mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
149 lines
3.8 KiB
C
149 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2004 Bruce M Simpson <bms@spc.org>
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* Print the system's current multicast group memberships.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_var.h>
|
|
#include <net/if_mib.h>
|
|
#include <net/if_types.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/route.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/if_ether.h>
|
|
#include <arpa/inet.h>
|
|
#include <netdb.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <ifaddrs.h>
|
|
#include <sysexits.h>
|
|
|
|
#include <stddef.h>
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "netstat.h"
|
|
|
|
union sockunion {
|
|
struct sockaddr_storage ss;
|
|
struct sockaddr sa;
|
|
struct sockaddr_dl sdl;
|
|
struct sockaddr_in sin;
|
|
struct sockaddr_in6 sin6;
|
|
};
|
|
typedef union sockunion sockunion_t;
|
|
|
|
#define MYIFNAME_SIZE 128
|
|
|
|
void
|
|
ifmalist_dump(void)
|
|
{
|
|
struct ifmaddrs *ifmap, *ifma;
|
|
sockunion_t *psa;
|
|
char myifname[MYIFNAME_SIZE];
|
|
char addrbuf[INET6_ADDRSTRLEN];
|
|
char *pcolon;
|
|
void *addr;
|
|
char *pifname, *plladdr, *pgroup;
|
|
|
|
if (getifmaddrs(&ifmap))
|
|
err(EX_OSERR, "getifmaddrs");
|
|
|
|
fputs("IPv4/IPv6 Multicast Group Memberships\n", stdout);
|
|
fprintf(stdout, "%-20s\t%-16s\t%s\n", "Group", "Gateway", "Netif");
|
|
|
|
for (ifma = ifmap; ifma; ifma = ifma->ifma_next) {
|
|
|
|
if (ifma->ifma_name == NULL || ifma->ifma_addr == NULL)
|
|
continue;
|
|
|
|
/* Group address */
|
|
psa = (sockunion_t *)ifma->ifma_addr;
|
|
switch (psa->sa.sa_family) {
|
|
case AF_INET:
|
|
pgroup = inet_ntoa(psa->sin.sin_addr);
|
|
break;
|
|
case AF_INET6:
|
|
addr = &psa->sin6.sin6_addr;
|
|
inet_ntop(psa->sa.sa_family, addr, addrbuf,
|
|
sizeof(addrbuf));
|
|
pgroup = addrbuf;
|
|
break;
|
|
default:
|
|
continue; /* XXX */
|
|
}
|
|
|
|
/* Link-layer mapping, if any */
|
|
psa = (sockunion_t *)ifma->ifma_lladdr;
|
|
if (psa != NULL) {
|
|
switch (psa->sa.sa_family) {
|
|
case AF_INET:
|
|
plladdr = inet_ntoa(psa->sin.sin_addr);
|
|
break;
|
|
case AF_LINK:
|
|
if (psa->sdl.sdl_type == IFT_ETHER)
|
|
plladdr = ether_ntoa((struct ether_addr *)&psa->sdl.sdl_data);
|
|
else
|
|
plladdr = link_ntoa(&psa->sdl);
|
|
break;
|
|
}
|
|
} else
|
|
plladdr = "<none>";
|
|
|
|
/* Interface upon which the membership exists */
|
|
psa = (sockunion_t *)ifma->ifma_name;
|
|
switch (psa->sa.sa_family) {
|
|
case AF_LINK:
|
|
strlcpy(myifname, link_ntoa(&psa->sdl),
|
|
MYIFNAME_SIZE);
|
|
pcolon = strchr(myifname, ':');
|
|
if (pcolon)
|
|
*pcolon = '\0';
|
|
pifname = myifname;
|
|
break;
|
|
default:
|
|
pifname = "";
|
|
break;
|
|
}
|
|
|
|
fprintf(stdout, "%-20s\t%-16s\t%s\n", pgroup, plladdr, pifname);
|
|
}
|
|
|
|
freeifmaddrs(ifmap);
|
|
}
|