lexer.l revision 331722 
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/11/usr.sbin/rrenumd/lexer.l 331722 2018-03-29 02:50:57Z eadler $
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
51int lineno = 1;
52
53#define LINEBUF_SIZE 1000
54char linebuf[LINEBUF_SIZE];
55
56int parse(FILE **);
57void yyerror(const char *);
58int yylex(void);
59%}
60
61%option nounput
62
63/* common section */
64nl		\n
65ws		[ \t]+
66digit		[0-9]
67letter		[0-9A-Za-z]
68hexdigit	[0-9A-Fa-f]
69special		[()+\|\?\*,]
70dot		\.
71hyphen		\-
72colon		\:
73slash		\/
74bcl		\{
75ecl		\}
76semi		\;
77usec		{dot}{digit}{1,6}
78comment		\#.*
79qstring		\"[^"]*\"
80decstring	{digit}+
81hexpair		{hexdigit}{hexdigit}
82hexstring	0[xX]{hexdigit}+
83octetstring	{octet}({dot}{octet})+
84ipv4addr	{digit}{1,3}({dot}{digit}{1,3}){0,3}
85ipv6addr	{hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
86ipaddrmask	{slash}{digit}{1,3}
87keyword		{letter}{letter}+
88name		{letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
89hostname	{name}(({dot}{name})+{dot}?)?
90
91timeval		{digit}{0,2}
92days		d{timeval}
93hours		h{timeval}
94minutes		m{timeval}
95seconds		s{timeval}
96
97mprefix		match_prefix|match-prefix
98uprefix		use_prefix|use-prefix
99
100%%
101	/* rrenumd keywords */
102debug		{
103			return(DEBUG_CMD);
104		}
105dest		{
106			return(DEST_CMD);
107		}
108retry		{
109			return(RETRY_CMD);
110		}
111seqnum		{
112			return(SEQNUM_CMD);
113		}
114add		{
115			yylval.num = RPM_PCO_ADD;
116			return(ADD);
117		}
118change		{
119			yylval.num = RPM_PCO_CHANGE;
120			return(CHANGE);
121		 }
122setglobal	{
123			yylval.num = RPM_PCO_SETGLOBAL;
124			return(SETGLOBAL);
125		}
126{mprefix}	{
127			return(MATCH_PREFIX_CMD);
128		}
129maxlen		{
130			return(MAXLEN_CMD);
131		}
132minlen		{
133			return(MINLEN_CMD);
134		}
135{uprefix}	{
136			return(USE_PREFIX_CMD);
137		}
138keeplen		{
139			return(KEEPLEN_CMD);
140		}
141
142vltime		{
143			return(VLTIME_CMD);
144		}
145pltime		{
146			return(PLTIME_CMD);
147		}
148raf_onlink	{
149			return(RAF_ONLINK_CMD);
150		}
151raf_auto	{
152			return(RAF_AUTO_CMD);
153		}
154rrf_decrvalid	{
155			return(RAF_DECRVALID_CMD);
156		}
157rrf_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		}
180infinity	{
181			return(INFINITY);
182		}
183
184on		{
185			yylval.num = 1;
186			return(ON);
187		}
188off		{
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
252int 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
265void
266yyerror(const char *s)
267{
268	printf("%s: at %s in line %d\n", s, yytext, lineno);
269}
270