1%{
2/*	$NetBSD: nslexer.l,v 1.13 2012/06/25 22:32:45 abs 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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34#if defined(LIBC_SCCS) && !defined(lint)
35__RCSID("$NetBSD: nslexer.l,v 1.13 2012/06/25 22:32:45 abs Exp $");
36#endif /* LIBC_SCCS and not lint */
37
38#include <ctype.h>
39#define _NS_PRIVATE
40#include <nsswitch.h>
41#include <string.h>
42#include <syslog.h>
43
44#include "nsparser.h"
45
46%}
47
48%option prefix="_nsyy"
49%option yylineno nounput noinput
50%option never-interactive
51
52BLANK		[ \t]
53CR		\n
54STRING		[a-zA-Z][a-zA-Z0-9_]*
55
56%%
57
58{BLANK}+	;			/* skip whitespace */
59
60#.*		;			/* skip comments */
61
62\\{CR}		;			/* allow continuation */
63
64{CR}		return NL;
65
66[sS][uU][cC][cC][eE][sS][sS]		return SUCCESS;
67[uU][nN][aA][vV][aA][iI][lL]		return UNAVAIL;
68[nN][oO][tT][fF][oO][uU][nN][dD]	return NOTFOUND;
69[tT][rR][yY][aA][gG][aA][iI][nN]	return TRYAGAIN;
70
71[rR][eE][tT][uU][rR][nN]		return RETURN;
72[cC][oO][nN][tT][iI][nN][uU][eE]	return CONTINUE;
73
74{STRING}	{
75			char *p;
76			size_t i;
77
78			if ((p = strdup(yytext)) == NULL) {
79				syslog(LOG_ERR, "libc nsdispatch: %m");
80				return NL;
81			}
82
83			for (i = 0; i < strlen(p); i++) {
84				if (isupper((unsigned char)p[i]))
85					p[i] = tolower((unsigned char)p[i]);
86			}
87			_nsyylval.str = p;
88			return STRING;
89		}
90
91.		return yytext[0];
92
93%%
94
95#undef _nsyywrap
96int
97_nsyywrap(void)
98{
99	return 1;
100} /* _nsyywrap */
101
102void
103_nsyyerror(const char *msg)
104{
105
106	 syslog(LOG_WARNING, "libc nsdispatch: %s line %d: %s at '%s'",
107	    _PATH_NS_CONF, yylineno, msg, yytext);
108} /* _nsyyerror */
109