100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/* statement.h
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Definitions for executable statements... */
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/*
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* Copyright (c) 1996-1999 Internet Software Consortium.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of The Internet Software Consortium nor the names
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* of its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This software has been written for the Internet Software Consortium
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* by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
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* To learn more about the Internet Software Consortium, see
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* ``http://www.isc.org/''. To learn more about Vixie Enterprises,
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* see ``http://www.vix.com''. To learn more about Nominum, Inc., see
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* ``http://www.nominum.com''.
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*/
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struct executable_statement {
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int refcnt;
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struct executable_statement *next;
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enum statement_op {
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if_statement,
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add_statement,
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eval_statement,
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break_statement,
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default_option_statement,
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supersede_option_statement,
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append_option_statement,
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prepend_option_statement,
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send_option_statement,
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statements_statement,
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on_statement,
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switch_statement,
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case_statement,
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default_statement,
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set_statement,
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unset_statement,
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let_statement,
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define_statement
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} op;
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union {
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struct {
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struct executable_statement *true, *false;
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struct expression *expr;
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} ie;
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struct expression *eval;
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struct class *add;
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struct option_cache *option;
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struct option_cache *supersede;
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struct option_cache *prepend;
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struct option_cache *append;
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struct executable_statement *statements;
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struct {
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int evtypes;
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# define ON_COMMIT 1
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# define ON_EXPIRY 2
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# define ON_RELEASE 4
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struct executable_statement *statements;
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} on;
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struct {
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struct expression *expr;
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struct executable_statement *statements;
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} s_switch;
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struct expression *c_case;
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struct {
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char *name;
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struct expression *expr;
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struct executable_statement *statements;
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} set, let;
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char *unset;
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} data;
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};
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