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ntohl(3)

NAME

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

LIBRARY

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

SYNOPSIS

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

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows: ntohl(): XPG4-UNIX 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.

RELATED INFORMATION

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