nslexer.l revision 213785 
1%{
2/*	$NetBSD: nslexer.l,v 1.3 1999/01/25 00:16:17 lukem Exp $	*/
3
4/*-
5 * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Luke Mewburn.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *        This product includes software developed by the NetBSD
22 *        Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 *    contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#include <sys/cdefs.h>
41#if defined(LIBC_SCCS) && !defined(lint)
42static char *rcsid =
43  "$FreeBSD: head/lib/libc/net/nslexer.l 213785 2010-10-13 16:57:06Z rpaulo $";
44#endif /* LIBC_SCCS and not lint */
45
46#include "namespace.h"
47#include <ctype.h>
48#define _NS_PRIVATE
49#include <nsswitch.h>
50#include <string.h>
51#include <syslog.h>
52#include "un-namespace.h"
53
54#include "nsparser.h"
55
56#define	YY_NO_INPUT
57#define YY_NO_UNPUT
58
59%}
60
61%option yylineno
62
63BLANK		[ \t]
64CR		\n
65STRING		[a-zA-Z][a-zA-Z0-9_]*
66
67%%
68
69{BLANK}+	;			/* skip whitespace */
70
71#.*		;			/* skip comments */
72
73\\{CR}		;			/* allow continuation */
74
75{CR}		return NL;
76
77[sS][uU][cC][cC][eE][sS][sS]		return SUCCESS;
78[uU][nN][aA][vV][aA][iI][lL]		return UNAVAIL;
79[nN][oO][tT][fF][oO][uU][nN][dD]	return NOTFOUND;
80[tT][rR][yY][aA][gG][aA][iI][nN]	return TRYAGAIN;
81
82[rR][eE][tT][uU][rR][nN]		return RETURN;
83[cC][oO][nN][tT][iI][nN][uU][eE]	return CONTINUE;
84
85{STRING}	{
86			char *p;
87			int i;
88
89			if ((p = strdup(yytext)) == NULL) {
90				syslog(LOG_ERR,
91			       "NSSWITCH(nslexer): memory allocation failure");
92				return ERRORTOKEN;
93			}
94			for (i = 0; i < strlen(p); i++) {
95				if (isupper((unsigned char)p[i]))
96					p[i] = tolower((unsigned char)p[i]);
97			}
98			_nsyylval.str = p;
99			return STRING;
100		}
101
102.		return yytext[0];
103
104%%
105
106#undef _nsyywrap
107int
108_nsyywrap()
109{
110	return 1;
111} /* _nsyywrap */
112
113void
114_nsyyerror(msg)
115	const char *msg;
116{
117
118	 syslog(LOG_ERR, "NSSWITCH(nslexer): %s line %d: %s at '%s'",
119	     _PATH_NS_CONF, yylineno, msg, yytext);
120} /* _nsyyerror */
121