lexer.l revision 55505 
1/*
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/usr.sbin/rrenumd/lexer.l 55505 2000-01-06 12:40:54Z shin $
30 */
31
32%{
33#include <sys/param.h>
34#include <sys/ioctl.h>
35#include <sys/socket.h>
36
37#include <string.h>
38
39#include <net/if.h>
40#include <net/if_var.h>
41
42#include <netinet/in.h>
43#include <netinet/in_var.h>
44#include <netinet/icmp6.h>
45#include "y.tab.h"
46
47int lineno = 1;
48
49#define	LINEBUF_SIZE 1000
50char linebuf[LINEBUF_SIZE];
51%}
52
53/* common section */
54nl		\n
55ws		[ \t]+
56digit		[0-9]
57letter		[0-9A-Za-z]
58hexdigit	[0-9A-Fa-f]
59special		[()+\|\?\*,]
60dot		\.
61hyphen		\-
62colon		\:
63slash		\/
64bcl		\{
65ecl		\}
66semi		\;
67usec		{dot}{digit}{1,6}
68comment		\#.*
69qstring		\"[^"]*\"
70decstring	{digit}+
71hexpair		{hexdigit}{hexdigit}
72hexstring	0[xX]{hexdigit}+
73octetstring	{octet}({dot}{octet})+
74ipv4addr	{digit}{1,3}({dot}{digit}{1,3}){0,3}
75ipv6addr	{hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
76ipaddrmask	{slash}{digit}{1,3}
77keyword		{letter}{letter}+
78name		{letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
79hostname	{name}(({dot}{name})+{dot}?)?
80
81timeval		{digit}{0,2}
82days		d{timeval}
83hours		h{timeval}
84minutes		m{timeval}
85seconds		s{timeval}
86
87mprefix		match_prefix|match-prefix
88uprefix		use_prefix|use-prefix
89
90%%
91	/* rrenumd keywords */
92debug		{
93			return(DEBUG_CMD);
94		}
95dest		{
96			return(DEST_CMD);
97		}
98retry		{
99			return(RETRY_CMD);
100		}
101seqnum		{
102			return(SEQNUM_CMD);
103		}
104add		{
105			yylval.num = RPM_PCO_ADD;
106			return(ADD);
107		}
108change		{
109			yylval.num = RPM_PCO_CHANGE;
110			return(CHANGE);
111		 }
112setglobal	{
113			yylval.num = RPM_PCO_SETGLOBAL;
114			return(SETGLOBAL);
115		}
116{mprefix}	{
117			return(MATCH_PREFIX_CMD);
118		}
119maxlen		{
120			return(MAXLEN_CMD);
121		}
122minlen		{
123			return(MINLEN_CMD);
124		}
125{uprefix}	{
126			return(USE_PREFIX_CMD);
127		}
128keeplen		{
129			return(KEEPLEN_CMD);
130		}
131
132vltime		{
133			return(VLTIME_CMD);
134		}
135pltime		{
136			return(PLTIME_CMD);
137		}
138raf_onlink	{
139			return(RAF_ONLINK_CMD);
140		}
141raf_auto	{
142			return(RAF_AUTO_CMD);
143		}
144rrf_decrvalid	{
145			return(RAF_DECRVALID_CMD);
146		}
147rrf_decrprefd	{
148			return(RAF_DECRPREFD_CMD);
149		}
150{days}		{
151			yytext++;
152			yylval.num = atoi(yytext);
153			return(DAYS);
154		}
155{hours}		{
156			yytext++;
157			yylval.num = atoi(yytext);
158			return(HOURS);
159		}
160{minutes}	{
161			yytext++;
162			yylval.num = atoi(yytext);
163			return(MINUTES);
164		}
165{seconds}	{
166			yytext++;
167			yylval.num = atoi(yytext);
168			return(SECONDS);
169		}
170infinity	{
171			return(INFINITY);
172		}
173
174on		{
175			yylval.num = 1;
176			return(ON);
177		}
178off		{
179			yylval.num = 0;
180			return(OFF);
181		}
182
183	/* basic rules */
184{ws}		;
185{nl}		{
186			lineno++;
187		}
188{semi}		{
189			return EOS;
190		}
191{bcl}		{
192			return BCL;
193		}
194{ecl}		{
195			return ECL;
196		}
197{qstring}	{
198			yylval.cs.cp = yytext;
199			yylval.cs.len = yyleng;
200			return QSTRING;
201		}
202{decstring}	{
203			yylval.cs.cp = yytext;
204			yylval.cs.len = yyleng;
205			return DECSTRING;
206		}
207{name}		{
208			yylval.cs.cp = yytext;
209			yylval.cs.len = yyleng;
210			return NAME;
211		}
212{ipv6addr}	{
213			memset(&yylval.addr6, 0, sizeof(struct in6_addr));
214			if (inet_pton(AF_INET6, yytext,
215				      &yylval.addr6) == 1) {
216				return IPV6ADDR;
217			} else {
218				return ERROR;
219			}
220		}
221{ipaddrmask}	{
222			yytext++;
223			yylval.num = atoi(yytext);
224			return(PREFIXLEN);
225		}
226{hostname}	{
227			yylval.cs.cp = yytext;
228			yylval.cs.len = yyleng;
229			return HOSTNAME;
230		}
231%%
232
233int parse(FILE **fp)
234{
235	yyin = *fp;
236
237	if(yyparse())
238		return(-1);
239
240	return(0);
241
242}
243
244void
245yyerror(const char *s)
246{
247	printf("%s: at %s in line %d\n", s, yytext, lineno);
248}
249