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Decided not to use yacc because it's not available on Macs

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Ted Lemon 1996-02-29 18:05:16 +00:00
parent 05da297846
commit fe9d575c78
1 changed files with 0 additions and 114 deletions
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conf.y
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/* conf.y
Dhcpd configuration file grammar... */
/*
* Copyright (c) 1995 The 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 <mellon@fugue.com> in cooperation with Vixie
* Enterprises. To learn more about the Internet Software Consortium,
* see ``http://www.vix.com/isc''. To learn more about Vixie
* Enterprises, see ``http://www.vix.com''.
*/
%{
#include "dhcpd.h"
%}
%token HOST HARDWARE ETHERNET FILENAME FIXED_ADDRESS STRING
%token OCTET COLON DOT SEMI TOKEN OPTION
%start config
%%
config : config_items
;
config_items: /* blank */
| config_item
| config_items config_item
;
config_item: host_decl
;
host_decl: HOST hostname packet_decls SEMI
;
hostname: token
| token DOT hostname
;
packet_decls: /* empty */
| packet_decl
| packet_decls packet_decl
;
packet_decl: hardware_decl
| filename_decl
| fixed_addr_decl
| option_decl
;
hardware_decl: HARDWARE ETHERNET OCTET COLON OCTET COLON OCTET
COLON OCTET COLON OCTET COLON OCTET
;
filename_decl: FILENAME STRING
;
fixed_addr_decl: FIXED_ADDRESS host_address
;
host_address: hostname
| ip_address
;
ip_address: OCTET DOT OCTET
| OCTET DOT OCTET DOT OCTET DOT OCTET
;
option_decl: OPTION token STRING
;
token: reserved_word
| TOKEN
;
reserved_word: HOST
| HARDWARE
| ETHERNET
| FILENAME
| FIXED_ADDRESS
| OPTION
;