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BYTEORDER(3)               Linux Programmer's ManualBYTEORDER(3)NAME       htonl,  htons,  ntohl,  ntohs - convert values between host and network       byte orderSYNOPSIS       #include <arpa/inet.h>       uint32_t htonl(uint32_t hostlong);       uint16_t htons(uint16_t hostshort);       uint32_t ntohl(uint32_t netlong);       uint16_t ntohs(uint16_t netshort);DESCRIPTION       The htonl() function converts the unsigned integer hostlong  from  host       byte order to network byte order.       The htons() function converts the unsigned short integer hostshort from       host byte order to network byte order.       The ntohl() function converts the unsigned integer netlong from network       byte order to host byte order.       The  ntohs() function converts the unsigned short integer netshort from       network byte order to host byte order.       On the i386 the host  byte  order  is  Least  Significant  Byte  first,       whereas  the  network byte order, as used on the Internet, is Most Sig-       nificant Byte first.ATTRIBUTES       For an  explanation  of  the  terms  used  in  this  section,  see  at-tributes(7).       +-----------------------------------+---------------+---------+       |Interface                          | Attribute     | Value   |       +-----------------------------------+---------------+---------+       |htonl(), htons(), ntohl(), ntohs() | Thread safety | MT-Safe |       +-----------------------------------+---------------+---------+CONFORMING TO       POSIX.1-2001, POSIX.1-2008.       Some  systems  require  the  inclusion  of  <netinet/in.h>  instead  of       <arpa/inet.h>.SEE ALSObswap(3),endian(3),gethostbyname(3),getservent(3)COLOPHON       This page is part of release 5.05 of the Linux  man-pages  project.   A       description  of  the project, information about reporting bugs, and the       latest    version    of    this    page,    can     be     found     at       https://www.kernel.org/doc/man-pages/.GNU                               2017-09-15BYTEORDER(3)