freebsd-dev/sbin/devd/token.l
Warner Losh e530e0446b devd. A daemon that hooks into the kernel's /dev/devctl to produce
arbitrary commands when devices come and go in the device tree (which is
different than the /dev directory).

This is an initial version.  Much of the planned power isn't here.
Instead of doing the full matching, we always run /etc/devd-generic.
/etc/devd.generic will go away at some point, I think.

I'm committing it in this early state so I can start getting feedback
from early adapters.

Approved by: re
2002-10-20 22:15:17 +00:00

90 lines
2.6 KiB
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%{
/*-
* DEVD (Device action daemon)
*
* Copyright (c) 2002 M. Warner Losh <imp@freebsd.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include "devd.h"
#include "y.tab.h"
int lineno = 1;
#define YY_NO_UNPUT
%}
%%
[ \t]+ ;
\n lineno++;
; { return SEMICOLON; }
\/\/.*$ ;
\/\*(.|\n)*\*\/ ;
\{ { return BEGINBLOCK; }
\} { return ENDBLOCK; }
[0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
\"[^"]+\" {
int len = strlen(yytext) - 2;
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
goto out;
memcpy(yylval.str, yytext + 1, len);
yylval.str[len] = '\0';
out:;
return STRING;
}
options { return OPTIONS; }
set { return SET; }
directory { return DIRECTORY; }
pid-file { return PID_FILE; }
attach { return ATTACH; }
detach { return DETACH; }
device-name { return DEVICE_NAME; }
action { return ACTION; }
match { return MATCH; }
nomatch { return NOMATCH; }
[A-Za-z][A-Za-z0-9-]* {
int len = strlen(yytext);
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
goto out2;
memcpy(yylval.str, yytext + 1, len);
yylval.str[len] = '\0';
out2:;
return ID;
}
%%
void
yyerror(const char *s)
{
syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s);
}