source: rtems/cpukit/libmisc/shell/mknod-pack_dev.c @ 7eada71

4.115
Last change on this file since 7eada71 was 9a77af8, checked in by Ralf Corsepius <ralf.corsepius@…>, on 03/26/10 at 17:18:43

Add HAVE_CONFIG_H support to let files receive configure defines.
  • Property mode set to 100644
File size: 8.0 KB
Line 
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}
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