Проект OpenNet: MAN net_lifgetnext (9) Ядро (FreeBSD и Linux)

Интерактивная система просмотра системных руководств (man-ов)

net_lifgetnext (9)

>> net_lifgetnext (9) ( Solaris man: Ядро )

NAME

net_lifgetnext - search through a list of logical network interfaces

SYNOPSIS

#include <sys/neti.h>

net_if_t net_lifgetnext(const net_data_t net, const phy_if_t ifp, 
    net_if_t lif);

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).

PARAMETERS

net

: value returned from a successful call to net_protocol_lookup(9F).

ifp

: value returned from a successful call to net_phylookup(9F) or net_phygetnext(9F).

lif

: value returned from a successful call to this function.

DESCRIPTION

The net_lifgetnext() function is used to search through all of the logical interfaces that are associated with a physical network interface. To start searching through this list, a value of 0 should be passed through as the value of lif. When 0 is returned by this function, the last of the interfaces owned by this protocol has been reached.

When called successfully, the value returned represents a logical interface that exists, at the time of the call, within the scope of the network interface and its assigned network protocol. This value is only guaranteed to be unique for a name within the scope of the network interface and its assigned protocol.

EXAMPLES

   net_data_t net;
   phy_if_t ifp;
   net_if_t lif;
   char buffer[32];
   net_ifaddr_t atype[1];
   struct sockaddr_in sin[1];

   net = net_protocol_lookup("inet");

   if (net != NULL) {
        atype[0] = NA_ADDRESS;
        ifp = net_phylookup(net, "hme0");
        for (lif = net_lifgetnext(net, 0); lif != 0;
              lif = net_lifgetnext(net, lif)) {
              /* Do something with lif */
              if (net_getlifaddr(net, ifp, lif, 1, atype, sin) == 0)
                    printf("hme0:%d %x0, lif,
                        ntohl(sin[0].sin_addr.s_addr));
         }
     }

RETURN VALUES

The net_lifgetnext() function returns a value of -1 if it is not supported by the network protocol and a value of 0 if an attempt to go beyond the last network interface is made. Otherwise, it returns a value representing a network interface.