1 %{
2 /*-
3 * DEVD (Device action daemon)
4 *
5 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
6 *
7 * Copyright (c) 2002 M. Warner Losh <[email protected]>.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34 #include <ctype.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <syslog.h>
38 #include "devd.h"
39 #include "y.tab.h"
40
41 int lineno = 1;
42
43 static void
update_lineno(const char * cp)44 update_lineno(const char *cp)
45 {
46 while (*cp)
47 if (*cp++ == '\n')
48 lineno++;
49 }
50
51 %}
52
53 %option noyywrap
54 %option nounput
55 %option noinput
56
57 %%
58
59 [ \t]+ ;
60 \n lineno++;
61 ; { return SEMICOLON; }
62 #.*$ ;
63 \/\/.*$ ;
64 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); }
65 \{ { return BEGINBLOCK; }
66 \} { return ENDBLOCK; }
67 [0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
68 \"[^"]+\" {
69 int len = strlen(yytext) - 2;
70 char *walker;
71 int i;
72 update_lineno(yytext);
73 if ((yylval.str = (char *) malloc(len + 1)) == NULL)
74 goto out;
75 walker = yylval.str;
76 for (i = 1; i <= len; i++) {
77 if (yytext[i] == '\\' &&
78 yytext[i + 1] == '\n') {
79 i += 2;
80 while(isspace(yytext[i]))
81 i++;
82 }
83 *walker++ = yytext[i];
84 }
85 *walker++ = '\0';
86 out:;
87 return STRING;
88 }
89
90
91 options { return OPTIONS; }
92 set { return SET; }
93 directory { return DIRECTORY; }
94 pid-file { return PID_FILE; }
95 attach { return ATTACH; }
96 detach { return DETACH; }
97 device-name { return DEVICE_NAME; }
98 media-type { return MEDIA_TYPE; }
99 class { return CLASS; }
100 subdevice { return SUBDEVICE; }
101 action { return ACTION; }
102 match { return MATCH; }
103 nomatch { return NOMATCH; }
104 notify { return NOTIFY; }
105 [A-Za-z][A-Za-z0-9_-]* {
106 yylval.str = strdup(yytext);
107 return ID;
108 }
109 %%
110
111 void
112 yyerror(const char *s)
113 {
114 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s);
115 }
116