NetBSD/sbin/ifconfig/af_atalk.c

178 lines
5.4 KiB
C

/* $NetBSD: af_atalk.c,v 1.1 2005/03/19 23:32:55 thorpej Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef INET_ONLY
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: af_atalk.c,v 1.1 2005/03/19 23:32:55 thorpej Exp $");
#endif /* not lint */
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netatalk/at.h>
#include <err.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "extern.h"
#include "af_atalk.h"
static struct netrange at_nr; /* AppleTalk net range */
void
at_getaddr(const char *addr, int which)
{
struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr;
u_int net, node;
sat->sat_family = AF_APPLETALK;
sat->sat_len = sizeof(*sat);
if (which == MASK)
errx(EXIT_FAILURE, "AppleTalk does not use netmasks");
if (sscanf(addr, "%u.%u", &net, &node) != 2
|| net == 0 || net > 0xffff || node == 0 || node > 0xfe)
errx(EXIT_FAILURE, "%s: illegal address", addr);
sat->sat_addr.s_net = htons(net);
sat->sat_addr.s_node = node;
}
void
setatrange(const char *range, int d)
{
u_short first = 123, last = 123;
if (sscanf(range, "%hu-%hu", &first, &last) != 2
|| first == 0 /* || first > 0xffff */
|| last == 0 /* || last > 0xffff */ || first > last)
errx(EXIT_FAILURE, "%s: illegal net range: %u-%u", range,
first, last);
at_nr.nr_firstnet = htons(first);
at_nr.nr_lastnet = htons(last);
}
void
setatphase(const char *phase, int d)
{
if (!strcmp(phase, "1"))
at_nr.nr_phase = 1;
else if (!strcmp(phase, "2"))
at_nr.nr_phase = 2;
else
errx(EXIT_FAILURE, "%s: illegal phase", phase);
}
void
checkatrange(struct sockaddr *sa)
{
struct sockaddr_at *sat = (struct sockaddr_at *) sa;
if (at_nr.nr_phase == 0)
at_nr.nr_phase = 2; /* Default phase 2 */
if (at_nr.nr_firstnet == 0)
at_nr.nr_firstnet = /* Default range of one */
at_nr.nr_lastnet = sat->sat_addr.s_net;
printf("\tatalk %d.%d range %d-%d phase %d\n",
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase);
if ((u_short) ntohs(at_nr.nr_firstnet) >
(u_short) ntohs(sat->sat_addr.s_net)
|| (u_short) ntohs(at_nr.nr_lastnet) <
(u_short) ntohs(sat->sat_addr.s_net))
errx(EXIT_FAILURE, "AppleTalk address is not in range");
*((struct netrange *) &sat->sat_zero) = at_nr;
}
void
at_status(int force)
{
struct sockaddr_at *sat, null_sat;
struct netrange *nr;
getsock(AF_APPLETALK);
if (s < 0) {
if (errno == EPROTONOSUPPORT)
return;
err(EXIT_FAILURE, "socket");
}
(void) memset(&ifr, 0, sizeof(ifr));
(void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFADDR, &ifr) == -1) {
if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
if (!force)
return;
(void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
} else
warn("SIOCGIFADDR");
}
(void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
sat = (struct sockaddr_at *)&ifr.ifr_addr;
(void) memset(&null_sat, 0, sizeof(null_sat));
nr = (struct netrange *) &sat->sat_zero;
printf("\tatalk %d.%d range %d-%d phase %d",
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase);
if (flags & IFF_POINTOPOINT) {
if (ioctl(s, SIOCGIFDSTADDR, &ifr) == -1) {
if (errno == EADDRNOTAVAIL)
(void) memset(&ifr.ifr_addr, 0,
sizeof(ifr.ifr_addr));
else
warn("SIOCGIFDSTADDR");
}
(void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sat = (struct sockaddr_at *)&ifr.ifr_dstaddr;
if (!sat)
sat = &null_sat;
printf("--> %d.%d",
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node);
}
if (flags & IFF_BROADCAST) {
/* note RTAX_BRD overlap with IFF_POINTOPOINT */
sat = (struct sockaddr_at *)&ifr.ifr_broadaddr;
if (sat)
printf(" broadcast %d.%d", ntohs(sat->sat_addr.s_net),
sat->sat_addr.s_node);
}
printf("\n");
}
#endif /* ! INET_ONLY */