OSF

NAME

ntohl − Converts an unsigned long (32-bit) integer from Internet network-byte order to host-byte order

LIBRARY

Standard C Library (libc.a)

SYNOPSIS

#include <netinet/in.h> unsigned long ntohl (
unsigned long netlong) ;

PARAMETERS

netlongSpecifies a 32-bit integer in network-byte order. 

DESCRIPTION

The ntohl() (network-to-host long) function converts an unsigned long (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 (most significant byte leftmost, least significant byte rightmost).  You can use the ntohl() function to convert Internet network address and port data to host byte-ordered integers. 

The ntohl() function is defined as a little-endian function in the netinet/in.h header file for machine environments where network-byte order and host-byte order are not identical. 

RETURN VALUES

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

RELATED INFORMATION

Functions: ntohs(3), htonl(3), htons(3)