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) 9 * distributions including binary code include the above copyright notice and 10 * this paragraph in its entirety in the documentation or other materials 11 * provided with the distribution, and (3) all advertising materials mentioning 12 * features or use of this software display the following acknowledgement: 13 * ``This product includes software developed by the University of California, 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 *
| 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) 9 * distributions including binary code include the above copyright notice and 10 * this paragraph in its entirety in the documentation or other materials 11 * provided with the distribution, and (3) all advertising materials mentioning 12 * features or use of this software display the following acknowledgement: 13 * ``This product includes software developed by the University of California, 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 75110 2001-04-03 04:32:48Z fenner $
| 22 * $FreeBSD: head/contrib/libpcap/scanner.l 98533 2002-06-21 01:38:14Z fenner $
|
23 */ 24 25#ifndef lint 26static const char rcsid[] =
| 23 */ 24 25#ifndef lint 26static const char rcsid[] =
|
27 "@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.70 2000/10/28 10:18:40 guy Exp $ (LBL)";
| 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> 36 37#include <ctype.h> 38#include <unistd.h> 39#include <string.h> 40 41#include "pcap-int.h" 42 43#include "gencode.h" 44#include <pcap-namedb.h> 45#ifdef INET6 46#include <netdb.h> 47#include <sys/socket.h> 48/* Workaround for AIX 4.3 */ 49#if !defined(AI_NUMERICHOST) 50#define AI_NUMERICHOST 0x04 51#endif 52#endif /*INET6*/ 53#include "tokdefs.h" 54 55#ifdef HAVE_OS_PROTO_H 56#include "os-proto.h" 57#endif 58 59static int stoi(char *); 60static inline int xdtoi(int); 61 62#ifdef FLEX_SCANNER 63#define YY_NO_UNPUT 64static YY_BUFFER_STATE in_buffer; 65#else 66static char *in_buffer; 67 68#undef getc 69#define getc(fp) (*in_buffer == 0 ? EOF : *in_buffer++) 70#endif 71 72#define yylval pcap_lval 73extern YYSTYPE yylval; 74 75%} 76 77N ([0-9]+|(0X|0x)[0-9A-Fa-f]+) 78B ([0-9A-Fa-f][0-9A-Fa-f]?) 79W ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?) 80 81%a 15000 82%o 17000 83%e 6000 84%k 4000 85%p 19000 86%n 2000 87 88V680 {W}:{W}:{W}:{W}:{W}:{W}:{W}:{W} 89 90V670 ::{W}:{W}:{W}:{W}:{W}:{W}:{W} 91V671 {W}::{W}:{W}:{W}:{W}:{W}:{W} 92V672 {W}:{W}::{W}:{W}:{W}:{W}:{W} 93V673 {W}:{W}:{W}::{W}:{W}:{W}:{W} 94V674 {W}:{W}:{W}:{W}::{W}:{W}:{W} 95V675 {W}:{W}:{W}:{W}:{W}::{W}:{W} 96V676 {W}:{W}:{W}:{W}:{W}:{W}::{W} 97V677 {W}:{W}:{W}:{W}:{W}:{W}:{W}:: 98 99V660 ::{W}:{W}:{W}:{W}:{W}:{W} 100V661 {W}::{W}:{W}:{W}:{W}:{W} 101V662 {W}:{W}::{W}:{W}:{W}:{W} 102V663 {W}:{W}:{W}::{W}:{W}:{W} 103V664 {W}:{W}:{W}:{W}::{W}:{W} 104V665 {W}:{W}:{W}:{W}:{W}::{W} 105V666 {W}:{W}:{W}:{W}:{W}:{W}:: 106 107V650 ::{W}:{W}:{W}:{W}:{W} 108V651 {W}::{W}:{W}:{W}:{W} 109V652 {W}:{W}::{W}:{W}:{W} 110V653 {W}:{W}:{W}::{W}:{W} 111V654 {W}:{W}:{W}:{W}::{W} 