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
  37 #pragma GCC diagnostic ignored "-Wsign-compare"
  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 %}
  66
  67 %option noinput
  68 %option nounput
  69
  70 /* common section */
  71 nl              \n
  72 ws              [ \t]+
  73 digit           [0-9]
  74 letter          [0-9A-Za-z]
  75 hexdigit        [0-9A-Fa-f]
  76 special         [()+\|\?\*,]
  77 dot             \.
  78 hyphen          \-
  79 colon           \:
  80 slash           \/
  81 bcl             \{
  82 ecl             \}
  83 semi            \;
  84 usec            {dot}{digit}{1,6}
  85 comment         \#.*
  86 qstring         \"[^"]*\"
  87 decstring       {digit}+
  88 hexpair         {hexdigit}{hexdigit}
  89 hexstring       0[xX]{hexdigit}+
  90 octetstring     {octet}({dot}{octet})+
  91 ipv4addr        {digit}{1,3}({dot}{digit}{1,3}){0,3}
  92 ipv6addr        {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
  93 ipaddrmask      {slash}{digit}{1,3}
  94 keyword         {letter}{letter}+
  95 name            {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
  96 hostname        {name}(({dot}{name})+{dot}?)?
  97
  98 timeval         {digit}{0,2}
  99 days            d{timeval}
 100 hours           h{timeval}
 101 minutes         m{timeval}
 102 seconds         s{timeval}
 103
 104 mprefix         match_prefix|match-prefix
 105 uprefix         use_prefix|use-prefix
 106
 107 %%
 108         /* rrenumd keywords */
 109 debug           {
 110                         return(DEBUG_CMD);
 111                 }
 112 dest            {
 113                         return(DEST_CMD);
 114                 }
 115 retry           {
 116                         return(RETRY_CMD);
 117                 }
 118 seqnum          {
 119                         return(SEQNUM_CMD);
 120                 }
 121 add             {
 122                         yylval.num = RPM_PCO_ADD;
 123                         return(ADD);
 124                 }
 125 change          {
 126                         yylval.num = RPM_PCO_CHANGE;
 127                         return(CHANGE);
 128                  }
 129 setglobal       {
 130                         yylval.num = RPM_PCO_SETGLOBAL;
 131                         return(SETGLOBAL);
 132                 }
 133 {mprefix}       {
 134                         return(MATCH_PREFIX_CMD);
 135                 }
 136 maxlen          {
 137                         return(MAXLEN_CMD);
 138                 }
 139 minlen          {
 140                         return(MINLEN_CMD);
 141                 }
 142 {uprefix}       {
 143                         return(USE_PREFIX_CMD);
 144                 }
 145 keeplen         {
 146                         return(KEEPLEN_CMD);
 147                 }
 148
 149 vltime          {
 150                         return(VLTIME_CMD);
 151                 }
 152 pltime          {
 153                         return(PLTIME_CMD);
 154                 }
 155 raf_onlink      {
 156                         return(RAF_ONLINK_CMD);
 157                 }
 158 raf_auto        {
 159                         return(RAF_AUTO_CMD);
 160                 }
 161 rrf_decrvalid   {
 162                         return(RAF_DECRVALID_CMD);
 163                 }
 164 rrf_decrprefd   {
 165                         return(RAF_DECRPREFD_CMD);
 166                 }
 167 {days}          {
 168                         yytext++;
 169                         yylval.num = atoi(yytext);
 170                         return(DAYS);
 171                 }
 172 {hours}         {
 173                         yytext++;
 174                         yylval.num = atoi(yytext);
 175                         return(HOURS);
 176                 }
 177 {minutes}       {
 178                         yytext++;
 179                         yylval.num = atoi(yytext);
 180                         return(MINUTES);
 181                 }
 182 {seconds}       {
 183                         yytext++;
 184                         yylval.num = atoi(yytext);
 185                         return(SECONDS);
 186                 }
 187 infinity        {
 188                         return(INFINITY);
 189                 }
 190
 191 on              {
 192                         yylval.num = 1;
 193                         return(ON);
 194                 }
 195 off             {
 196                         yylval.num = 0;
 197                         return(OFF);
 198                 }
 199
 200         /* basic rules */
 201 {ws}            ;
 202 {nl}            {
 203                         lineno++;
 204                 }
 205 {semi}          {
 206                         return EOS;
 207                 }
 208 {bcl}           {
 209                         return BCL;
 210                 }
 211 {ecl}           {
 212                         return ECL;
 213                 }
 214 {qstring}       {
 215                         yylval.cs.cp = yytext;
 216                         yylval.cs.len = yyleng;
 217                         return QSTRING;
 218                 }
 219 {decstring}     {
 220                         yylval.cs.cp = yytext;
 221                         yylval.cs.len = yyleng;
 222                         return DECSTRING;
 223                 }
 224 {name}          {
 225                         yylval.cs.cp = yytext;
 226                         yylval.cs.len = yyleng;
 227                         return NAME;
 228                 }
 229 {ipv4addr}      {
 230                         memset(&yylval.addr4, 0, sizeof(struct in_addr));
 231                         if (inet_pton(AF_INET, yytext,
 232                                       &yylval.addr4) == 1) {
 233                                 return IPV4ADDR;
 234                         } else {
 235                                 return ERROR;
 236                         }
 237                 }
 238 {ipv6addr}      {
 239                         memset(&yylval.addr6, 0, sizeof(struct in6_addr));
 240                         if (inet_pton(AF_INET6, yytext,
 241                                       &yylval.addr6) == 1) {
 242                                 return IPV6ADDR;
 243                         } else {
 244                                 return ERROR;
 245                         }
 246                 }
 247 {ipaddrmask}    {
 248                         yytext++;
 249                         yylval.num = atoi(yytext);
 250                         return(PREFIXLEN);
 251                 }
 252 {hostname}      {
 253                         yylval.cs.cp = yytext;
 254                         yylval.cs.len = yyleng;
 255                         return HOSTNAME;
 256                 }
 257 %%
 258
 259 int parse(FILE **fp)
 260 {
 261         extern int yyparse(void);
 262
 263         yyin = *fp;
 264
 265         if (yyparse())
 266                 return(-1);
 267
 268         return(0);
 269
 270 }
 271
 272 void
 273 yyerror(const char *s)
 274 {
 275         printf("%s: at %s in line %d\n", s, yytext, lineno);
 276 }