config.y revision 72000 
1%union {
2	char	*str;
3	int	val;
4	struct	file_list *file;
5}
6
7%token	ARCH
8%token	COMMA
9%token	CONFIG
10%token	CPU
11%token	DEVICE
12%token	EQUALS
13%token	HINTS
14%token	IDENT
15%token	MAXUSERS
16%token	PROFILE
17%token	OPTIONS
18%token	MAKEOPTIONS
19%token	SEMICOLON
20
21%token	<str>	ID
22%token	<val>	NUMBER
23
24%type	<str>	Save_id
25%type	<str>	Opt_value
26%type	<str>	Dev
27
28%{
29
30/*
31 * Copyright (c) 1988, 1993
32 *	The Regents of the University of California.  All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 *    notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 *    notice, this list of conditions and the following disclaimer in the
41 *    documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 *    must display the following acknowledgement:
44 *	This product includes software developed by the University of
45 *	California, Berkeley and its contributors.
46 * 4. Neither the name of the University nor the names of its contributors
47 *    may be used to endorse or promote products derived from this software
48 *    without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 *
62 *	@(#)config.y	8.1 (Berkeley) 6/6/93
63 * $FreeBSD: head/usr.sbin/config/config.y 72000 2001-02-04 13:17:38Z peter $
64 */
65
66#include <ctype.h>
67#include <err.h>
68#include <stdio.h>
69#include <string.h>
70
71#include "config.h"
72
73static struct	device cur;
74static struct	device *curp = 0;
75
76struct  device *dtab;
77char	*ident;
78char	*hints;
79int	hintmode;
80int	yyline;
81struct  file_list *ftab;
82char	errbuf[80];
83int	maxusers;
84
85#define ns(s)	strdup(s)
86
87static void yyerror(char *s);
88
89static char *
90devopt(char *dev)
91{
92	char *ret = malloc(strlen(dev) + 5);
93
94	sprintf(ret, "DEV_%s", dev);
95	raisestr(ret);
96	return ret;
97}
98
99%}
100%%
101Configuration:
102	Many_specs
103		;
104
105Many_specs:
106	Many_specs Spec
107		|
108	/* lambda */
109		;
110
111Spec:
112	Device_spec SEMICOLON
113	      = { newdev(&cur); } |
114	Config_spec SEMICOLON
115		|
116	SEMICOLON
117		|
118	error SEMICOLON
119		;
120
121Config_spec:
122	ARCH Save_id
123	    = {
124		machinename = $2;
125	      } |
126	CPU Save_id
127	      = {
128		struct cputype *cp =
129		    (struct cputype *)malloc(sizeof (struct cputype));
130		memset(cp, 0, sizeof(*cp));
131		cp->cpu_name = $2;
132		cp->cpu_next = cputype;
133		cputype = cp;
134	      } |
135	OPTIONS Opt_list
136		|
137	MAKEOPTIONS Mkopt_list
138		|
139	IDENT ID
140	      = { ident = $2; } |
141	System_spec
142		|
143	MAXUSERS NUMBER
144	      = { maxusers = $2; } |
145	PROFILE NUMBER
146	      = { profiling = $2; } |
147	HINTS ID
148	      = {
149		      hints = $2;
150		      hintmode = 1;
151		};
152
153System_spec:
154	CONFIG System_id System_parameter_list
155	  = { errx(1, "line %d: root/dump/swap specifications obsolete", yyline);}
156	  |
157	CONFIG System_id
158	  ;
159
160System_id:
161	Save_id
162	      = {
163		struct opt *op = (struct opt *)malloc(sizeof (struct opt));
164		memset(op, 0, sizeof(*op));
165		op->op_name = ns("KERNEL");
166		op->op_ownfile = 0;
167		op->op_next = mkopt;
168		op->op_value = $1;
169		op->op_line = yyline + 1;
170		mkopt = op;
171	      };
172
173System_parameter_list:
174	  System_parameter_list ID
175	| ID
176	;
177
178Opt_list:
179	Opt_list COMMA Option
180		|
181	Option
182		;
183
184Option:
185	Save_id
186	      = {
187		struct opt *op = (struct opt *)malloc(sizeof (struct opt));
188		char *s;
189		memset(op, 0, sizeof(*op));
190		op->op_name = $1;
191		op->op_next = opt;
192		op->op_value = 0;
193		/*
194		 * op->op_line is 1-based; yyline is 0-based but is now 1
195		 * larger than when `Save_id' was lexed.
196		 */
197		op->op_line = yyline;
198		opt = op;
199		if ((s = strchr(op->op_name, '=')))
200			errx(1, "line %d: The `=' in options should not be quoted", yyline);
201	      } |
202	Save_id EQUALS Opt_value
203	      = {
204		struct opt *op = (struct opt *)malloc(sizeof (struct opt));
205		memset(op, 0, sizeof(*op));
206		op->op_name = $1;
207		op->op_next = opt;
208		op->op_value = $3;
209		op->op_line = yyline + 1;
210		opt = op;
211	      } ;
212
213Opt_value:
214	ID
215		= { $$ = $1; } |
216	NUMBER
217		= {
218			char buf[80];
219
220			(void) snprintf(buf, sizeof(buf), "%d", $1);
221			$$ = ns(buf);
222		} ;
223
224Save_id:
225	ID
226	      = { $$ = $1; }
227	;
228
229Mkopt_list:
230	Mkopt_list COMMA Mkoption
231		|
232	Mkoption
233		;
234
235Mkoption:
236	Save_id EQUALS Opt_value
237	      = {
238		struct opt *op = (struct opt *)malloc(sizeof (struct opt));
239		memset(op, 0, sizeof(*op));
240		op->op_name = $1;
241		op->op_ownfile = 0;	/* for now */
242		op->op_next = mkopt;
243		op->op_value = $3;
244		op->op_line = yyline + 1;
245		mkopt = op;
246	      } ;
247
248Dev:
249	ID
250	      = { $$ = $1; }
251	;
252
253Device_spec:
254	DEVICE Dev
255	      = {
256		struct opt *op = (struct opt *)malloc(sizeof (struct opt));
257		memset(op, 0, sizeof(*op));
258		op->op_name = devopt($2);
259		op->op_next = opt;
260		op->op_value = ns("1");
261		op->op_line = yyline;
262		opt = op;
263		/* and the device part */
264		cur.d_name = $2;
265		cur.d_count = UNKNOWN;
266		} |
267	DEVICE Dev NUMBER
268	      = {
269		struct opt *op = (struct opt *)malloc(sizeof (struct opt));
270		memset(op, 0, sizeof(*op));
271		op->op_name = devopt($2);
272		op->op_next = opt;
273		op->op_value = ns("1");
274		op->op_line = yyline;
275		opt = op;
276		/* and the device part */
277		cur.d_name = $2;
278		cur.d_count = $3;
279		if (cur.d_count == 0)
280			errx(1, "line %d: devices with zero units are not likely to be correct", yyline);
281		} ;
282
283%%
284
285static void
286yyerror(char *s)
287{
288
289	errx(1, "line %d: %s", yyline + 1, s);
290}
291
292/*
293 * add a device to the list of devices
294 */
295static void
296newdev(struct device *dp)
297{
298	struct device *np;
299
300	np = (struct device *) malloc(sizeof *np);
301	memset(np, 0, sizeof(*np));
302	*np = *dp;
303	np->d_name = dp->d_name;
304	np->d_count = dp->d_count;
305	np->d_next = 0;
306	if (curp == 0)
307		dtab = np;
308	else
309		curp->d_next = np;
310	curp = np;
311}
312