112V655 {W}:{W}:{W}:{W}:{W}:: 113 114V640 ::{W}:{W}:{W}:{W} 115V641 {W}::{W}:{W}:{W} 116V642 {W}:{W}::{W}:{W} 117V643 {W}:{W}:{W}::{W} 118V644 {W}:{W}:{W}:{W}:: 119 120V630 ::{W}:{W}:{W} 121V631 {W}::{W}:{W} 122V632 {W}:{W}::{W} 123V633 {W}:{W}:{W}:: 124 125V620 ::{W}:{W} 126V621 {W}::{W} 127V622 {W}:{W}:: 128 129V610 ::{W} 130V611 {W}:: 131 132V600 :: 133 134V6604 {W}:{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 135 136V6504 ::{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 137V6514 {W}::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 138V6524 {W}:{W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 139V6534 {W}:{W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N} 140V6544 {W}:{W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N} 141V6554 {W}:{W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N} 142 143V6404 ::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 144V6414 {W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 145V6424 {W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N} 146V6434 {W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N} 147V6444 {W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N} 148 149V6304 ::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 150V6314 {W}::{W}:{W}:{N}\.{N}\.{N}\.{N} 151V6324 {W}:{W}::{W}:{N}\.{N}\.{N}\.{N} 152V6334 {W}:{W}:{W}::{N}\.{N}\.{N}\.{N} 153 154V6204 ::{W}:{W}:{N}\.{N}\.{N}\.{N} 155V6214 {W}::{W}:{N}\.{N}\.{N}\.{N} 156V6224 {W}:{W}::{N}\.{N}\.{N}\.{N} 157 158V6104 ::{W}:{N}\.{N}\.{N}\.{N} 159V6114 {W}::{N}\.{N}\.{N}\.{N} 160 161V6004 ::{N}\.{N}\.{N}\.{N} 162 163 164V6 ({V680}|{V670}|{V671}|{V672}|{V673}|{V674}|{V675}|{V676}|{V677}|{V660}|{V661}|{V662}|{V663}|{V664}|{V665}|{V666}|{V650}|{V651}|{V652}|{V653}|{V654}|{V655}|{V640}|{V641}|{V642}|{V643}|{V644}|{V630}|{V631}|{V632}|{V633}|{V620}|{V621}|{V622}|{V610}|{V611}|{V600}|{V6604}|{V6504}|{V6514}|{V6524}|{V6534}|{V6544}|{V6554}|{V6404}|{V6414}|{V6424}|{V6434}|{V6444}|{V6304}|{V6314}|{V6324}|{V6334}|{V6204}|{V6214}|{V6224}|{V6104}|{V6114}|{V6004}) 165 166%% 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;
| 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> 36 37#include <ctype.h> 38#include <unistd.h> 39#include <string.h> 40 41#include "pcap-int.h" 42 43#include "gencode.h" 44#include <pcap-namedb.h> 45#ifdef INET6 46#include <netdb.h> 47#include <sys/socket.h> 48/* Workaround for AIX 4.3 */ 49#if !defined(AI_NUMERICHOST) 50#define AI_NUMERICHOST 0x04 51#endif 52#endif /*INET6*/ 53#include "tokdefs.h" 54 55#ifdef HAVE_OS_PROTO_H 56#include "os-proto.h" 57#endif 58 59static int stoi(char *); 60static inline int xdtoi(int); 61 62#ifdef FLEX_SCANNER 63#define YY_NO_UNPUT 64static YY_BUFFER_STATE in_buffer; 65#else 66static char *in_buffer; 67 68#undef getc 69#define getc(fp) (*in_buffer == 0 ? EOF : *in_buffer++) 70#endif 71 72#define yylval pcap_lval 73extern YYSTYPE yylval; 74 75%} 76 77N ([0-9]+|(0X|0x)[0-9A-Fa-f]+) 78B ([0-9A-Fa-f][0-9A-Fa-f]?) 79W ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?) 