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      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 "namespace.h"
     39 #include <ctype.h>
     40 #define _NS_PRIVATE
     41 #include <nsswitch.h>
     42 #include <string.h>
     43 #include <syslog.h>
     44 
     45 #include "nsparser.h"
     46 
     47 %}
     48 
     49 %option yylineno nounput noinput
     50 %option never-interactive
     51 
     52 BLANK		[ \t]
     53 CR		\n
     54 STRING		[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
     96 int
     97 _nsyywrap(void)
     98 {
     99 	return 1;
    100 } /* _nsyywrap */
    101 
    102 void
    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