1/* $KAME: lexer.l,v 1.7 2000/11/08 02:40:53 itojun Exp $ */ 2 3/*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 36%{ 37#include <sys/param.h> 38#include <sys/ioctl.h> 39#include <sys/socket.h> 40#include <sys/queue.h> 41 42#include <string.h> 43 44#include <net/if.h> 45#include <netinet/in.h> 46#include <netinet/in_var.h> 47#include <netinet/icmp6.h> 48 49#include <arpa/inet.h> 50 51#include "y.tab.h" 52 53int lineno = 1; 54 55#define LINEBUF_SIZE 1000 56char linebuf[LINEBUF_SIZE]; 57 58int parse(FILE **); 59void yyerror(const char *); 60int yylex(void); 61%} 62 63%option noyywrap 64%option nounput 65 66/* common section */ 67nl \n 68ws [ \t]+ 69digit [0-9] 70letter [0-9A-Za-z] 71hexdigit [0-9A-Fa-f] 72special [()+\|\?\*,] 73dot \. 74hyphen \- 75colon \: 76slash \/ 77bcl \{ 78ecl \} 79semi \; 80usec {dot}{digit}{1,6} 81comment \#.* 82qstring \"[^"]*\" 83decstring {digit}+ 84hexpair {hexdigit}{hexdigit} 85hexstring 0[xX]{hexdigit}+ 86octetstring {octet}({dot}{octet})+ 87ipv4addr {digit}{1,3}({dot}{digit}{1,3}){0,3} 88ipv6addr {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7} 89ipaddrmask {slash}{digit}{1,3} 90keyword {letter}{letter}+ 91name {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))* 92hostname {name}(({dot}{name})+{dot}?)? 93 94timeval {digit}{0,2} 95days d{timeval} 96hours h{timeval} 97minutes m{timeval} 98seconds s{timeval} 99 100mprefix match_prefix|match-prefix 101uprefix use_prefix|use-prefix 102 103%% 104 /* rrenumd keywords */ 105debug { 106 return(DEBUG_CMD); 107 } 108dest { 109 return(DEST_CMD); 110 } 111retry { 112 return(RETRY_CMD); 113 } 114seqnum { 115 return(SEQNUM_CMD); 116 } 117add { 118 yylval.num = RPM_PCO_ADD; 119 return(ADD); 120 } 121change { 122 yylval.num = RPM_PCO_CHANGE; 123 return(CHANGE); 124 } 125setglobal { 126 yylval.num = RPM_PCO_SETGLOBAL; 127 return(SETGLOBAL); 128 } 129{mprefix} { 130 return(MATCH_PREFIX_CMD); 131 } 132maxlen { 133 return(MAXLEN_CMD); 134 } 135minlen { 136 return(MINLEN_CMD); 137 } 138{uprefix} { 139 return(USE_PREFIX_CMD); 140 } 141keeplen { 142 return(KEEPLEN_CMD); 143 } 144 145vltime { 146 return(VLTIME_CMD); 147 } 148pltime { 149 return(PLTIME_CMD); 150 } 151raf_onlink { 152 return(RAF_ONLINK_CMD); 153 } 154raf_auto { 155 return(RAF_AUTO_CMD); 156 } 157rrf_decrvalid { 158 return(RAF_DECRVALID_CMD); 159 } 160rrf_decrprefd { 161 return(RAF_DECRPREFD_CMD); 162 } 163{days} { 164 yytext++; 165 yylval.num = atoi(yytext); 166 return(DAYS); 167 } 168{hours} { 169 yytext++; 170 yylval.num = atoi(yytext); 171 return(HOURS); 172 } 173{minutes} { 174 yytext++; 175 yylval.num = atoi(yytext); 176 return(MINUTES); 177 } 178{seconds} { 179 yytext++; 180 yylval.num = atoi(yytext); 181 return(SECONDS); 182 } 183infinity { 184 return(INFINITY); 185 } 186 187on { 188 yylval.num = 1; 189 return(ON); 190 } 191off { 192 yylval.num = 0; 193 return(OFF); 194 } 195 196 /* basic rules */ 197{ws} ; 198{nl} { 199 lineno++; 200 } 201{semi} { 202 return EOS; 203 } 204{bcl} { 205 return BCL; 206 } 207{ecl} { 208 return ECL; 209 } 210{qstring} { 211 yylval.cs.cp = yytext; 212 yylval.cs.len = yyleng; 213 return QSTRING; 214 } 215{decstring} { 216 yylval.cs.cp = yytext; 217 yylval.cs.len = yyleng; 218 return DECSTRING; 219 } 220{name} { 221 yylval.cs.cp = yytext; 222 yylval.cs.len = yyleng; 223 return NAME; 224 } 225{ipv4addr} { 226 memset(&yylval.addr4, 0, sizeof(struct in_addr)); 227 if (inet_pton(AF_INET, yytext, 228 &yylval.addr4) == 1) { 229 return IPV4ADDR; 230 } else { 231 return ERROR; 232 } 233 } 234{ipv6addr} { 235 memset(&yylval.addr6, 0, sizeof(struct in6_addr)); 236 if (inet_pton(AF_INET6, yytext, 237 &yylval.addr6) == 1) { 238 return IPV6ADDR; 239 } else { 240 return ERROR; 241 } 242 } 243{ipaddrmask} { 244 yytext++; 245 yylval.num = atoi(yytext); 246 return(PREFIXLEN); 247 } 248{hostname} { 249 yylval.cs.cp = yytext; 250 yylval.cs.len = yyleng; 251 return HOSTNAME; 252 } 253%% 254 255int parse(FILE **fp) 256{ 257 extern int yyparse(void); 258 259 yyin = *fp; 260 261 if (yyparse()) 262 return(-1); 263 264 return(0); 265 266} 267 268void 269yyerror(const char *s) 270{ 271 printf("%s: at %s in line %d\n", s, yytext, lineno); 272} 273