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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 standards
  as follows:

  htonl():  XNS4.0, XNS5.0

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

PARAMETERS
  hostint
      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 network-
  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 integer
  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

Index for Section 3

Alphabetical listing for H

Top of page