freebsd-skq/usr.sbin/apmd/apmdparse.y

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%{
/*-
* APM (Advanced Power Management) Event Dispatcher
*
* Copyright (c) 1999 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
* Copyright (c) 1999 KOIE Hidetaka <koie@suri.co.jp>
* 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.
*
* $Id: apmdparse.y,v 1.1.3.5 1999/06/08 09:01:47 koie Exp $
*/
#include <stdio.h>
#include <bitstring.h>
#include "apmd.h"
#ifdef DEBUG
#define YYDEBUG 1
#endif
extern int first_time;
%}
%union {
char *str;
bitstr_t bit_decl(evlist, EVENT_MAX);
int ev;
struct event_cmd * evcmd;
}
%token BEGINBLOCK ENDBLOCK
%token COMMA SEMICOLON
%token APMEVENT
%token EXECCMD REJECTCMD
%token <ev> EVENT
%token <str> STRING UNKNOWN
%type <str> string
%type <str> unknown
%type <evlist> event_list
%type <evcmd> cmd_list
%type <evcmd> cmd
%type <evcmd> exec_cmd reject_cmd
%%
config_file
: { first_time = 1; } config_list
;
config_list
: config
| config_list config
;
config
: apm_event_statement
;
apm_event_statement
: APMEVENT event_list BEGINBLOCK cmd_list ENDBLOCK
{
if (register_apm_event_handlers($2, $4) < 0)
abort(); /* XXX */
free_event_cmd_list($4);
}
;
event_list
: EVENT
{
bit_nclear($$, 0, EVENT_MAX - 1);
bit_set($$, $1);
}
| event_list COMMA EVENT
{
memcpy(&($$), &($1), bitstr_size(EVENT_MAX));
bit_set($$, $3);
}
;
cmd_list
: /* empty */
{
$$ = NULL;
}
| cmd_list cmd
{
struct event_cmd * p = $1;
if (p) {
while (p->next != NULL)
p = p->next;
p->next = $2;
$$ = $1;
} else {
$$ = $2;
}
}
;
cmd
: exec_cmd SEMICOLON { $$ = $1; }
| reject_cmd SEMICOLON { $$ = $1; }
;
exec_cmd
: EXECCMD string
{
size_t len = sizeof (struct event_cmd_exec);
struct event_cmd_exec *cmd = malloc(len);
cmd->evcmd.next = NULL;
cmd->evcmd.len = len;
cmd->evcmd.name = "exec";
cmd->evcmd.op = &event_cmd_exec_ops;
cmd->line = $2;
$$ = (struct event_cmd *) cmd;
}
;
reject_cmd
: REJECTCMD
{
size_t len = sizeof (struct event_cmd_reject);
struct event_cmd_reject *cmd = malloc(len);
cmd->evcmd.next = NULL;
cmd->evcmd.len = len;
cmd->evcmd.name = "reject";
cmd->evcmd.op = &event_cmd_reject_ops;
$$ = (struct event_cmd *) cmd;
}
;
string
: STRING { $$ = $1; }
;
unknown
: UNKNOWN
{
$$ = $1;
}
;
%%