usr.sbin/rrenumd/lexer.l

   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 #include <netinet/in.h>
  44 #include <netinet/in_var.h>
  45 #include <netinet/icmp6.h>
  46
  47 #include <arpa/inet.h>
  48
  49 #include "y.tab.h"
  50
  51 int lineno = 1;
  52
  53 #define LINEBUF_SIZE 1000
  54 char linebuf[LINEBUF_SIZE];
  55
  56 int parse(FILE **);
  57 void yyerror(const char *);
  58 int yylex(void);
  59 %}
  60
  61 %option nounput
  62
  63 /* common section */
  64 nl              \n
  65 ws              [ \t]+
  66 digit           [0-9]
  67 letter          [0-9A-Za-z]
  68 hexdigit        [0-9A-Fa-f]
  69 special         [()+\|\?\*,]
  70 dot             \.
  71 hyphen          \-
  72 colon           \:
  73 slash           \/
  74 bcl             \{
  75 ecl             \}
  76 semi            \;
  77 usec            {dot}{digit}{1,6}
  78 comment         \#.*
  79 qstring         \"[^"]*\"
  80 decstring       {digit}+
  81 hexpair         {hexdigit}{hexdigit}
  82 hexstring       0[xX]{hexdigit}+
  83 octetstring     {octet}({dot}{octet})+
  84 ipv4addr        {digit}{1,3}({dot}{digit}{1,3}){0,3}
  85 ipv6addr        {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
  86 ipaddrmask      {slash}{digit}{1,3}
  87 keyword         {letter}{letter}+
  88 name            {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
  89 hostname        {name}(({dot}{name})+{dot}?)?
  90
  91 timeval         {digit}{0,2}
  92 days            d{timeval}
  93 hours           h{timeval}
  94 minutes         m{timeval}
  95 seconds         s{timeval}
  96
  97 mprefix         match_prefix|match-prefix
  98 uprefix         use_prefix|use-prefix
  99
 100 %%
 101         /* rrenumd keywords */
 102 debug           {
 103                         return(DEBUG_CMD);
 104                 }
 105 dest            {
 106                         return(DEST_CMD);
 107                 }
 108 retry           {
 109                         return(RETRY_CMD);
 110                 }
 111 seqnum          {
 112                         return(SEQNUM_CMD);
 113                 }
 114 add             {
 115                         yylval.num = RPM_PCO_ADD;
 116                         return(ADD);
 117                 }
 118 change          {
 119                         yylval.num = RPM_PCO_CHANGE;
 120                         return(CHANGE);
 121                  }
 122 setglobal       {
 123                         yylval.num = RPM_PCO_SETGLOBAL;
 124                         return(SETGLOBAL);
 125                 }
 126 {mprefix}       {
 127                         return(MATCH_PREFIX_CMD);
 128                 }
 129 maxlen          {
 130                         return(MAXLEN_CMD);
 131                 }
 132 minlen          {
 133                         return(MINLEN_CMD);
 134                 }
 135 {uprefix}       {
 136                         return(USE_PREFIX_CMD);
 137                 }
 138 keeplen         {
 139                         return(KEEPLEN_CMD);
 140                 }
 141
 142 vltime          {
 143                         return(VLTIME_CMD);
 144                 }
 145 pltime          {
 146                         return(PLTIME_CMD);
 147                 }
 148 raf_onlink      {
 149                         return(RAF_ONLINK_CMD);
 150                 }
 151 raf_auto        {
 152                         return(RAF_AUTO_CMD);
 153                 }
 154 rrf_decrvalid   {
 155                         return(RAF_DECRVALID_CMD);
 156                 }
 157 rrf_decrprefd   {
 158                         return(RAF_DECRPREFD_CMD);
 159                 }
 160 {days}          {
 161                         yytext++;
 162                         yylval.num = atoi(yytext);
 163                         return(DAYS);
 164                 }
 165 {hours}         {
 166                         yytext++;
 167                         yylval.num = atoi(yytext);
 168                         return(HOURS);
 169                 }
 170 {minutes}       {
 171                         yytext++;
 172                         yylval.num = atoi(yytext);
 173                         return(MINUTES);
 174                 }
 175 {seconds}       {
 176                         yytext++;
 177                         yylval.num = atoi(yytext);
 178                         return(SECONDS);
 179                 }
 180 infinity        {
 181                         return(INFINITY);
 182                 }
 183
 184 on              {
 185                         yylval.num = 1;
 186                         return(ON);
 187                 }
 188 off             {
 189                         yylval.num = 0;
 190                         return(OFF);
 191                 }
 192
 193         /* basic rules */
 194 {ws}            ;
 195 {nl}            {
 196                         lineno++;
 197                 }
 198 {semi}          {
 199                         return EOS;
 200                 }
 201 {bcl}           {
 202                         return BCL;
 203                 }
 204 {ecl}           {
 205                         return ECL;
 206                 }
 207 {qstring}       {
 208                         yylval.cs.cp = yytext;
 209                         yylval.cs.len = yyleng;
 210                         return QSTRING;
 211                 }
 212 {decstring}     {
 213                         yylval.cs.cp = yytext;
 214                         yylval.cs.len = yyleng;
 215                         return DECSTRING;
 216                 }
 217 {name}          {
 218                         yylval.cs.cp = yytext;
 219                         yylval.cs.len = yyleng;
 220                         return NAME;
 221                 }
 222 {ipv4addr}      {
 223                         memset(&yylval.addr4, 0, sizeof(struct in_addr));
 224                         if (inet_pton(AF_INET, yytext,
 225                                       &yylval.addr4) == 1) {
 226                                 return IPV4ADDR;
 227                         } else {
 228                                 return ERROR;
 229                         }
 230                 }
 231 {ipv6addr}      {
 232                         memset(&yylval.addr6, 0, sizeof(struct in6_addr));
 233                         if (inet_pton(AF_INET6, yytext,
 234                                       &yylval.addr6) == 1) {
 235                                 return IPV6ADDR;
 236                         } else {
 237                                 return ERROR;
 238                         }
 239                 }
 240 {ipaddrmask}    {
 241                         yytext++;
 242                         yylval.num = atoi(yytext);
 243                         return(PREFIXLEN);
 244                 }
 245 {hostname}      {
 246                         yylval.cs.cp = yytext;
 247                         yylval.cs.len = yyleng;
 248                         return HOSTNAME;
 249                 }
 250 %%
 251
 252 int parse(FILE **fp)
 253 {
 254         extern int yyparse(void);
 255
 256         yyin = *fp;
 257
 258         if (yyparse())
 259                 return(-1);
 260
 261         return(0);
 262
 263 }
 264
 265 void
 266 yyerror(const char *s)
 267 {
 268         printf("%s: at %s in line %d\n", s, yytext, lineno);
 269 }