RTEMS 6.3
Loading...
Searching...
No Matches
mknod-pack_dev.c
1/* $NetBSD: pack_dev.c,v 1.10 2009/02/13 01:37:23 lukem Exp $ */
2
3/*-
4 * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifdef HAVE_CONFIG_H
33#include "config.h"
34#endif
35
36#if HAVE_NBTOOL_CONFIG_H
37#include "nbtool_config.h"
38#endif
39
40#if 0
41#include <sys/cdefs.h>
42#if !defined(lint)
43__RCSID("$NetBSD: pack_dev.c,v 1.10 2009/02/13 01:37:23 lukem Exp $");
44#endif /* not lint */
45
46#include <sys/types.h>
47#include <sys/stat.h>
48
49#include <limits.h>
50#include <stdio.h>
51#include <stdlib.h>
52#include <string.h>
53#include <unistd.h>
54
55#include "pack_dev.h"
56#endif
57
58static pack_t pack_netbsd;
59static pack_t pack_freebsd;
60static pack_t pack_8_8;
61static pack_t pack_12_20;
62static pack_t pack_14_18;
63static pack_t pack_8_24;
64static pack_t pack_bsdos;
65static int compare_format(const void *, const void *);
66
67static const char iMajorError[] = "invalid major number";
68static const char iMinorError[] = "invalid minor number";
69static const char tooManyFields[] = "too many fields for format";
70
71#define makedev(x,y) rtems_filesystem_make_dev_t(x,y)
72#define major(d) rtems_filesystem_dev_major_t(d)
73#define minor(d) rtems_filesystem_dev_minor_t(d)
74
75 /* exported */
76portdev_t
77pack_native(int n, u_long numbers[], const char **error)
78{
79 portdev_t dev = 0;
80
81 if (n == 2) {
82 dev = makedev(numbers[0], numbers[1]);
83 if ((u_long)major(dev) != numbers[0])
84 *error = iMajorError;
85 else if ((u_long)minor(dev) != numbers[1])
86 *error = iMinorError;
87 } else
88 *error = tooManyFields;
89 return (dev);
90}
91
92
93static portdev_t
94pack_netbsd(int n, u_long numbers[], const char **error)
95{
96 portdev_t dev = 0;
97
98 if (n == 2) {
99 dev = makedev_netbsd(numbers[0], numbers[1]);
100 if ((u_long)major_netbsd(dev) != numbers[0])
101 *error = iMajorError;
102 else if ((u_long)minor_netbsd(dev) != numbers[1])
103 *error = iMinorError;
104 } else
105 *error = tooManyFields;
106 return (dev);
107}
108
109
110#define major_freebsd(x) ((int32_t)(((x) & 0x0000ff00) >> 8))
111#define minor_freebsd(x) ((int32_t)(((x) & 0xffff00ff) >> 0))
112#define makedev_freebsd(x,y) ((portdev_t)((((x) << 8) & 0x0000ff00) | \
113 (((y) << 0) & 0xffff00ff)))
114
115static portdev_t
116pack_freebsd(int n, u_long numbers[], const char **error)
117{
118 portdev_t dev = 0;
119
120 if (n == 2) {
121 dev = makedev_freebsd(numbers[0], numbers[1]);
122 if ((u_long)major_freebsd(dev) != numbers[0])
123 *error = iMajorError;
124 if ((u_long)minor_freebsd(dev) != numbers[1])
125 *error = iMinorError;
126 } else
127 *error = tooManyFields;
128 return (dev);
129}
130
131
132#define major_8_8(x) ((int32_t)(((x) & 0x0000ff00) >> 8))
133#define minor_8_8(x) ((int32_t)(((x) & 0x000000ff) >> 0))
134#define makedev_8_8(x,y) ((portdev_t)((((x) << 8) & 0x0000ff00) | \
135 (((y) << 0) & 0x000000ff)))
136
137static portdev_t
138pack_8_8(int n, u_long numbers[], const char **error)
139{
140 portdev_t dev = 0;
141
142 if (n == 2) {
143 dev = makedev_8_8(numbers[0], numbers[1]);
144 if ((u_long)major_8_8(dev) != numbers[0])
145 *error = iMajorError;
146 if ((u_long)minor_8_8(dev) != numbers[1])
147 *error = iMinorError;
148 } else
149 *error = tooManyFields;
150 return (dev);
151}
152
153
154#define major_12_20(x) ((int32_t)(((x) & 0xfff00000) >> 20))
155#define minor_12_20(x) ((int32_t)(((x) & 0x000fffff) >> 0))
156#define makedev_12_20(x,y) ((portdev_t)((((x) << 20) & 0xfff00000) | \
157 (((y) << 0) & 0x000fffff)))
158
159static portdev_t
160pack_12_20(int n, u_long numbers[], const char **error)
161{
162 portdev_t dev = 0;
163
164 if (n == 2) {
165 dev = makedev_12_20(numbers[0], numbers[1]);
