external/bsd/dhcp/dist/includes/statement.h

   1 /*      $NetBSD: statement.h,v 1.1.1.3 2014/07/12 11:57:56 spz Exp $    */
   2 /* statement.h
   3
   4    Definitions for executable statements... */
   5
   6 /*
   7  * Copyright (c) 2004,2007,2009,2014 by Internet Systems Consortium, Inc. ("ISC")
   8  * Copyright (c) 1996-2003 by Internet Software Consortium
   9  *
  10  * Permission to use, copy, modify, and distribute this software for any
  11  * purpose with or without fee is hereby granted, provided that the above
  12  * copyright notice and this permission notice appear in all copies.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
  15  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  16  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
  17  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  18  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  19  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  20  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  21  *
  22  *   Internet Systems Consortium, Inc.
  23  *   950 Charter Street
  24  *   Redwood City, CA 94063
  25  *   <info@isc.org>
  26  *   https://www.isc.org/
  27  *
  28  */
  29
  30 struct executable_statement {
  31         int refcnt;
  32         struct executable_statement *next;
  33         enum statement_op {
  34                 null_statement,
  35                 if_statement,
  36                 add_statement,
  37                 eval_statement,
  38                 break_statement,
  39                 default_option_statement,
  40                 supersede_option_statement,
  41                 append_option_statement,
  42                 prepend_option_statement,
  43                 send_option_statement,
  44                 statements_statement,
  45                 on_statement,
  46                 switch_statement,
  47                 case_statement,
  48                 default_statement,
  49                 set_statement,
  50                 unset_statement,
  51                 let_statement,
  52                 define_statement,
  53                 log_statement,
  54                 return_statement,
  55                 execute_statement
  56         } op;
  57         union {
  58                 struct {
  59                         struct executable_statement *tc, *fc;
  60                         struct expression *expr;
  61                 } ie;
  62                 struct expression *eval;
  63                 struct expression *retval;
  64                 struct class *add;
  65                 struct option_cache *option;
  66                 struct option_cache *supersede;
  67                 struct option_cache *prepend;
  68                 struct option_cache *append;
  69                 struct executable_statement *statements;
  70                 struct {
  71                         int evtypes;
  72 #                       define ON_COMMIT  1
  73 #                       define ON_EXPIRY  2
  74 #                       define ON_RELEASE 4
  75 #                       define ON_TRANSMISSION 8
  76                         struct executable_statement *statements;
  77                 } on;
  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;
  86                         struct executable_statement *statements;
  87                 } set, let;
  88                 char *unset;
  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;
  98                 struct {
  99                         char *command;
 100                         struct expression *arglist;
 101                         int argc;
 102                 } execute;
 103         } data;
 104 };
 105