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 * $FreeBSD$ 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 #define YY_NO_UNPUT 41 42 static void 43 update_lineno(const char *cp) 44 { 45 while (*cp) 46 if (*cp++ == '\n') 47 lineno++; 48 } 49 50 %} 51 52 %% 53 54 [ \t]+ ; 55 \n lineno++; 56 ; { return SEMICOLON; } 57 #.*$ ; 58 \/\/.*$ ; 59 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); } 60 \{ { return BEGINBLOCK; } 61 \} { return ENDBLOCK; } 62 [0-9]+ { yylval.i = atoi(yytext); return NUMBER; } 63 \"[^"]+\" { 64 int len = strlen(yytext) - 2; 65 char *walker; 66 int i; 67 update_lineno(yytext); 68 if ((yylval.str = (char *) malloc(len + 1)) == NULL) 69 goto out; 70 walker = yylval.str; 71 for (i = 1; i <= len; i++) { 72 if (yytext[i] == '\\' && 73 yytext[i + 1] == '\n') { 74 i += 2; 75 while(isspace(yytext[i])) 76 i++; 77 } 78 *walker++ = yytext[i]; 79 } 80 *walker++ = '\0'; 81 out:; 82 return STRING; 83 } 84 85 86 options { return OPTIONS; } 87 set { return SET; } 88 directory { return DIRECTORY; } 89 pid-file { return PID_FILE; } 90 attach { return ATTACH; } 91 detach { return DETACH; } 92 device-name { return DEVICE_NAME; } 93 media-type { return MEDIA_TYPE; } 94 class { return CLASS; } 95 subdevice { return SUBDEVICE; } 96 action { return ACTION; } 97 match { return MATCH; } 98 nomatch { return NOMATCH; } 99 notify { return NOTIFY; } 100 [A-Za-z][A-Za-z0-9_-]* { 101 yylval.str = strdup(yytext); 102 return ID; 103 } 104 %% 105 106 void 107 yyerror(const char *s) 108 { 109 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s); 110 } 111