1 %{
2 /*-
3 * DEVD (Device action daemon)
4 *
5 * Copyright (c) 2002 M. Warner Losh <imp@freebsd.org>.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/sbin/devd/token.l 250227 2013-05-03 23:51:32Z jkim $
30 */
31
32 #include <ctype.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <syslog.h>
36 #include "devd.h"
37 #include "y.tab.h"
38
39 int lineno = 1;
40
41 static void
update_lineno(const char * cp)42 update_lineno(const char *cp)
43 {
44 while (*cp)
45 if (*cp++ == '\n')
46 lineno++;
47 }
48
49 %}
50
51 %option nounput
52 %option noinput
53
54 %%
55
56 [ \t]+ ;
57 \n lineno++;
58 ; { return SEMICOLON; }
59 #.*$ ;
60 \/\/.*$ ;
61 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); }
62 \{ { return BEGINBLOCK; }
63 \} { return ENDBLOCK; }
64 [0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
65 \"[^"]+\" {
66 int len = strlen(yytext) - 2;
67 char *walker;
68 int i;
69 update_lineno(yytext);
70 if ((yylval.str = (char *) malloc(len + 1)) == NULL)
71 goto out;
72 walker = yylval.str;
73 for (i = 1; i <= len; i++) {
74 if (yytext[i] == '\\' &&
75 yytext[i + 1] == '\n') {
76 i += 2;
77 while(isspace(yytext[i]))
78 i++;
79 }
80 *walker++ = yytext[i];
81 }
82 *walker++ = '\0';
83 out:;
84 return STRING;
85 }
86
87
88 options { return OPTIONS; }
89 set { return SET; }
90 directory { return DIRECTORY; }
91 pid-file { return PID_FILE; }
92 attach { return ATTACH; }
93 detach { return DETACH; }
94 device-name { return DEVICE_NAME; }
95 media-type { return MEDIA_TYPE; }
96 class { return CLASS; }
97 subdevice { return SUBDEVICE; }
98 action { return ACTION; }
99 match { return MATCH; }
100 nomatch { return NOMATCH; }
101 notify { return NOTIFY; }
102 [A-Za-z][A-Za-z0-9_-]* {
103 yylval.str = strdup(yytext);
104 return ID;
105 }
106 %%
107
108 void
109 yyerror(const char *s)
110 {
111 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s);
112 }
113