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veriexecctl_conf.l revision 1.13 
      1 %{
      2 /*	$NetBSD: veriexecctl_conf.l,v 1.13 2009/10/28 17:25:44 christos Exp $	*/
      3 
      4 /*-
      5  * Copyright 2005 Elad Efrat <elad (at) NetBSD.org>
      6  * Copyright 2005 Brett Lymn <blymn (at) netbsd.org>
      7  *
      8  * All rights reserved.
      9  *
     10  * This code has been donated to The NetBSD Foundation by the Author.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. The name of the author may not be used to endorse or promote products
     18  *    derived from this software withough specific prior written permission
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  *
     31  *
     32  */
     33 
     34 #include <stdio.h>
     35 #include <stdlib.h>
     36 #include <string.h>
     37 #include <err.h>
     38 
     39 #include <prop/proplib.h>
     40 
     41 #include "veriexecctl_parse.h"
     42 
     43 #define YY_NO_UNPUT
     44 int yylex(void);
     45 
     46 extern size_t line;
     47 extern int verbose;
     48 
     49 static char *
     50 dequote(const char *s)
     51 {
     52 	size_t len;
     53 	const char *p;
     54 	char *buf, *q;
     55 
     56 	len = 0;
     57 	p = s;
     58 	while (*p) {
     59 		if (*p == '\\' && *(p+1))
     60 			++p;
     61 		++len;
     62 		++p;
     63 	}
     64 
     65 	buf = malloc(len + 1);
     66 	if (buf == NULL)
     67 		return NULL;
     68 
     69 	p = s;
     70 	q = buf;
     71 	while (*p) {
     72 		if (*p == '\\' && *(p+1))
     73 			++p;
     74 		*q++ = *p++;
     75 	}
     76 	*q++ = '\0';
     77 
     78 	return buf;
     79 }
     80 %}
     81 
     82 STRING		[0-9a-zA-Z]+
     83 PCHAR           (\\.|[^ \t])
     84 
     85 %%
     86 
     87 	/* path */
     88 \/{PCHAR}+	{
     89 			if ((yylval.string = dequote(yytext)) == NULL)
     90 				err(1, "Cannot allocate string");
     91 			return PATH;
     92 		}
     93 
     94 	/* string (fingerprint, type, options) */
     95 {STRING} 	{
     96 			if ((yylval.string = strdup(yytext)) == NULL)
     97 				err(1, "Cannot allocate string");
     98 			return STRING;
     99 		}
    100 
    101 	/* comments, white-outs */
    102 [ \t\r]		|
    103 #.*		;
    104 ^#.*\n		|
    105 #.*\n		|
    106 \\\n		|
    107 ^\n		{ line++; }
    108 
    109 	/* eol on a line with data. need a call to ioctl, return eol */
    110 \n		{
    111 			line++;
    112 			return EOL;
    113 		}
    114 
    115 ","		{
    116 			return TOKEN_COMMA;
    117 		}
    118 
    119 .		{
    120 			if (verbose)
    121 				warnx("Invalid character '%c' in line %zu",
    122 				    *yytext, line);
    123 		}
    124 
    125 %%
    126 
    127 int
    128 yywrap(void)
    129 {
    130 	return 1;
    131 }
    132