80 81%a 15000 82%o 17000 83%e 6000 84%k 4000 85%p 19000 86%n 2000 87 88V680 {W}:{W}:{W}:{W}:{W}:{W}:{W}:{W} 89 90V670 ::{W}:{W}:{W}:{W}:{W}:{W}:{W} 91V671 {W}::{W}:{W}:{W}:{W}:{W}:{W} 92V672 {W}:{W}::{W}:{W}:{W}:{W}:{W} 93V673 {W}:{W}:{W}::{W}:{W}:{W}:{W} 94V674 {W}:{W}:{W}:{W}::{W}:{W}:{W} 95V675 {W}:{W}:{W}:{W}:{W}::{W}:{W} 96V676 {W}:{W}:{W}:{W}:{W}:{W}::{W} 97V677 {W}:{W}:{W}:{W}:{W}:{W}:{W}:: 98 99V660 ::{W}:{W}:{W}:{W}:{W}:{W} 100V661 {W}::{W}:{W}:{W}:{W}:{W} 101V662 {W}:{W}::{W}:{W}:{W}:{W} 102V663 {W}:{W}:{W}::{W}:{W}:{W} 103V664 {W}:{W}:{W}:{W}::{W}:{W} 104V665 {W}:{W}:{W}:{W}:{W}::{W} 105V666 {W}:{W}:{W}:{W}:{W}:{W}:: 106 107V650 ::{W}:{W}:{W}:{W}:{W} 108V651 {W}::{W}:{W}:{W}:{W} 109V652 {W}:{W}::{W}:{W}:{W} 110V653 {W}:{W}:{W}::{W}:{W} 111V654 {W}:{W}:{W}:{W}::{W} 112V655 {W}:{W}:{W}:{W}:{W}:: 113 114V640 ::{W}:{W}:{W}:{W} 115V641 {W}::{W}:{W}:{W} 116V642 {W}:{W}::{W}:{W} 117V643 {W}:{W}:{W}::{W} 118V644 {W}:{W}:{W}:{W}:: 119 120V630 ::{W}:{W}:{W} 121V631 {W}::{W}:{W} 122V632 {W}:{W}::{W} 123V633 {W}:{W}:{W}:: 124 125V620 ::{W}:{W} 126V621 {W}::{W} 127V622 {W}:{W}:: 128 129V610 ::{W} 130V611 {W}:: 131 132V600 :: 133 134V6604 {W}:{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 135 136V6504 ::{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 137V6514 {W}::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 138V6524 {W}:{W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 139V6534 {W}:{W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N} 140V6544 {W}:{W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N} 141V6554 {W}:{W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N} 142 143V6404 ::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 144V6414 {W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 145V6424 {W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N} 146V6434 {W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N} 147V6444 {W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N} 148 149V6304 ::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} 150V6314 {W}::{W}:{W}:{N}\.{N}\.{N}\.{N} 151V6324 {W}:{W}::{W}:{N}\.{N}\.{N}\.{N} 152V6334 {W}:{W}:{W}::{N}\.{N}\.{N}\.{N} 153 154V6204 ::{W}:{W}:{N}\.{N}\.{N}\.{N} 155V6214 {W}::{W}:{N}\.{N}\.{N}\.{N} 156V6224 {W}:{W}::{N}\.{N}\.{N}\.{N} 157 158V6104 ::{W}:{N}\.{N}\.{N}\.{N} 159V6114 {W}::{N}\.{N}\.{N}\.{N} 160 161V6004 ::{N}\.{N}\.{N}\.{N} 162 163 164V6 ({V680}|{V670}|{V671}|{V672}|{V673}|{V674}|{V675}|{V676}|{V677}|{V660}|{V661}|{V662}|{V663}|{V664}|{V665}|{V666}|{V650}|{V651}|{V652}|{V653}|{V654}|{V655}|{V640}|{V641}|{V642}|{V643}|{V644}|{V630}|{V631}|{V632}|{V633}|{V620}|{V621}|{V622}|{V610}|{V611}|{V600}|{V6604}|{V6504}|{V6514}|{V6524}|{V6534}|{V6544}|{V6554}|{V6404}|{V6414}|{V6424}|{V6434}|{V6444}|{V6304}|{V6314}|{V6324}|{V6334}|{V6204}|{V6214}|{V6224}|{V6104}|{V6114}|{V6004}) 165 166%% 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;
|
175tcp return TCP; 176udp return UDP; 177icmp return ICMP; 178igmp return IGMP; 179igrp return IGRP; 180pim return PIM;
