1BYTEORDER(3N)                                                    BYTEORDER(3N)
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NAME

6       htonl,  htons,  ntohl,  ntohs - convert values between host and network
7       byte order
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SYNOPSIS

10       #include <sys/types.h>
11       #include <netinet/in.h>
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13       netlong = htonl(hostlong);
14       u_long netlong, hostlong;
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16       netshort = htons(hostshort);
17       u_short netshort, hostshort;
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19       hostlong = ntohl(netlong);
20       u_long hostlong, netlong;
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22       hostshort = ntohs(netshort);
23       u_short hostshort, netshort;
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DESCRIPTION

26       These routines convert 16 and 32 bit quantities  between  network  byte
27       order  and host byte order.  On machines such as the SUN these routines
28       are defined as null macros in the include file <netinet/in.h>.
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30       These routines  are  most  often  used  in  conjunction  with  Internet
31       addresses  and  ports  as  returned  by  gethostbyname(3N)  and getser‐
32       vent(3N).
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SEE ALSO

35       gethostbyname(3N), getservent(3N)
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BUGS

38       The VAX handles bytes backwards from most everyone else in  the  world.
39       This is not expected to be fixed in the near future.
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434.2 Berkeley Distribution        May 15, 1986                    BYTEORDER(3N)