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htonl(3)

NAME

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

LIBRARY

Standard C Library (libc.so, libc.a)

SYNOPSIS

#include <arpa/inet.h> in_addr_t htonl ( in_addr_t hostint) ;

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows: htonl(): XNS4.0 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.

RELATED INFORMATION

Functions: endhostent(3), endservent(3), htons(3), ntohl(3), ntohs(3) Standards: standards(5) Network Programmer's Guide

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