1 /* $KAME: lexer.l,v 1.7 2000/11/08 02:40:53 itojun Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 %{ 35 #include <sys/param.h> 36 #include <sys/ioctl.h> 37 #include <sys/socket.h> 38 #include <sys/queue.h> 39 40 #include <string.h> 41 42 #include <net/if.h> 43 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 44 #include <net/if_var.h> 45 #endif /* __FreeBSD__ >= 3 */ 46 47 #include <netinet/in.h> 48 #include <netinet/in_var.h> 49 #include <netinet/icmp6.h> 50 51 #include <arpa/inet.h> 52 53 #include "y.tab.h" 54 55 int lineno = 1; 56 57 #define LINEBUF_SIZE 1000 58 char linebuf[LINEBUF_SIZE]; 59 60 int parse(FILE **); 61 void yyerror(const char *); 62 int yylex(void); 63 %} 64 65 %option nounput 66 67 /* common section */ 68 nl \n 69 ws [ \t]+ 70 digit [0-9] 71 letter [0-9A-Za-z] 72 hexdigit [0-9A-Fa-f] 73 special [()+\|\?\*,] 74 dot \. 75 hyphen \- 76 colon \: 77 slash \/ 78 bcl \{ 79 ecl \} 80 semi \; 81 usec {dot}{digit}{1,6} 82 comment \#.* 83 qstring \"[^"]*\" 84 decstring {digit}+ 85 hexpair {hexdigit}{hexdigit} 86 hexstring 0[xX]{hexdigit}+ 87 octetstring {octet}({dot}{octet})+ 88 ipv4addr {digit}{1,3}({dot}{digit}{1,3}){0,3} 89 ipv6addr {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7} 90 ipaddrmask {slash}{digit}{1,3} 91 keyword {letter}{letter}+ 92 name {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))* 93 hostname {name}(({dot}{name})+{dot}?)? 94 95 timeval {digit}{0,2} 96 days d{timeval} 97 hours h{timeval} 98 minutes m{timeval} 99 seconds s{timeval} 100 101 mprefix match_prefix|match-prefix 102 uprefix use_prefix|use-prefix 103 104 %% 105 /* rrenumd keywords */ 106 debug { 107 return(DEBUG_CMD); 108 } 109 dest { 110 return(DEST_CMD); 111 } 112 retry { 113 return(RETRY_CMD); 114 } 115 seqnum { 116 return(SEQNUM_CMD); 117 } 118 add { 119 yylval.num = RPM_PCO_ADD; 120 return(ADD); 121 } 122 change { 123 yylval.num = RPM_PCO_CHANGE; 124 return(CHANGE); 125 } 126 setglobal { 127 yylval.num = RPM_PCO_SETGLOBAL; 128 return(SETGLOBAL); 129 } 130 {mprefix} { 131 return(MATCH_PREFIX_CMD); 132 } 133 maxlen { 134 return(MAXLEN_CMD); 135 } 136 minlen { 137 return(MINLEN_CMD); 138 } 139 {uprefix} { 140 return(USE_PREFIX_CMD); 141 } 142 keeplen { 143 return(KEEPLEN_CMD); 144 } 145 146 vltime { 147 return(VLTIME_CMD); 148 } 149 pltime { 150 return(PLTIME_CMD); 151 } 152 raf_onlink { 153 return(RAF_ONLINK_CMD); 154 } 155 raf_auto { 156 return(RAF_AUTO_CMD); 157 } 158 rrf_decrvalid { 159 return(RAF_DECRVALID_CMD); 160 } 161 rrf_decrprefd { 162 return(RAF_DECRPREFD_CMD); 163 } 164 {days} { 165 yytext++; 166 yylval.num = atoi(yytext); 167 return(DAYS); 168 } 169 {hours} { 170 yytext++; 171 yylval.num = atoi(yytext); 172 return(HOURS); 173 } 174 {minutes} { 175 yytext++; 176 yylval.num = atoi(yytext); 177 return(MINUTES); 178 } 179 {seconds} { 180 yytext++; 181 yylval.num = atoi(yytext); 182 return(SECONDS); 183 } 184 infinity { 185 return(INFINITY); 186 } 187 188 on { 189 yylval.num = 1; 190 return(ON); 191 } 192 off { 193 yylval.num = 0; 194 return(OFF); 195 } 196 197 /* basic rules */ 198 {ws} ; 199 {nl} { 200 lineno++; 201 } 202 {semi} { 203 return EOS; 204 } 205 {bcl} { 206 return BCL; 207 } 208 {ecl} { 209 return ECL; 210 } 211 {qstring} { 212 yylval.cs.cp = yytext; 213 yylval.cs.len = yyleng; 214 return QSTRING; 215 } 216 {decstring} { 217 yylval.cs.cp = yytext; 218 yylval.cs.len = yyleng; 219 return DECSTRING; 220 } 221 {name} { 222 yylval.cs.cp = yytext; 223 yylval.cs.len = yyleng; 224 return NAME; 225 } 226 {ipv4addr} { 227 memset(&yylval.addr4, 0, sizeof(struct in_addr)); 228 if (inet_pton(AF_INET, yytext, 229 &yylval.addr4) == 1) { 230 return IPV4ADDR; 231 } else { 232 return ERROR; 233 } 234 } 235 {ipv6addr} { 236 memset(&yylval.addr6, 0, sizeof(struct in6_addr)); 237 if (inet_pton(AF_INET6, yytext, 238 &yylval.addr6) == 1) { 239 return IPV6ADDR; 240 } else { 241 return ERROR; 242 } 243 } 244 {ipaddrmask} { 245 yytext++; 246 yylval.num = atoi(yytext); 247 return(PREFIXLEN); 248 } 249 {hostname} { 250 yylval.cs.cp = yytext; 251 yylval.cs.len = yyleng; 252 return HOSTNAME; 253 } 254 %% 255 256 int parse(FILE **fp) 257 { 258 extern int yyparse(void); 259 260 yyin = *fp; 261 262 if (yyparse()) 263 return(-1); 264 265 return(0); 266 267 } 268 269 void 270 yyerror(const char *s) 271 { 272 printf("%s: at %s in line %d\n", s, yytext, lineno); 273 } 274