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-rw-r--r--cpukit/libmisc/shell/mknod-pack_dev.c300
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diff --git a/cpukit/libmisc/shell/mknod-pack_dev.c b/cpukit/libmisc/shell/mknod-pack_dev.c
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+/* $NetBSD: pack_dev.c,v 1.10 2009/02/13 01:37:23 lukem Exp $ */
+
+/*-
+ * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#if 0
+#include <sys/cdefs.h>
+#if !defined(lint)
+__RCSID("$NetBSD: pack_dev.c,v 1.10 2009/02/13 01:37:23 lukem Exp $");
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "pack_dev.h"
+#endif
+
+static pack_t pack_netbsd;
+static pack_t pack_freebsd;
+static pack_t pack_8_8;
+static pack_t pack_12_20;
+static pack_t pack_14_18;
+static pack_t pack_8_24;
+static pack_t pack_bsdos;
+static int compare_format(const void *, const void *);
+
+static const char iMajorError[] = "invalid major number";
+static const char iMinorError[] = "invalid minor number";
+static const char tooManyFields[] = "too many fields for format";
+
+#define makedev(x,y) rtems_filesystem_make_dev_t(x,y)
+#define major(d) rtems_filesystem_dev_major_t(d)
+#define minor(d) rtems_filesystem_dev_minor_t(d)
+
+ /* exported */
+portdev_t
+pack_native(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev(numbers[0], numbers[1]);
+ if ((u_long)major(dev) != numbers[0])
+ *error = iMajorError;
+ else if ((u_long)minor(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+static portdev_t
+pack_netbsd(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_netbsd(numbers[0], numbers[1]);
+ if ((u_long)major_netbsd(dev) != numbers[0])
+ *error = iMajorError;
+ else if ((u_long)minor_netbsd(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+#define major_freebsd(x) ((int32_t)(((x) & 0x0000ff00) >> 8))
+#define minor_freebsd(x) ((int32_t)(((x) & 0xffff00ff) >> 0))
+#define makedev_freebsd(x,y) ((portdev_t)((((x) << 8) & 0x0000ff00) | \
+ (((y) << 0) & 0xffff00ff)))
+
+static portdev_t
+pack_freebsd(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_freebsd(numbers[0], numbers[1]);
+ if ((u_long)major_freebsd(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)minor_freebsd(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+#define major_8_8(x) ((int32_t)(((x) & 0x0000ff00) >> 8))
+#define minor_8_8(x) ((int32_t)(((x) & 0x000000ff) >> 0))
+#define makedev_8_8(x,y) ((portdev_t)((((x) << 8) & 0x0000ff00) | \
+ (((y) << 0) & 0x000000ff)))
+
+static portdev_t
+pack_8_8(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_8_8(numbers[0], numbers[1]);
+ if ((u_long)major_8_8(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)minor_8_8(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+#define major_12_20(x) ((int32_t)(((x) & 0xfff00000) >> 20))
+#define minor_12_20(x) ((int32_t)(((x) & 0x000fffff) >> 0))
+#define makedev_12_20(x,y) ((portdev_t)((((x) << 20) & 0xfff00000) | \
+ (((y) << 0) & 0x000fffff)))
+
+static portdev_t
+pack_12_20(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_12_20(numbers[0], numbers[1]);
+ if ((u_long)major_12_20(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)minor_12_20(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+#define major_14_18(x) ((int32_t)(((x) & 0xfffc0000) >> 18))
+#define minor_14_18(x) ((int32_t)(((x) & 0x0003ffff) >> 0))
+#define makedev_14_18(x,y) ((portdev_t)((((x) << 18) & 0xfffc0000) | \
+ (((y) << 0) & 0x0003ffff)))
+
+static portdev_t
+pack_14_18(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_14_18(numbers[0], numbers[1]);
+ if ((u_long)major_14_18(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)minor_14_18(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+#define major_8_24(x) ((int32_t)(((x) & 0xff000000) >> 24))
+#define minor_8_24(x) ((int32_t)(((x) & 0x00ffffff) >> 0))
+#define makedev_8_24(x,y) ((portdev_t)((((x) << 24) & 0xff000000) | \
+ (((y) << 0) & 0x00ffffff)))
+
+static portdev_t
+pack_8_24(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_8_24(numbers[0], numbers[1]);
+ if ((u_long)major_8_24(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)minor_8_24(dev) != numbers[1])
+ *error = iMinorError;
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+#define major_12_12_8(x) ((int32_t)(((x) & 0xfff00000) >> 20))
+#define unit_12_12_8(x) ((int32_t)(((x) & 0x000fff00) >> 8))
+#define subunit_12_12_8(x) ((int32_t)(((x) & 0x000000ff) >> 0))
+#define makedev_12_12_8(x,y,z) ((portdev_t)((((x) << 20) & 0xfff00000) | \
+ (((y) << 8) & 0x000fff00) | \
+ (((z) << 0) & 0x000000ff)))
+
+static portdev_t
+pack_bsdos(int n, u_long numbers[], const char **error)
+{
+ portdev_t dev = 0;
+
+ if (n == 2) {
+ dev = makedev_12_20(numbers[0], numbers[1]);
+ if ((u_long)major_12_20(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)minor_12_20(dev) != numbers[1])
+ *error = iMinorError;
+ } else if (n == 3) {
+ dev = makedev_12_12_8(numbers[0], numbers[1], numbers[2]);
+ if ((u_long)major_12_12_8(dev) != numbers[0])
+ *error = iMajorError;
+ if ((u_long)unit_12_12_8(dev) != numbers[1])
+ *error = "invalid unit number";
+ if ((u_long)subunit_12_12_8(dev) != numbers[2])
+ *error = "invalid subunit number";
+ } else
+ *error = tooManyFields;
+ return (dev);
+}
+
+
+ /* list of formats and pack functions */
+ /* this list must be sorted lexically */
+struct format {
+ const char *name;
+ pack_t *pack;
+} formats[] = {
+ {"386bsd", pack_8_8},
+ {"4bsd", pack_8_8},
+ {"bsdos", pack_bsdos},
+ {"freebsd", pack_freebsd},
+ {"hpux", pack_8_24},
+ {"isc", pack_8_8},
+ {"linux", pack_8_8},
+ {"native", pack_native},
+ {"netbsd", pack_netbsd},
+ {"osf1", pack_12_20},
+ {"sco", pack_8_8},
+ {"solaris", pack_14_18},
+ {"sunos", pack_8_8},
+ {"svr3", pack_8_8},
+ {"svr4", pack_14_18},
+ {"ultrix", pack_8_8},
+};
+
+static int
+compare_format(const void *key, const void *element)
+{
+ const char *name;
+ const struct format *format;
+
+ name = key;
+ format = element;
+
+ return (strcmp(name, format->name));
+}
+
+
+pack_t *
+pack_find(const char *name)
+{
+ struct format *format;
+
+ format = bsearch(name, formats,
+ sizeof(formats)/sizeof(formats[0]),
+ sizeof(formats[0]), compare_format);
+ if (format == 0)
+ return (NULL);
+ return (format->pack);
+}
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