htonl man page on DigitalUNIX

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htonl(3)							      htonl(3)

NAME
       htonl  -	 Convert  an  unsigned	32-bit integer from host byte order to
       Internet network-byte order

SYNOPSIS
       #include <arpa/inet.h>

       in_addr_t htonl(
	       in_addr_t hostint );

LIBRARY
       Standard C Library (libc)

STANDARDS
       Interfaces documented on this reference page conform to industry	 stan‐
       dards as follows:

       htonl():	 XNS4.0, XNS5.0

       Refer  to  the  standards(5)  reference page for more information about
       industry standards and associated tags.

PARAMETERS
       Specifies a 32-bit integer in host byte order.

DESCRIPTION
       The htonl() (host-to-network long) function converts an unsigned 32-bit
       integer from host byte order to Internet network-byte order.

       The  Internet  network requires address and port reference data in net‐
       work-byte order. Use the htonl() function to convert address  and  port
       integers from Internet host byte order to Internet network-byte ordered
       integers.

RETURN VALUES
       Upon successful completion, the htonl() function returns a 32-bit inte‐
       ger in Internet network-byte order.

ERRORS
       Current	industry  standards do not define error values for the htonl()
       function.

SEE ALSO
       Functions: endhostent(3), endservent(3), htons(3), ntohl(3), ntohs(3)

       Standards: standards(5)

       Network Programmer's Guide

								      htonl(3)
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