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endhostent(3)

endservent(3)

ntohs(3)

htonl(3)

htons(3)

standards(5)

ntohl(3)  —  Subroutines

NAME

ntohl − Convert an unsigned 32-bit integer from Internet network byte order to host byte order

SYNOPSIS

#include <arpa/inet.h>
in_addr_t ntohl(
        in_addr_t netint );

LIBRARY

Standard C Library (libc)

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows:

ntohl():  XNS4.0, XNS5.0

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

PARAMETERS

netint
Specifies a 32-bit integer in network-byte order.

DESCRIPTION

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

The Internet network requires address and port reference data in network-byte order. You can use the ntohl() function to convert Internet network address and port data to host byte-ordered integers. 

RETURN VALUES

The ntohl() function returns a 32-bit integer in host-byte order. 

ERRORS

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

SEE ALSO

Functions: endhostent(3), endservent(3), ntohs(3), htonl(3), htons(3). 

Standards: standards(5). 

Network Programmer’s Guide

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