lexer.l revision 252181 
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: stable/9/usr.sbin/rrenumd/lexer.l 252181 2013-06-24 21:33:19Z marius $
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
44#include <net/if_var.h>
45#endif /* __FreeBSD__ >= 3 */
46
47#include <netinet/in.h>
48#include <netinet/in_var.h>
49#include <netinet/icmp6.h>
50
51#include <arpa/inet.h>
52
53#include "y.tab.h"
54
55int lineno = 1;
56
57#define LINEBUF_SIZE 1000
58char linebuf[LINEBUF_SIZE];
59
60int parse(FILE **);
61void yyerror(const char *);
62int yylex(void);
63%}
64
65%option nounput
66
67/* common section */
68nl		\n
69ws		[ \t]+
70digit		[0-9]
71letter		[0-9A-Za-z]
72hexdigit	[0-9A-Fa-f]
73special		[()+\|\?\*,]
74dot		\.
75hyphen		\-
76colon		\:
77slash		\/
78bcl		\{
79ecl		\}
80semi		\;
81usec		{dot}{digit}{1,6}
82comment		\#.*
83qstring		\"[^"]*\"
84decstring	{digit}+
85hexpair		{hexdigit}{hexdigit}
86hexstring	0[xX]{hexdigit}+
87octetstring	{octet}({dot}{octet})+
88ipv4addr	{digit}{1,3}({dot}{digit}{1,3}){0,3}
89ipv6addr	{hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
90ipaddrmask	{slash}{digit}{1,3}
91keyword		{letter}{letter}+
92name		{letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
93hostname	{name}(({dot}{name})+{dot}?)?
94
95timeval		{digit}{0,2}
96days		d{timeval}
97hours		h{timeval}
98minutes		m{timeval}
99seconds		s{timeval}
100
101mprefix		match_prefix|match-prefix
102uprefix		use_prefix|use-prefix
103
104%%
105	/* rrenumd keywords */
106debug		{
107			return(DEBUG_CMD);
108		}
109dest		{
110			return(DEST_CMD);
111		}
112retry		{
113			return(RETRY_CMD);
114		}
115seqnum		{
116			return(SEQNUM_CMD);
117		}
118add		{
119			yylval.num = RPM_PCO_ADD;
120			return(ADD);
121		}
122change		{
123			yylval.num = RPM_PCO_CHANGE;
124			return(CHANGE);
125		 }
126setglobal	{
127			yylval.num = RPM_PCO_SETGLOBAL;
128			return(SETGLOBAL);
129		}
130{mprefix}	{
131			return(MATCH_PREFIX_CMD);
132		}
133maxlen		{
134			return(MAXLEN_CMD);
135		}
136minlen		{
137			return(MINLEN_CMD);
138		}
139{uprefix}	{
140			return(USE_PREFIX_CMD);
141		}
142keeplen		{
143			return(KEEPLEN_CMD);
144		}
145
146vltime		{
147			return(VLTIME_CMD);
148		}
149pltime		{
150			return(PLTIME_CMD);
151		}
152raf_onlink	{
153			return(RAF_ONLINK_CMD);
154		}
155raf_auto	{
156			return(RAF_AUTO_CMD);
157		}
158rrf_decrvalid	{
159			return(RAF_DECRVALID_CMD);
160		}
161rrf_decrprefd	{
162			return(RAF_DECRPREFD_CMD);
163		}
164{days}		{
165			yytext++;
166			yylval.num = atoi(yytext);
167			return(DAYS);
168		}
169{hours}		{
170			yytext++;
171			yylval.num = atoi(yytext);
172			return(HOURS);
173		}
174{minutes}	{
175			yytext++;
176			yylval.num = atoi(yytext);
177			return(MINUTES);
178		}
179{seconds}	{
180			yytext++;
181			yylval.num = atoi(yytext);
182			return(SECONDS);
183		}
184infinity	{
185			return(INFINITY);
186		}
187
188on		{
189			yylval.num = 1;
190			return(ON);
191		}
192off		{
193			yylval.num = 0;
194			return(OFF);
195		}
196
197	/* basic rules */
198{ws}		;
199{nl}		{
200			lineno++;
201		}
202{semi}		{
203			return EOS;
204		}
205{bcl}		{
206			return BCL;
207		}
208{ecl}		{
209			return ECL;
210		}
211{qstring}	{
212			yylval.cs.cp = yytext;
213			yylval.cs.len = yyleng;
214			return QSTRING;
215		}
216{decstring}	{
217			yylval.cs.cp = yytext;
218			yylval.cs.len = yyleng;
219			return DECSTRING;
220		}
221{name}		{
222			yylval.cs.cp = yytext;
223			yylval.cs.len = yyleng;
224			return NAME;
225		}
226{ipv4addr}	{
227			memset(&yylval.addr4, 0, sizeof(struct in_addr));
228			if (inet_pton(AF_INET, yytext,
229				      &yylval.addr4) == 1) {
230				return IPV4ADDR;
231			} else {
232				return ERROR;
233			}
234		}
235{ipv6addr}	{
236			memset(&yylval.addr6, 0, sizeof(struct in6_addr));
237			if (inet_pton(AF_INET6, yytext,
238				      &yylval.addr6) == 1) {
239				return IPV6ADDR;
240			} else {
241				return ERROR;
242			}
243		}
244{ipaddrmask}	{
245			yytext++;
246			yylval.num = atoi(yytext);
247			return(PREFIXLEN);
248		}
249{hostname}	{
250			yylval.cs.cp = yytext;
251			yylval.cs.len = yyleng;
252			return HOSTNAME;
253		}
254%%
255
256int parse(FILE **fp)
257{
258	extern int yyparse(void);
259
260	yyin = *fp;
261
262	if (yyparse())
263		return(-1);
264
265	return(0);
266
267}
268
269void
270yyerror(const char *s)
271{
272	printf("%s: at %s in line %d\n", s, yytext, lineno);
273}
274