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nslexer.l revision 1.9 
      1  1.2     lukem %{
      2  1.9  christos /*	$NetBSD: nslexer.l,v 1.9 2009/10/29 14:49:03 christos Exp $	*/
      3  1.2     lukem 
      4  1.2     lukem /*-
      5  1.2     lukem  * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
      6  1.2     lukem  * All rights reserved.
      7  1.2     lukem  *
      8  1.2     lukem  * This code is derived from software contributed to The NetBSD Foundation
      9  1.2     lukem  * by Luke Mewburn.
     10  1.2     lukem  *
     11  1.2     lukem  * Redistribution and use in source and binary forms, with or without
     12  1.2     lukem  * modification, are permitted provided that the following conditions
     13  1.2     lukem  * are met:
     14  1.2     lukem  * 1. Redistributions of source code must retain the above copyright
     15  1.2     lukem  *    notice, this list of conditions and the following disclaimer.
     16  1.2     lukem  * 2. Redistributions in binary form must reproduce the above copyright
     17  1.2     lukem  *    notice, this list of conditions and the following disclaimer in the
     18  1.2     lukem  *    documentation and/or other materials provided with the distribution.
     19  1.2     lukem  *
     20  1.2     lukem  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  1.2     lukem  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  1.2     lukem  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  1.2     lukem  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  1.2     lukem  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  1.2     lukem  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  1.2     lukem  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  1.2     lukem  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  1.2     lukem  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  1.2     lukem  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  1.2     lukem  * POSSIBILITY OF SUCH DAMAGE.
     31  1.2     lukem  */
     32  1.3     lukem 
     33  1.3     lukem #include <sys/cdefs.h>
     34  1.3     lukem #if defined(LIBC_SCCS) && !defined(lint)
     35  1.9  christos __RCSID("$NetBSD: nslexer.l,v 1.9 2009/10/29 14:49:03 christos Exp $");
     36  1.3     lukem #endif /* LIBC_SCCS and not lint */
     37  1.2     lukem 
     38  1.4    kleink #include "namespace.h"
     39  1.2     lukem #include <ctype.h>
     40  1.2     lukem #define _NS_PRIVATE
     41  1.2     lukem #include <nsswitch.h>
     42  1.2     lukem #include <string.h>
     43  1.7     lukem #include <syslog.h>
     44  1.2     lukem 
     45  1.2     lukem #include "nsparser.h"
     46  1.2     lukem 
     47  1.2     lukem %}
     48  1.2     lukem 
     49  1.9  christos %option yylineno nounput
     50  1.7     lukem %option never-interactive
     51  1.2     lukem 
     52  1.2     lukem BLANK		[ \t]
     53  1.2     lukem CR		\n
     54  1.2     lukem STRING		[a-zA-Z][a-zA-Z0-9_]*
     55  1.2     lukem 
     56  1.2     lukem %%
     57  1.2     lukem 
     58  1.2     lukem {BLANK}+	;			/* skip whitespace */
     59  1.2     lukem 
     60  1.2     lukem #.*		;			/* skip comments */
     61  1.2     lukem 
     62  1.2     lukem \\{CR}		;			/* allow continuation */
     63  1.2     lukem 
     64  1.2     lukem {CR}		return NL;
     65  1.2     lukem 
     66  1.2     lukem [sS][uU][cC][cC][eE][sS][sS]		return SUCCESS;
     67  1.2     lukem [uU][nN][aA][vV][aA][iI][lL]		return UNAVAIL;
     68  1.2     lukem [nN][oO][tT][fF][oO][uU][nN][dD]	return NOTFOUND;
     69  1.2     lukem [tT][rR][yY][aA][gG][aA][iI][nN]	return TRYAGAIN;
     70  1.2     lukem 
     71  1.2     lukem [rR][eE][tT][uU][rR][nN]		return RETURN;
     72  1.2     lukem [cC][oO][nN][tT][iI][nN][uU][eE]	return CONTINUE;
     73  1.2     lukem 
     74  1.2     lukem {STRING}	{
     75  1.2     lukem 			char *p;
     76  1.6   thorpej 			size_t i;
     77  1.2     lukem 
     78  1.7     lukem 			if ((p = strdup(yytext)) == NULL) {
     79  1.7     lukem 				syslog(LOG_ERR, "libc nsdispatch: %m");
     80  1.7     lukem 				return NL;
     81  1.7     lukem 			}
     82  1.2     lukem 
     83  1.2     lukem 			for (i = 0; i < strlen(p); i++) {
     84  1.2     lukem 				if (isupper((unsigned char)p[i]))
     85  1.2     lukem 					p[i] = tolower((unsigned char)p[i]);
     86  1.2     lukem 			}
     87  1.2     lukem 			_nsyylval.str = p;
     88  1.2     lukem 			return STRING;
     89  1.2     lukem 		}
     90  1.2     lukem 
     91  1.5     lukem .		return yytext[0];
     92  1.2     lukem 
     93  1.2     lukem %%
     94  1.2     lukem 
     95  1.2     lukem #undef _nsyywrap
     96  1.2     lukem int
     97  1.2     lukem _nsyywrap()
     98  1.2     lukem {
     99  1.2     lukem 	return 1;
    100  1.2     lukem } /* _nsyywrap */
    101  1.2     lukem 
    102  1.2     lukem void
    103  1.2     lukem _nsyyerror(msg)
    104  1.2     lukem 	const char *msg;
    105  1.2     lukem {
    106  1.2     lukem 
    107  1.7     lukem 	 syslog(LOG_WARNING, "libc nsdispatch: %s line %d: %s at '%s'",
    108  1.7     lukem 	    _PATH_NS_CONF, yylineno, msg, yytext);
    109  1.2     lukem } /* _nsyyerror */
    110