inet.h>
uint64_t
htonll(uint64_t hostlonglong);
uint32_t
htonl(uint32_t hostlong);
uint16_t
htons(uint16_t hostshort);
uint64_t
ntohll(uint64_t netlonglong);
uint32_t
ntohl(uint32_t netlong);
uint16_t
ntohs(uint16_t netshort);
Library
Standard C Library (libc, -lc)
Overview
These routines convert 16 bit, 32 bit, and 64 bit quantities between network byte order and host byte order. (Network byte order is big endian, or most significant byte first.) 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(3) and getservent(3).
Releases
163 releases since Mac OS X 10.0; the text changed 3 times.