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: src/usr.sbin/rrenumd/lexer.l,v 1.1.2.2 2001/07/03 11:02:10 ume Exp $
  32  * $DragonFly: src/usr.sbin/rrenumd/lexer.l,v 1.4 2004/02/10 02:59:43 rob Exp $
  33  */
  34
  35 %{
  36 #define YY_NO_UNPUT
  37
  38 #include <sys/param.h>
  39 #include <sys/ioctl.h>
  40 #include <sys/socket.h>
  41 #include <sys/queue.h>
  42
  43 #include <string.h>
  44
  45 #include <net/if.h>
  46 #if defined(__DragonFly__)
  47 #include <net/if_var.h>
  48 #endif /* __DragonFly__  */
  49
  50 #include <netinet/in.h>
  51 #include <netinet/in_var.h>
  52 #include <netinet/icmp6.h>
  53
  54 #include <arpa/inet.h>
  55
  56 #include "y.tab.h"
  57
  58 int lineno = 1;
  59
  60 #define LINEBUF_SIZE 1000
  61 char linebuf[LINEBUF_SIZE];
  62
  63 int parse(FILE **);
  64 void yyerror(const char *);
  65 int yylex(void);
  66 %}
  67
  68 /* common section */
  69 nl              \n
  70 ws              [ \t]+
  71 digit           [0-9]
  72 letter          [0-9A-Za-z]
  73 hexdigit        [0-9A-Fa-f]
  74 special         [()+\|\?\*,]
  75 dot             \.
  76 hyphen          \-
  77 colon           \:
  78 slash           \/
  79 bcl             \{
  80 ecl             \}
  81 semi            \;
  82 usec            {dot}{digit}{1,6}
  83 comment         \#.*
  84 qstring         \"[^"]*\"
  85 decstring       {digit}+
  86 hexpair         {hexdigit}{hexdigit}
  87 hexstring       0[xX]{hexdigit}+
  88 octetstring     {octet}({dot}{octet})+
  89 ipv4addr        {digit}{1,3}({dot}{digit}{1,3}){0,3}
  90 ipv6addr        {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
  91 ipaddrmask      {slash}{digit}{1,3}
  92 keyword         {letter}{letter}+
  93 name            {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
  94 hostname        {name}(({dot}{name})+{dot}?)?
  95
  96 timeval         {digit}{0,2}
  97 days            d{timeval}
  98 hours           h{timeval}
  99 minutes         m{timeval}
 100 seconds         s{timeval}
 101
 102 mprefix         match_prefix|match-prefix
 103 uprefix         use_prefix|use-prefix
 104
 105 %%
 106         /* rrenumd keywords */
 107 debug           {
 108                         return(DEBUG_CMD);
 109                 }
 110 dest            {
 111                         return(DEST_CMD);
 112                 }
 113 retry           {
 114                         return(RETRY_CMD);
 115                 }
 116 seqnum          {
 117                         return(SEQNUM_CMD);
 118                 }
 119 add             {
 120                         yylval.num = RPM_PCO_ADD;
 121                         return(ADD);
 122                 }
 123 change          {
 124                         yylval.num = RPM_PCO_CHANGE;
 125                         return(CHANGE);
 126                  }
 127 setglobal       {
 128                         yylval.num = RPM_PCO_SETGLOBAL;
 129                         return(SETGLOBAL);
 130                 }
 131 {mprefix}       {
 132                         return(MATCH_PREFIX_CMD);
 133                 }
 134 maxlen          {
 135                         return(MAXLEN_CMD);
 136                 }
 137 minlen          {
 138                         return(MINLEN_CMD);
 139                 }
 140 {uprefix}       {
 141                         return(USE_PREFIX_CMD);
 142                 }
 143 keeplen         {
 144                         return(KEEPLEN_CMD);
 145                 }
 146
 147 vltime          {
 148                         return(VLTIME_CMD);
 149                 }
 150 pltime          {
 151                         return(PLTIME_CMD);
 152                 }
 153 raf_onlink      {
 154                         return(RAF_ONLINK_CMD);
 155                 }
 156 raf_auto        {
 157                         return(RAF_AUTO_CMD);
 158                 }
 159 rrf_decrvalid   {
 160                         return(RAF_DECRVALID_CMD);
 161                 }
 162 rrf_decrprefd   {
 163                         return(RAF_DECRPREFD_CMD);
 164                 }
 165 {days}          {
 166                         yytext++;
 167                         yylval.num = atoi(yytext);
 168                         return(DAYS);
 169                 }
 170 {hours}         {
 171                         yytext++;
 172                         yylval.num = atoi(yytext);
 173                         return(HOURS);
 174                 }
 175 {minutes}       {
 176                         yytext++;
 177                         yylval.num = atoi(yytext);
 178                         return(MINUTES);
 179                 }
 180 {seconds}       {
 181                         yytext++;
 182                         yylval.num = atoi(yytext);
 183                         return(SECONDS);
 184                 }
 185 infinity        {
 186                         return(INFINITY);
 187                 }
 188
 189 on              {
 190                         yylval.num = 1;
 191                         return(ON);
 192                 }
 193 off             {
 194                         yylval.num = 0;
 195                         return(OFF);
 196                 }
 197
 198         /* basic rules */
 199 {ws}            ;
 200 {nl}            {
 201                         lineno++;
 202                 }
 203 {semi}          {
 204                         return EOS;
 205                 }
 206 {bcl}           {
 207                         return BCL;
 208                 }
 209 {ecl}           {
 210                         return ECL;
 211                 }
 212 {qstring}       {
 213                         yylval.cs.cp = yytext;
 214                         yylval.cs.len = yyleng;
 215                         return QSTRING;
 216                 }
 217 {decstring}     {
 218                         yylval.cs.cp = yytext;
 219                         yylval.cs.len = yyleng;
 220                         return DECSTRING;
 221                 }
 222 {name}          {
 223                         yylval.cs.cp = yytext;
 224                         yylval.cs.len = yyleng;
 225                         return NAME;
 226                 }
 227 {ipv4addr}      {
 228                         memset(&yylval.addr4, 0, sizeof(struct in_addr));
 229                         if (inet_pton(AF_INET, yytext,
 230                                       &yylval.addr4) == 1) {
 231                                 return IPV4ADDR;
 232                         } else {
 233                                 return ERROR;
 234                         }
 235                 }
 236 {ipv6addr}      {
 237                         memset(&yylval.addr6, 0, sizeof(struct in6_addr));
 238                         if (inet_pton(AF_INET6, yytext,
 239                                       &yylval.addr6) == 1) {
 240                                 return IPV6ADDR;
 241                         } else {
 242                                 return ERROR;
 243                         }
 244                 }
 245 {ipaddrmask}    {
 246                         yytext++;
 247                         yylval.num = atoi(yytext);
 248                         return(PREFIXLEN);
 249                 }
 250 {hostname}      {
 251                         yylval.cs.cp = yytext;
 252                         yylval.cs.len = yyleng;
 253                         return HOSTNAME;
 254                 }
 255 %%
 256
 257 int parse(FILE **fp)
 258 {
 259         extern int yyparse(void);
 260
 261         yyin = *fp;
 262
 263         if (yyparse())
 264                 return(-1);
 265
 266         return(0);
 267
 268 }
 269
 270 void
 271 yyerror(const char *s)
 272 {
 273         printf("%s: at %s in line %d\n", s, yytext, lineno);
 274 }