[thirdparty/dhcp.git] / includes / statement.h

/* statement.h

   Definitions for executable statements... */

/*
 * Copyright (c) 2004-2017 by Internet Systems Consortium, Inc. ("ISC")
 * Copyright (c) 1996-2003 by Internet Software Consortium
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *   Internet Systems Consortium, Inc.
 *   950 Charter Street
 *   Redwood City, CA 94063
 *   <info@isc.org>
 *   https://www.isc.org/
 *
 */

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,
		execute_statement,
		vendor_opt_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;
		struct {
			char *command;
			struct expression *arglist;
			int argc;
		} execute;
	} data;
};
Commit	Line	Data
ae0b5b7d TL	1	/* statement.h
	2
	3	Definitions for executable statements... */
	4
	5	/*
7512d88b	6	* Copyright (c) 2004-2017 by Internet Systems Consortium, Inc. ("ISC")
98311e4b	7	* Copyright (c) 1996-2003 by Internet Software Consortium
ae0b5b7d	8	*
7512d88b TM	9	* This Source Code Form is subject to the terms of the Mozilla Public
	10	* License, v. 2.0. If a copy of the MPL was not distributed with this
	11	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
ae0b5b7d	12	*
98311e4b DH	13	* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
	14	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	15	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
	16	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	17	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	18	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
	19	* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
ae0b5b7d	20	*
98311e4b DH	21	* Internet Systems Consortium, Inc.
	22	* 950 Charter Street
	23	* Redwood City, CA 94063
	24	* <info@isc.org>
2c85ac9b	25	* https://www.isc.org/
49733f31	26	*
ae0b5b7d TL	27	*/
	28
	29	struct executable_statement {
79a65726	30	int refcnt;
ae0b5b7d TL	31	struct executable_statement *next;
ae0b5b7d TL	32	enum statement_op {
59ae3999	33	null_statement,
ae0b5b7d TL	34	if_statement,
	35	add_statement,
	36	eval_statement,
	37	break_statement,
	38	default_option_statement,
	39	supersede_option_statement,
	40	append_option_statement,
	41	prepend_option_statement,
95732025	42	send_option_statement,
79a65726	43	statements_statement,
c7b7a549 TL	44	on_statement,
	45	switch_statement,
	46	case_statement,
	47	default_statement,
24fe31eb TL	48	set_statement,
24fe31eb TL	49	unset_statement,
558f4a0a	50	let_statement,
e7a9c293	51	define_statement,
1b234d44	52	log_statement,
253c8b6a	53	return_statement,
45c332f0 SR	54	execute_statement,
45c332f0 SR	55	vendor_opt_statement
ae0b5b7d TL	56	} op;
	57	union {
	58	struct {
d758ad8c	59	struct executable_statement tc, fc;
ae0b5b7d TL	60	struct expression *expr;
	61	} ie;
	62	struct expression *eval;
1b234d44	63	struct expression *retval;
ae0b5b7d TL	64	struct class *add;
	65	struct option_cache *option;
	66	struct option_cache *supersede;
	67	struct option_cache *prepend;
	68	struct option_cache *append;
79a65726 TL	69	struct executable_statement *statements;
79a65726 TL	70	struct {
c7b7a549 TL	71	int evtypes;
	72	# define ON_COMMIT 1
	73	# define ON_EXPIRY 2
24fe31eb	74	# define ON_RELEASE 4
be80b1a6	75	# define ON_TRANSMISSION 8
79a65726 TL	76	struct executable_statement *statements;
79a65726 TL	77	} on;
c7b7a549 TL	78	struct {
	79	struct expression *expr;
	80	struct executable_statement *statements;
	81	} s_switch;
	82	struct expression *c_case;
	83	struct {
	84	char *name;
	85	struct expression *expr;
24fe31eb TL	86	struct executable_statement *statements;
	87	} set, let;
	88	char *unset;
e7a9c293 DN	89	struct {
	90	enum {
	91	log_priority_fatal,
	92	log_priority_error,
	93	log_priority_debug,
	94	log_priority_info
	95	} priority;
	96	struct expression *expr;
	97	} log;
253c8b6a EH	98	struct {
	99	char *command;
	100	struct expression *arglist;
	101	int argc;
	102	} execute;
ae0b5b7d TL	103	} data;
	104	};
	105