118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/* $NetBSD: print-null.c,v 1.4 1997/03/15 18:37:57 is Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1991, 1993, 1994
|
|
* 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: (1) source code distributions
|
|
* retain the above copyright notice and this paragraph in its entirety, (2)
|
|
* distributions including binary code include the above copyright notice and
|
|
* this paragraph in its entirety in the documentation or other materials
|
|
* provided with the distribution, and (3) all advertising materials mentioning
|
|
* features or use of this software display the following acknowledgement:
|
|
* ``This product includes software developed by the University of California,
|
|
* Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char rcsid[] =
|
|
"@(#)Header: print-null.c,v 1.14 94/06/10 17:01:35 mccanne Exp (LBL)";
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/file.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include <net/if.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#ifdef __NetBSD__
|
|
#include <net/if_ether.h>
|
|
#else
|
|
#include <netinet/if_ether.h>
|
|
#endif
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/udp_var.h>
|
|
#include <netinet/tcp.h>
|
|
#include <netinet/tcpip.h>
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "interface.h"
|
|
#include "addrtoname.h"
|
|
#include "pcap.h"
|
|
|
|
#define NULL_HDRLEN 4
|
|
|
|
static void
|
|
null_print(const u_char *p, const struct ip *ip, int length)
|
|
{
|
|
u_int family;
|
|
|
|
bcopy(p, &family, sizeof(family));
|
|
|
|
if (nflag) {
|
|
/* XXX just dump the header */
|
|
return;
|
|
}
|
|
switch (family) {
|
|
|
|
case AF_INET:
|
|
printf("ip: ");
|
|
break;
|
|
|
|
case AF_NS:
|
|
printf("ns: ");
|
|
break;
|
|
|
|
default:
|
|
printf("AF %d: ", family);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
null_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
|
|
{
|
|
int length = h->len;
|
|
int caplen = h->caplen;
|
|
const struct ip *ip;
|
|
|
|
ts_print(&h->ts);
|
|
|
|
/*
|
|
* Some printers want to get back at the link level addresses,
|
|
* and/or check that they're not walking off the end of the packet.
|
|
* Rather than pass them all the way down, we set these globals.
|
|
*/
|
|
packetp = p;
|
|
snapend = p + caplen;
|
|
|
|
length -= NULL_HDRLEN;
|
|
|
|
ip = (struct ip *)(p + NULL_HDRLEN);
|
|
|
|
if (eflag)
|
|
null_print(p, ip, length);
|
|
|
|
ip_print((const u_char *)ip, length);
|
|
|
|
if (xflag)
|
|
default_print((const u_char *)ip, caplen - NULL_HDRLEN);
|
|
putchar('\n');
|
|
}
|
|
|