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_INPUT
  37 #define YY_NO_UNPUT
  38
  39 #include <sys/param.h>
  40 #include <sys/ioctl.h>
  41 #include <sys/socket.h>
  42 #include <sys/queue.h>
  43
  44 #include <string.h>
  45
  46 #include <net/if.h>
  47 #if defined(__DragonFly__)
  48 #include <net/if_var.h>
  49 #endif /* __DragonFly__  */
  50
  51 #include <netinet/in.h>
  52 #include <netinet/in_var.h>
  53 #include <netinet/icmp6.h>
  54
  55 #include <arpa/inet.h>
  56
  57 #include "y.tab.h"
  58
  59 int lineno = 1;
  60
  61 #define LINEBUF_SIZE 1000
  62 char linebuf[LINEBUF_SIZE];
  63
  64 int parse(FILE **);
  65 void yyerror(const char *);
  66 int yylex(void);
  67 %}
  68
  69 /* common section */
  70 nl              \n
  71 ws              [ \t]+
  72 digit           [0-9]
  73 letter          [0-9A-Za-z]
  74 hexdigit        [0-9A-Fa-f]
  75 special         [()+\|\?\*,]
  76 dot             \.
  77 hyphen          \-
  78 colon           \:
  79 slash           \/
  80 bcl             \{
  81 ecl             \}
  82 semi            \;
  83 usec            {dot}{digit}{1,6}
  84 comment         \#.*
  85 qstring         \"[^"]*\"
  86 decstring       {digit}+
  87 hexpair         {hexdigit}{hexdigit}
  88 hexstring       0[xX]{hexdigit}+
  89 octetstring     {octet}({dot}{octet})+
  90 ipv4addr        {digit}{1,3}({dot}{digit}{1,3}){0,3}
  91 ipv6addr        {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
  92 ipaddrmask      {slash}{digit}{1,3}
  93 keyword         {letter}{letter}+
  94 name            {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
  95 hostname        {name}(({dot}{name})+{dot}?)?
  96
  97 timeval         {digit}{0,2}
  98 days            d{timeval}
  99 hours           h{timeval}
 100 minutes         m{timeval}
 101 seconds         s{timeval}
 102
 103 mprefix         match_prefix|match-prefix
 104 uprefix         use_prefix|use-prefix
 105
 106 %%
 107         /* rrenumd keywords */
 108 debug           {
 109                         return(DEBUG_CMD);
 110                 }
 111 dest            {
 112                         return(DEST_CMD);
 113                 }
 114 retry           {
 115                         return(RETRY_CMD);
 116                 }
 117 seqnum          {
 118                         return(SEQNUM_CMD);
 119                 }
 120 add             {
 121                         yylval.num = RPM_PCO_ADD;
 122                         return(ADD);
 123                 }
 124 change          {
 125                         yylval.num = RPM_PCO_CHANGE;
 126                         return(CHANGE);
 127                  }
 128 setglobal       {
 129                         yylval.num = RPM_PCO_SETGLOBAL;
 130                         return(SETGLOBAL);
 131                 }
 132 {mprefix}       {
 133                         return(MATCH_PREFIX_CMD);
 134                 }
 135 maxlen          {
 136                         return(MAXLEN_CMD);
 137                 }
 138 minlen          {
 139                         return(MINLEN_CMD);
 140                 }
 141 {uprefix}       {
 142                         return(USE_PREFIX_CMD);
 143                 }
 144 keeplen         {
 145                         return(KEEPLEN_CMD);
 146                 }
 147
 148 vltime          {
 149                         return(VLTIME_CMD);
 150                 }
 151 pltime          {
 152                         return(PLTIME_CMD);
 153                 }
 154 raf_onlink      {
 155                         return(RAF_ONLINK_CMD);
 156                 }
 157 raf_auto        {
 158                         return(RAF_AUTO_CMD);
 159                 }
 160 rrf_decrvalid   {
 161                         return(RAF_DECRVALID_CMD);
 162                 }
 163 rrf_decrprefd   {
 164                         return(RAF_DECRPREFD_CMD);
 165                 }
 166 {days}          {
 167                         yytext++;
 168                         yylval.num = atoi(yytext);
 169                         return(DAYS);
 170                 }
 171 {hours}         {
 172                         yytext++;
 173                         yylval.num = atoi(yytext);
 174                         return(HOURS);
 175                 }
 176 {minutes}       {
 177                         yytext++;
 178                         yylval.num = atoi(yytext);
 179                         return(MINUTES);
 180                 }
 181 {seconds}       {
 182                         yytext++;
 183                         yylval.num = atoi(yytext);
 184                         return(SECONDS);
 185                 }
 186 infinity        {
 187                         return(INFINITY);
 188                 }
 189
 190 on              {
 191                         yylval.num = 1;
 192                         return(ON);
 193                 }
 194 off             {
 195                         yylval.num = 0;
 196                         return(OFF);
 197                 }
 198
 199         /* basic rules */
 200 {ws}            ;
 201 {nl}            {
 202                         lineno++;
 203                 }
 204 {semi}          {
 205                         return EOS;
 206                 }
 207 {bcl}           {
 208                         return BCL;
 209                 }
 210 {ecl}           {
 211                         return ECL;
 212                 }
 213 {qstring}       {
 214                         yylval.cs.cp = yytext;
 215                         yylval.cs.len = yyleng;
 216                         return QSTRING;
 217                 }
 218 {decstring}     {
 219                         yylval.cs.cp = yytext;
 220                         yylval.cs.len = yyleng;
 221                         return DECSTRING;
 222                 }
 223 {name}          {
 224                         yylval.cs.cp = yytext;
 225                         yylval.cs.len = yyleng;
 226                         return NAME;
 227                 }
 228 {ipv4addr}      {
 229                         memset(&yylval.addr4, 0, sizeof(struct in_addr));
 230                         if (inet_pton(AF_INET, yytext,
 231                                       &yylval.addr4) == 1) {
 232                                 return IPV4ADDR;
 233                         } else {
 234                                 return ERROR;
 235                         }
 236                 }
 237 {ipv6addr}      {
 238                         memset(&yylval.addr6, 0, sizeof(struct in6_addr));
 239                         if (inet_pton(AF_INET6, yytext,
 240                                       &yylval.addr6) == 1) {
 241                                 return IPV6ADDR;
 242                         } else {
 243                                 return ERROR;
 244                         }
 245                 }
 246 {ipaddrmask}    {
 247                         yytext++;
 248                         yylval.num = atoi(yytext);
 249                         return(PREFIXLEN);
 250                 }
 251 {hostname}      {
 252                         yylval.cs.cp = yytext;
 253                         yylval.cs.len = yyleng;
 254                         return HOSTNAME;
 255                 }
 256 %%
 257
 258 int parse(FILE **fp)
 259 {
 260         extern int yyparse(void);
 261
 262         yyin = *fp;
 263
 264         if (yyparse())
 265                 return(-1);
 266
 267         return(0);
 268
 269 }
 270
 271 void
 272 yyerror(const char *s)
 273 {
 274         printf("%s: at %s in line %d\n", s, yytext, lineno);
 275 }