1%{
2/*
3 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
4 * The Regents of the University of California. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that: (1) source code distributions
8 * retain the above copyright notice and this paragraph in its entirety, (2)

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14 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
15 * the University nor the names of its contributors may be used to endorse
16 * or promote products derived from this software without specific prior
17 * written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 *
22 * $FreeBSD: head/contrib/libpcap/scanner.l 98533 2002-06-21 01:38:14Z fenner $
23 */
24
25#ifndef lint
26static const char rcsid[] =
27 "@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.81 2001/09/14 01:40:57 fenner Exp $ (LBL)";
28#endif
29
30#ifdef HAVE_CONFIG_H
31#include "config.h"
32#endif
33
34#include <sys/types.h>
35#include <sys/time.h>

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167dst return DST;
168src return SRC;
169
170link|ether|ppp|slip return LINK;
171fddi|tr return LINK;
172arp return ARP;
173rarp return RARP;
174ip return IP;
175sctp return SCTP;
176tcp return TCP;
177udp return UDP;
178icmp return ICMP;
179igmp return IGMP;
180igrp return IGRP;
181pim return PIM;
182vrrp return VRRP;
183
184ip6 {
185#ifdef INET6
186 return IPV6;
187#else
188 bpf_error("%s not supported", yytext);
189#endif
190 }
191icmp6 {
192#ifdef INET6
193 return ICMPV6;
194#else
195 bpf_error("%s not supported", yytext);
196#endif
197 }
198ah return AH;
199esp return ESP;
200
201atalk return ATALK;
202aarp return AARP;
203decnet return DECNET;
204lat return LAT;
205sca return SCA;
206moprc return MOPRC;
207mopdl return MOPDL;
208
209iso return ISO;
210esis return ESIS;
211es-is return ESIS;
212isis return ISIS;
213is-is return ISIS;
214clnp return CLNP;
215
216stp return STP;
217
218ipx return IPX;
219
220netbeui return NETBEUI;
221
222host return HOST;
223net return NET;
224mask return MASK;
225port return PORT;
226proto return PROTO;
227protochain {
228#ifdef NO_PROTOCHAIN
229 bpf_error("%s not supported", yytext);

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253[ \n\t] ;
254[+\-*/:\[\]!<>()&|=] return yytext[0];
255">=" return GEQ;
256"<=" return LEQ;
257"!=" return NEQ;
258"==" return '=';
259"<<" return LSH;
260">>" return RSH;
261${B} { yylval.e = pcap_ether_aton(((char *)yytext)+1);
262 return AID; }
263{N} { yylval.i = stoi((char *)yytext); return NUM; }
264({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) {
265 yylval.s = sdup((char *)yytext); return HID; }
266{B}:{B}:{B}:{B}:{B}:{B} { yylval.e = pcap_ether_aton((char *)yytext);
267 return EID; }
268{V6} {
269#ifdef INET6
270 struct addrinfo hints, *res;

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276 else {
277 yylval.e = sdup((char *)yytext); return HID6;
278 }
279#else
280 bpf_error("IPv6 address %s not supported", yytext);
281#endif /*INET6*/
282 }
283{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); }
284icmptype { yylval.i = 0; return NUM; }
285icmpcode { yylval.i = 1; return NUM; }
286icmp-echoreply { yylval.i = 0; return NUM; }
287icmp-unreach { yylval.i = 3; return NUM; }
288icmp-sourcequench { yylval.i = 4; return NUM; }
289icmp-redirect { yylval.i = 5; return NUM; }
290icmp-echo { yylval.i = 8; return NUM; }
291icmp-routeradvert { yylval.i = 9; return NUM; }
292icmp-routersolicit { yylval.i = 10; return NUM; }
293icmp-timxceed { yylval.i = 11; return NUM; }
294icmp-paramprob { yylval.i = 12; return NUM; }
295icmp-tstamp { yylval.i = 13; return NUM; }
296icmp-tstampreply { yylval.i = 14; return NUM; }
297icmp-ireq { yylval.i = 15; return NUM; }
298icmp-ireqreply { yylval.i = 16; return NUM; }
299icmp-maskreq { yylval.i = 17; return NUM; }
300icmp-maskreply { yylval.i = 18; return NUM; }
301tcpflags { yylval.i = 13; return NUM; }
302tcp-fin { yylval.i = 0x01; return NUM; }
303tcp-syn { yylval.i = 0x02; return NUM; }
304tcp-rst { yylval.i = 0x04; return NUM; }
305tcp-push { yylval.i = 0x08; return NUM; }
306tcp-ack { yylval.i = 0x10; return NUM; }
307tcp-urg { yylval.i = 0x20; return NUM; }
308[A-Za-z0-9]([-_.A-Za-z0-9]*[.A-Za-z0-9])? {
309 yylval.s = sdup((char *)yytext); return ID; }
310"\\"[^ !()\n\t]+ { yylval.s = sdup((char *)yytext + 1); return ID; }
311[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+ {
312 bpf_error("illegal token: %s", yytext); }
313. { bpf_error("illegal char '%c'", *yytext); }
314%%
315void
316lex_init(buf)
317 char *buf;
318{
319#ifdef FLEX_SCANNER
320 in_buffer = yy_scan_string(buf);

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