usr.sbin/rrenumd/lexer.l

   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
  53 int lineno = 1;
  54
  55 #define LINEBUF_SIZE 1000
  56 char linebuf[LINEBUF_SIZE];
  57
  58 int parse(FILE **);
  59 void yyerror(const char *);
  60 int yylex(void);
  61 %}
  62
  63 %option nounput
  64
  65 /* common section */
  66 nl              \n
  67 ws              [ \t]+
  68 digit           [0-9]
  69 letter          [0-9A-Za-z]
  70 hexdigit        [0-9A-Fa-f]
  71 special         [()+\|\?\*,]
  72 dot             \.
  73 hyphen          \-
  74 colon           \:
  75 slash           \/
  76 bcl             \{
  77 ecl             \}
  78 semi            \;
  79 usec            {dot}{digit}{1,6}
  80 comment         \#.*
  81 qstring         \"[^"]*\"
  82 decstring       {digit}+
  83 hexpair         {hexdigit}{hexdigit}
  84 hexstring       0[xX]{hexdigit}+
  85 octetstring     {octet}({dot}{octet})+
  86 ipv4addr        {digit}{1,3}({dot}{digit}{1,3}){0,3}
  87 ipv6addr        {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
  88 ipaddrmask      {slash}{digit}{1,3}
  89 keyword         {letter}{letter}+
  90 name            {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
  91 hostname        {name}(({dot}{name})+{dot}?)?
  92
  93 timeval         {digit}{0,2}
  94 days            d{timeval}
  95 hours           h{timeval}
  96 minutes         m{timeval}
  97 seconds         s{timeval}
  98
  99 mprefix         match_prefix|match-prefix
 100 uprefix         use_prefix|use-prefix
 101
 102 %%
 103         /* rrenumd keywords */
 104 debug           {
 105                         return(DEBUG_CMD);
 106                 }
 107 dest            {
 108                         return(DEST_CMD);
 109                 }
 110 retry           {
 111                         return(RETRY_CMD);
 112                 }
 113 seqnum          {
 114                         return(SEQNUM_CMD);
 115                 }
 116 add             {
 117                         yylval.num = RPM_PCO_ADD;
 118                         return(ADD);
 119                 }
 120 change          {
 121                         yylval.num = RPM_PCO_CHANGE;
 122                         return(CHANGE);
 123                  }
 124 setglobal       {
 125                         yylval.num = RPM_PCO_SETGLOBAL;
 126                         return(SETGLOBAL);
 127                 }
 128 {mprefix}       {
 129                         return(MATCH_PREFIX_CMD);
 130                 }
 131 maxlen          {
 132                         return(MAXLEN_CMD);
 133                 }
 134 minlen          {
 135                         return(MINLEN_CMD);
 136                 }
 137 {uprefix}       {
 138                         return(USE_PREFIX_CMD);
 139                 }
 140 keeplen         {
 141                         return(KEEPLEN_CMD);
 142                 }
 143
 144 vltime          {
 145                         return(VLTIME_CMD);
 146                 }
 147 pltime          {
 148                         return(PLTIME_CMD);
 149                 }
 150 raf_onlink      {
 151                         return(RAF_ONLINK_CMD);
 152                 }
 153 raf_auto        {
 154                         return(RAF_AUTO_CMD);
 155                 }
 156 rrf_decrvalid   {
 157                         return(RAF_DECRVALID_CMD);
 158                 }
 159 rrf_decrprefd   {
 160                         return(RAF_DECRPREFD_CMD);
 161                 }
 162 {days}          {
 163                         yytext++;
 164                         yylval.num = atoi(yytext);
 165                         return(DAYS);
 166                 }
 167 {hours}         {
 168                         yytext++;
 169                         yylval.num = atoi(yytext);
 170                         return(HOURS);
 171                 }
 172 {minutes}       {
 173                         yytext++;
 174                         yylval.num = atoi(yytext);
 175                         return(MINUTES);
 176                 }
 177 {seconds}       {
 178                         yytext++;
 179                         yylval.num = atoi(yytext);
 180                         return(SECONDS);
 181                 }
 182 infinity        {
 183                         return(INFINITY);
 184                 }
 185
 186 on              {
 187                         yylval.num = 1;
 188                         return(ON);
 189                 }
 190 off             {
 191                         yylval.num = 0;
 192                         return(OFF);
 193                 }
 194
 195         /* basic rules */
 196 {ws}            ;
 197 {nl}            {
 198                         lineno++;
 199                 }
 200 {semi}          {
 201                         return EOS;
 202                 }
 203 {bcl}           {
 204                         return BCL;
 205                 }
 206 {ecl}           {
 207                         return ECL;
 208                 }
 209 {qstring}       {
 210                         yylval.cs.cp = yytext;
 211                         yylval.cs.len = yyleng;
 212                         return QSTRING;
 213                 }
 214 {decstring}     {
 215                         yylval.cs.cp = yytext;
 216                         yylval.cs.len = yyleng;
 217                         return DECSTRING;
 218                 }
 219 {name}          {
 220                         yylval.cs.cp = yytext;
 221                         yylval.cs.len = yyleng;
 222                         return NAME;
 223                 }
 224 {ipv4addr}      {
 225                         memset(&yylval.addr4, 0, sizeof(struct in_addr));
 226                         if (inet_pton(AF_INET, yytext,
 227                                       &yylval.addr4) == 1) {
 228                                 return IPV4ADDR;
 229                         } else {
 230                                 return ERROR;
 231                         }
 232                 }
 233 {ipv6addr}      {
 234                         memset(&yylval.addr6, 0, sizeof(struct in6_addr));
 235                         if (inet_pton(AF_INET6, yytext,
 236                                       &yylval.addr6) == 1) {
 237                                 return IPV6ADDR;
 238                         } else {
 239                                 return ERROR;
 240                         }
 241                 }
 242 {ipaddrmask}    {
 243                         yytext++;
 244                         yylval.num = atoi(yytext);
 245                         return(PREFIXLEN);
 246                 }
 247 {hostname}      {
 248                         yylval.cs.cp = yytext;
 249                         yylval.cs.len = yyleng;
 250                         return HOSTNAME;
 251                 }
 252 %%
 253
 254 int parse(FILE **fp)
 255 {
 256         extern int yyparse(void);
 257
 258         yyin = *fp;
 259
 260         if (yyparse())
 261                 return(-1);
 262
 263         return(0);
 264
 265 }
 266
 267 void
 268 yyerror(const char *s)
 269 {
 270         printf("%s: at %s in line %d\n", s, yytext, lineno);
 271 }