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Diffstat (limited to 'contrib/tcpdump/print-null.c')
| -rw-r--r-- | contrib/tcpdump/print-null.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/contrib/tcpdump/print-null.c b/contrib/tcpdump/print-null.c deleted file mode 100644 index 7fd45417c4789..0000000000000 --- a/contrib/tcpdump/print-null.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997 - * 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 const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-null.c,v 1.53.2.3 2005/07/07 01:24:38 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <tcpdump-stdinc.h> - -#include <pcap.h> -#include <stdio.h> -#include <string.h> - -#include "interface.h" -#include "addrtoname.h" - -#include "ip.h" -#ifdef INET6 -#include "ip6.h" -#endif - -/* - * The DLT_NULL packet header is 4 bytes long. It contains a host-byte-order - * 32-bit integer that specifies the family, e.g. AF_INET. - * - * Note here that "host" refers to the host on which the packets were - * captured; that isn't necessarily *this* host. - * - * The OpenBSD DLT_LOOP packet header is the same, except that the integer - * is in network byte order. - */ -#define NULL_HDRLEN 4 - -/* - * BSD AF_ values. - * - * Unfortunately, the BSDs don't all use the same value for AF_INET6, - * so, because we want to be able to read captures from all of the BSDs, - * we check for all of them. - */ -#define BSD_AF_INET 2 -#define BSD_AF_NS 6 /* XEROX NS protocols */ -#define BSD_AF_ISO 7 -#define BSD_AF_APPLETALK 16 -#define BSD_AF_IPX 23 -#define BSD_AF_INET6_BSD 24 /* OpenBSD (and probably NetBSD), BSD/OS */ -#define BSD_AF_INET6_FREEBSD 28 -#define BSD_AF_INET6_DARWIN 30 - -const struct tok bsd_af_values[] = { - { BSD_AF_INET, "IPv4" }, - { BSD_AF_NS, "NS" }, - { BSD_AF_ISO, "ISO" }, - { BSD_AF_APPLETALK, "Appletalk" }, - { BSD_AF_IPX, "IPX" }, - { BSD_AF_INET6_BSD, "IPv6" }, - { BSD_AF_INET6_FREEBSD, "IPv6" }, - { BSD_AF_INET6_DARWIN, "IPv6" }, - { 0, NULL} -}; - - -/* - * Byte-swap a 32-bit number. - * ("htonl()" or "ntohl()" won't work - we want to byte-swap even on - * big-endian platforms.) - */ -#define SWAPLONG(y) \ -((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff)) - -static inline void -null_hdr_print(u_int family, u_int length) -{ - if (!qflag) { - (void)printf("AF %s (%u)", - tok2str(bsd_af_values,"Unknown",family),family); - } else { - (void)printf("%s", - tok2str(bsd_af_values,"Unknown AF %u",family)); - } - - (void)printf(", length %u: ", length); -} - -/* - * This is the top level routine of the printer. 'p' points - * to the ether header of the packet, 'h->ts' is the timestamp, - * 'h->len' is the length of the packet off the wire, and 'h->caplen' - * is the number of bytes actually captured. - */ -u_int -null_if_print(const struct pcap_pkthdr *h, const u_char *p) -{ - u_int length = h->len; - u_int caplen = h->caplen; - u_int family; - - if (caplen < NULL_HDRLEN) { - printf("[|null]"); - return (NULL_HDRLEN); - } - - memcpy((char *)&family, (char *)p, sizeof(family)); - - /* - * This isn't necessarily in our host byte order; if this is - * a DLT_LOOP capture, it's in network byte order, and if - * this is a DLT_NULL capture from a machine with the opposite - * byte-order, it's in the opposite byte order from ours. - * - * If the upper 16 bits aren't all zero, assume it's byte-swapped. - */ - if ((family & 0xFFFF0000) != 0) - family = SWAPLONG(family); - - if (eflag) - null_hdr_print(family, length); - - length -= NULL_HDRLEN; - caplen -= NULL_HDRLEN; - p += NULL_HDRLEN; - - switch (family) { - - case BSD_AF_INET: - ip_print(gndo, p, length); - break; - -#ifdef INET6 - case BSD_AF_INET6_BSD: - case BSD_AF_INET6_FREEBSD: - case BSD_AF_INET6_DARWIN: - ip6_print(p, length); - break; -#endif - - case BSD_AF_ISO: - isoclns_print(p, length, caplen); - break; - - case BSD_AF_APPLETALK: - atalk_print(p, length); - break; - - case BSD_AF_IPX: - ipx_print(p, length); - break; - - default: - /* unknown AF_ value */ - if (!eflag) - null_hdr_print(family, length + NULL_HDRLEN); - if (!suppress_default_print) - default_print(p, caplen); - } - - return (NULL_HDRLEN); -} - -/* - * Local Variables: - * c-style: whitesmith - * c-basic-offset: 8 - * End: - */ |