/* statement.h
Definitions for executable statements... */
/*
* Copyright (c) 1996-1999 Internet Software Consortium.
* 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.
* 3. Neither the name of The Internet Software Consortium nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
*
* This software has been written for the Internet Software Consortium
* by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
* To learn more about the Internet Software Consortium, see
* ``http://www.isc.org/''. To learn more about Vixie Enterprises,
* see ``http://www.vix.com''. To learn more about Nominum, Inc., see
* ``http://www.nominum.com''.
*/
struct executable_statement {
int refcnt;
struct executable_statement *next;
enum statement_op {
null_statement,
if_statement,
add_statement,
eval_statement,
break_statement,
default_option_statement,
supersede_option_statement,
append_option_statement,
prepend_option_statement,
send_option_statement,
statements_statement,
on_statement,
switch_statement,
case_statement,
default_statement,
set_statement,
unset_statement,
let_statement,
define_statement,
log_statement,
return_statement
} op;
union {
struct {
struct executable_statement *tc, *fc;
struct expression *expr;
} ie;
struct expression *eval;
struct expression *retval;
struct class *add;
struct option_cache *option;
struct option_cache *supersede;
struct option_cache *prepend;
struct option_cache *append;
struct executable_statement *statements;
struct {
int evtypes;
# define ON_COMMIT 1
# define ON_EXPIRY 2
# define ON_RELEASE 4
# define ON_TRANSMISSION 8
struct executable_statement *statements;
} on;
struct {
struct expression *expr;
struct executable_statement *statements;
} s_switch;
struct expression *c_case;
struct {
char *name;
struct expression *expr;
struct executable_statement *statements;
} set, let;
char *unset;
struct {
enum {
log_priority_fatal,
log_priority_error,
log_priority_debug,
log_priority_info
} priority;
struct expression *expr;
} log;
} data;
};
