atalk - AppleTalk protocol family Linux Man Page

NAME

atalk - AppleTalk protocol family

SYNOPSIS


#include <sys/types.h>
#include <netatalk/at.h>

DESCRIPTION

The AppleTalk protocol family is a collection of protocols layered above the Datagram Delivery Protocol (DDP), and using AppleTalk address format. The AppleTalk family may provide SOCK_STREAM (ADSP), SOCK_DGRAM (DDP), SOCK_RDM (ATP), and SOCK_SEQPACKET (ASP). Currently, only DDP is implemented in the kernel; ATP and ASP are implemented in user level libraries; and ADSP is planned.

ADDRESSING

netatalk/at.h

> defines the AppleTalk address format.


struct sockaddr_at {
    short sat_family;
    u_char sat_port;
    struct at_addr sat_addr;
    char sat_zero[ 8 ];
};

bind(2)

bind

must always be

ATADDR_ANYNODE

: ``this node.'' The net may be

ATADDR_ANYNET

or

ATADDR_LATENET

.

ATADDR_ANYNET

coresponds to the machine's ``primary'' address (the first configured).

ATADDR_LATENET

causes the address in outgoing packets to be determined when a packet is sent, i.e. determined late.

ATADDR_LATENET

is equivalent to opening one socket for each network interface. The port of a socket and either the primary address or

ATADDR_LATENET

are returned with getsockname(2) .