Проект OpenNet: MAN ipsec_subnetof (3) Библиотечные вызовы (FreeBSD и Linux)

Интерактивная система просмотра системных руководств (man-ов)

ipsec_subnetof (3)

>> ipsec_subnetof (3) ( Разные man: Библиотечные вызовы )

NAME

ipsec subnetof - given Internet address and subnet mask, return subnet number



ipsec hostof - given Internet address and subnet mask, return host part



ipsec broadcastof - given Internet address and subnet mask, return broadcast address

SYNOPSIS

#include <freeswan.h>

struct in_addr subnetof(struct in_addr addr,
struct in_addr mask);
struct in_addr hostof(struct in_addr addr,
struct in_addr mask);
struct in_addr broadcastof(struct in_addr addr,
struct in_addr mask);

DESCRIPTION

These functions are obsolete; see ipsec_networkof(3) for their replacements.

Subnetof takes an Internet address and a subnet mask and returns the network part of the address (all in network byte order). Hostof similarly returns the host part, and broadcastof returns the broadcast address (all-1s convention) for the network.

These functions are provided to hide the Internet bit-munging inside an API, in hopes of easing the eventual transition to IPv6.