| 176tcp return TCP; 177udp return UDP; 178icmp return ICMP; 179igmp return IGMP; 180igrp return IGRP; 181pim return PIM;
|
| 182vrrp return VRRP;
|
181
| 183
|
182ip6 return IPV6; 183icmp6 return ICMPV6;
| 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 }
|
184ah return AH; 185esp return ESP; 186 187atalk return ATALK; 188aarp return AARP; 189decnet return DECNET; 190lat return LAT; 191sca return SCA; 192moprc return MOPRC; 193mopdl return MOPDL; 194 195iso return ISO; 196esis return ESIS; 197es-is return ESIS; 198isis return ISIS; 199is-is return ISIS; 200clnp return CLNP; 201
| 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
|
202host return HOST; 203net return NET; 204mask return MASK; 205port return PORT; 206proto return PROTO; 207protochain { 208#ifdef NO_PROTOCHAIN 209 bpf_error("%s not supported", yytext); 210#else 211 return PROTOCHAIN; 212#endif 213 } 214 215gateway return GATEWAY; 216 217less return LESS; 218greater return GREATER; 219byte return BYTE; 220broadcast return TK_BROADCAST; 221multicast return TK_MULTICAST; 222 223and|"&&" return AND; 224or|"||" return OR; 225not return '!'; 226 227len|length return LEN; 228inbound return INBOUND; 229outbound return OUTBOUND; 230 231vlan return VLAN; 232 233[ \n\t] ; 234[+\-*/:\[\]!<>()&|=] return yytext[0]; 235">=" return GEQ; 236"<=" return LEQ; 237"!=" return NEQ; 238"==" return '='; 239"<<" return LSH; 240">>" return RSH;
| 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); 230#else 231 return PROTOCHAIN; 232#endif 233 } 234 235gateway return GATEWAY; 236 237less return LESS; 238greater return GREATER; 239byte return BYTE; 240broadcast return TK_BROADCAST; 241multicast return TK_MULTICAST; 242 243and|"&&" return AND; 244or|"||" return OR; 245not return '!'; 246 247len|length return LEN; 248inbound return INBOUND; 249outbound return OUTBOUND; 250 251vlan return VLAN; 252 253[ \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; }
|
241{N} { yylval.i = stoi((char *)yytext); return NUM; } 242({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) { 243 yylval.s = sdup((char *)yytext); return HID; } 244{B}:{B}:{B}:{B}:{B}:{B} { yylval.e = pcap_ether_aton((char *)yytext); 245 return EID; } 246{V6} { 247#ifdef INET6 248 struct addrinfo hints, *res; 249 memset(&hints, 0, sizeof(hints)); 250 hints.ai_family = AF_INET6; 251 hints.ai_flags = AI_NUMERICHOST; 252 if (getaddrinfo(yytext, NULL, &hints, &res)) 253 bpf_error("bogus IPv6 address %s", yytext); 254 else { 255 yylval.e = sdup((char *)yytext); return HID6; 256 } 257#else 258 bpf_error("IPv6 address %s not supported", yytext); 259#endif /*INET6*/ 260 } 261{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); }
| 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; 271 memset(&hints, 0, sizeof(hints)); 272 hints.ai_family = AF_INET6; 273 hints.ai_flags = AI_NUMERICHOST; 274 if (getaddrinfo(yytext, NULL, &hints, &res)) 275 bpf_error("bogus IPv6 address %s", yytext); 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); }
|
262[A-Za-z0-9][-_.A-Za-z0-9]*[.A-Za-z0-9] {