166 if ((u_long)major_12_20(dev) != numbers[0])
167 *error = iMajorError;
168 if ((u_long)minor_12_20(dev) != numbers[1])
169 *error = iMinorError;
170 } else
171 *error = tooManyFields;
172 return (dev);
173}
174
175
176#define major_14_18(x) ((int32_t)(((x) & 0xfffc0000) >> 18))
177#define minor_14_18(x) ((int32_t)(((x) & 0x0003ffff) >> 0))
178#define makedev_14_18(x,y) ((portdev_t)((((x) << 18) & 0xfffc0000) | \
179 (((y) << 0) & 0x0003ffff)))
180
181static portdev_t
182pack_14_18(int n, u_long numbers[], const char **error)
183{
184 portdev_t dev = 0;
185
186 if (n == 2) {
187 dev = makedev_14_18(numbers[0], numbers[1]);
188 if ((u_long)major_14_18(dev) != numbers[0])
189 *error = iMajorError;
190 if ((u_long)minor_14_18(dev) != numbers[1])
191 *error = iMinorError;
192 } else
193 *error = tooManyFields;
194 return (dev);
195}
196
197
198#define major_8_24(x) ((int32_t)(((x) & 0xff000000) >> 24))
199#define minor_8_24(x) ((int32_t)(((x) & 0x00ffffff) >> 0))
200#define makedev_8_24(x,y) ((portdev_t)((((x) << 24) & 0xff000000) | \
201 (((y) << 0) & 0x00ffffff)))
202
203static portdev_t
204pack_8_24(int n, u_long numbers[], const char **error)
205{
206 portdev_t dev = 0;
207
208 if (n == 2) {
209 dev = makedev_8_24(numbers[0], numbers[1]);
210 if ((u_long)major_8_24(dev) != numbers[0])
211 *error = iMajorError;
212 if ((u_long)minor_8_24(dev) != numbers[1])
213 *error = iMinorError;
214 } else
215 *error = tooManyFields;
216 return (dev);
217}
218
219
220#define major_12_12_8(x) ((int32_t)(((x) & 0xfff00000) >> 20))
221#define unit_12_12_8(x) ((int32_t)(((x) & 0x000fff00) >> 8))
222#define subunit_12_12_8(x) ((int32_t)(((x) & 0x000000ff) >> 0))
223#define makedev_12_12_8(x,y,z) ((portdev_t)((((x) << 20) & 0xfff00000) | \
224 (((y) << 8) & 0x000fff00) | \
225 (((z) << 0) & 0x000000ff)))
226
227static portdev_t
228pack_bsdos(int n, u_long numbers[], const char **error)
229{
230 portdev_t dev = 0;
231
232 if (n == 2) {
233 dev = makedev_12_20(numbers[0], numbers[1]);
234 if ((u_long)major_12_20(dev) != numbers[0])
235 *error = iMajorError;
236 if ((u_long)minor_12_20(dev) != numbers[1])
237 *error = iMinorError;
238 } else if (n == 3) {
239 dev = makedev_12_12_8(numbers[0], numbers[1], numbers[2]);
240 if ((u_long)major_12_12_8(dev) != numbers[0])
241 *error = iMajorError;
242 if ((u_long)unit_12_12_8(dev) != numbers[1])
243 *error = "invalid unit number";
244 if ((u_long)subunit_12_12_8(dev) != numbers[2])
245 *error = "invalid subunit number";
246 } else
247 *error = tooManyFields;
248 return (dev);
249}
250
251
252 /* list of formats and pack functions */
253 /* this list must be sorted lexically */
254struct format {
255 const char *name;
256 pack_t *pack;
257} formats[] = {
258 {"386bsd", pack_8_8},
259 {"4bsd", pack_8_8},
260 {"bsdos", pack_bsdos},
261 {"freebsd", pack_freebsd},
262 {"hpux", pack_8_24},
263 {"isc", pack_8_8},
264 {"linux", pack_8_8},
265 {"native", pack_native},
266 {"netbsd", pack_netbsd},
267 {"osf1", pack_12_20},
268 {"sco", pack_8_8},
269 {"solaris", pack_14_18},
270 {"sunos", pack_8_8},
271 {"svr3", pack_8_8},
272 {"svr4", pack_14_18},
273 {"ultrix", pack_8_8},
274};
275
276static int
277compare_format(const void *key, const void *element)
278{
279 const char *name;
280 const struct format *format;
281
282 name = key;
283 format = element;
284
285 return (strcmp(name, format->name));
286}
287
288
289pack_t *
290pack_find(const char *name)
291{
292 struct format *format;
293
294 format = bsearch(name, formats,
295 sizeof(formats)/sizeof(formats[0]),
296 sizeof(formats[0]), compare_format);
297 if (format == 0)
298 return (NULL);
299 return (format->pack);
300}
format
Definition mknod-pack_dev.c:254
Generated by doxygen 1.18.0