mirror of
https://github.com/the-tcpdump-group/tcpdump.git
synced 2024-11-27 20:14:12 +08:00
c422d3ab0f
unused-parameter problems reported by GCC. Add an _U_ tag to label parameters as unused if the function is called through a pointer (so that you can't change its signature by removing parameters) or if there are unused parameters only because the function isn't complete. Add some additional bounds checks the necessity for which was revealed while cleaning up unused-parameter problems. Make some routines static. "lcp_print()", defined in "print-lcp.c", isn't called anywhere - "print-ppp.c" has the code to dissect LCP. Get rid of "print-lcp.c".
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/*
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* Copyright (c) 1997 Yen Yen Lim and North Dakota State University
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Yen Yen Lim and
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North Dakota State University
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"@(#) $Header: /tcpdump/master/tcpdump/print-sunatm.c,v 1.4 2002-09-05 21:25:49 guy Exp $ (LBL)";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tcpdump-stdinc.h>
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struct mbuf;
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struct rtentry;
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#include <stdio.h>
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#include <pcap.h>
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#include "interface.h"
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#include "extract.h"
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#include "addrtoname.h"
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#include "atm.h"
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#include "atmuni31.h"
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/* SunATM header for ATM packet */
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#define DIR_POS 0 /* Direction (0x80 = transmit, 0x00 = receive) */
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#define VPI_POS 1 /* VPI */
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#define VCI_POS 2 /* VCI */
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#define PKT_BEGIN_POS 4 /* Start of the ATM packet */
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/* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */
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#define PT_LANE 0x01 /* LANE */
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#define PT_LLC 0x02 /* LLC encapsulation */
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/*
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* This is the top level routine of the printer. 'p' points
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* to the SunATM pseudo-header for the packet, 'h->ts' is the timestamp,
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* 'h->length' is the length of the packet off the wire, and 'h->caplen'
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* is the number of bytes actually captured.
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*/
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void
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sunatm_if_print(u_char *user _U_, const struct pcap_pkthdr *h, const u_char *p)
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{
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u_int caplen = h->caplen;
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u_int length = h->len;
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u_short vci;
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u_char vpi;
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u_int traftype;
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ts_print(&h->ts);
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if (caplen < PKT_BEGIN_POS) {
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printf("[|atm]");
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goto out;
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}
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if (eflag) {
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if (p[DIR_POS] & 0x80)
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printf("Tx: ");
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else
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printf("Rx: ");
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}
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switch (p[DIR_POS] & 0x0f) {
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case PT_LANE:
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traftype = ATM_LANE;
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break;
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case PT_LLC:
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traftype = ATM_LLC;
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break;
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default:
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traftype = ATM_UNKNOWN;
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break;
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}
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vci = EXTRACT_16BITS(&p[VCI_POS]);
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vpi = p[VPI_POS];
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p += PKT_BEGIN_POS;
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caplen -= PKT_BEGIN_POS;
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length -= PKT_BEGIN_POS;
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atm_print(vpi, vci, traftype, p, length, caplen);
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out:
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putchar('\n');
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--infodelay;
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if (infoprint)
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info(0);
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}
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