| 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])? {
|
263 yylval.s = sdup((char *)yytext); return ID; } 264"\\"[^ !()\n\t]+ { yylval.s = sdup((char *)yytext + 1); return ID; }
| 309 yylval.s = sdup((char *)yytext); return ID; } 310"\\"[^ !()\n\t]+ { yylval.s = sdup((char *)yytext + 1); return ID; }
|
265[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+i { 266 bpf_error("illegal token: %s\n", yytext); }
| 311[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+ { 312 bpf_error("illegal token: %s", yytext); }
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267. { bpf_error("illegal char '%c'", *yytext); } 268%% 269void 270lex_init(buf) 271 char *buf; 272{ 273#ifdef FLEX_SCANNER 274 in_buffer = yy_scan_string(buf); 275#else 276 in_buffer = buf; 277#endif 278} 279 280/* 281 * Do any cleanup necessary after parsing. 282 */ 283void 284lex_cleanup() 285{ 286#ifdef FLEX_SCANNER 287 if (in_buffer != NULL) 288 yy_delete_buffer(in_buffer); 289 in_buffer = NULL; 290#endif 291} 292 293/* 294 * Also define a yywrap. Note that if we're using flex, it will 295 * define a macro to map this identifier to pcap_wrap. 296 */ 297int 298yywrap() 299{ 300 return 1; 301} 302 303/* Hex digit to integer. */ 304static inline int 305xdtoi(c) 306 register int c; 307{ 308 if (isdigit(c)) 309 return c - '0'; 310 else if (islower(c)) 311 return c - 'a' + 10; 312 else 313 return c - 'A' + 10; 314} 315 316/* 317 * Convert string to integer. Just like atoi(), but checks for 318 * preceding 0x or 0 and uses hex or octal instead of decimal. 319 */ 320static int 321stoi(s) 322 char *s; 323{ 324 int base = 10; 325 int n = 0; 326 327 if (*s == '0') { 328 if (s[1] == 'x' || s[1] == 'X') { 329 s += 2; 330 base = 16; 331 } 332 else { 333 base = 8; 334 s += 1; 335 } 336 } 337 while (*s) 338 n = n * base + xdtoi(*s++); 339 340 return n; 341}
| 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); 321#else 322 in_buffer = buf; 323#endif 324} 325 326/* 327 * Do any cleanup necessary after parsing. 328 */ 329void 330lex_cleanup() 331{ 332#ifdef FLEX_SCANNER 333 if (in_buffer != NULL) 334 yy_delete_buffer(in_buffer); 335 in_buffer = NULL; 336#endif 337} 338 339/* 340 * Also define a yywrap. Note that if we're using flex, it will 341 * define a macro to map this identifier to pcap_wrap. 342 */ 343int 344yywrap() 345{ 346 return 1; 347} 348 349/* Hex digit to integer. */ 350static inline int 351xdtoi(c) 352 register int c; 353{ 354 if (isdigit(c)) 355 return c - '0'; 356 else if (islower(c)) 357 return c - 'a' + 10; 358 else 359 return c - 'A' + 10; 360} 361 362/* 363 * Convert string to integer. Just like atoi(), but checks for 364 * preceding 0x or 0 and uses hex or octal instead of decimal. 365 */ 366static int 367stoi(s) 368 char *s; 369{ 370 int base = 10; 371 int n = 0; 372 373 if (*s == '0') { 374 if (s[1] == 'x' || s[1] == 'X') { 375 s += 2; 376 base = 16; 377 } 378 else { 379 base = 8; 380 s += 1; 381 } 382 } 383 while (*s) 384 n = n * base + xdtoi(*s++); 385 386 return n; 387}
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