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authorIgor Pashev <pashev.igor@gmail.com>2012-12-31 05:04:42 +0400
committerIgor Pashev <pashev.igor@gmail.com>2012-12-31 05:04:42 +0400
commit71dc8760ff4de5f365330d1bc571d934deb54af9 (patch)
tree7346d42a282562a3937d82307012b5857d642ce6 /include/device.h
downloadcdrkit-upstream.tar.gz
Imported Upstream version 1.1.11upstream/1.1.11upstream
Diffstat (limited to 'include/device.h')
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diff --git a/include/device.h b/include/device.h
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+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)device.h 1.13 05/01/24 Copyright 1995 J. Schilling */
+/*
+ * Generic header for users of major(), minor() and makedev()
+ *
+ * Copyright (c) 1995 J. Schilling
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _DEVICE_H
+#define _DEVICE_H
+
+#ifndef _MCONFIG_H
+#include <mconfig.h>
+#endif
+#ifndef _PROTOTYP_H
+#include <prototyp.h>
+#endif
+
+/*
+ * On generic SVR4, major is a function (defined in sys/mkdev.h).
+ * On Solaris it is defined ...
+ * As we cannot just test if major is #define'd, we have to
+ * define _FOUND_MAJOR_ instead.
+ *
+ * WARNING: Do never include <sys/sysmacros.h> in SVR4, it contains
+ * an old definition for major()/minor() defining 8 minorbits.
+ * Use <sys/mkdev.h> instead.
+ */
+#ifndef _INCL_SYS_TYPES_H
+#include <sys/types.h>
+#define _INCL_SYS_TYPES_H
+#endif
+/*
+ * Some systems define major in <sys/types.h>.
+ * We are ready...
+ */
+#ifdef major
+# define _FOUND_MAJOR_
+#endif
+
+#ifdef MAJOR_IN_MKDEV
+# ifndef _INCL_SYS_MKDEV_H
+# include <sys/mkdev.h>
+# define _INCL_SYS_MKDEV_H
+# endif
+ /*
+ * Interix doesn't use makedev(); it uses mkdev()
+ */
+# if !defined(makedev) && defined(mkdev)
+# define makedev(a,b) mkdev((a),(b))
+# endif
+# define _FOUND_MAJOR_
+#endif
+
+#ifndef _FOUND_MAJOR_
+# ifdef MAJOR_IN_SYSMACROS
+# ifndef _INCL_SYS_SYSMACROS_H
+# include <sys/sysmacros.h>
+# define _INCL_SYS_SYSMACROS_H
+# endif
+# define _FOUND_MAJOR_
+# endif
+#endif
+
+/*
+ * If we are on HP/UX before HP/UX 8,
+ * major/minor are not in <sys/sysmacros.h>.
+ */
+#ifndef _FOUND_MAJOR_
+# if defined(hpux) || defined(__hpux__) || defined(__hpux)
+# ifndef _INCL_SYS_MKOD_H
+# include <sys/mknod.h>
+# define _INCL_SYS_MKOD_H
+# endif
+# define _FOUND_MAJOR_
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * For all other systems define major()/minor() here.
+ * XXX Check if this definition will be usefull for ms dos too.
+ */
+#ifndef _FOUND_MAJOR_
+# define major(dev) (((dev) >> 8) & 0xFF)
+# define minor(dev) ((dev) & 0xFF)
+# define makedev(majo, mino) (((majo) << 8) | (mino))
+#endif
+
+/*
+ * Don't pollute namespace...
+ */
+#undef _FOUND_MAJOR_
+
+#ifdef __XDEV__
+/*
+ * The following defines are currently only needed for 'star'.
+ * We make it conditional code to avoid to pollute the namespace.
+ */
+#define XDEV_T unsigned long
+
+extern int minorbits;
+extern XDEV_T minormask;
+extern XDEV_T _dev_mask[];
+
+#define dev_major(dev) (((XDEV_T)(dev)) >> minorbits)
+#define _dev_major(mbits, dev) (((XDEV_T)(dev)) >> (mbits))
+
+#define dev_minor(dev) (((XDEV_T)(dev)) & minormask)
+#define _dev_minor(mbits, dev) (((XDEV_T)(dev)) & _dev_mask[(mbits)])
+
+
+#define dev_make(majo, mino) ((((XDEV_T)(majo)) << minorbits) | \
+ ((XDEV_T)(mino)))
+#define _dev_make(mbits, majo, mino) ((((XDEV_T)(majo)) << (mbits) | \
+ ((XDEV_T)(mino)))
+
+extern void dev_init(BOOL debug);
+#ifndef dev_major
+extern XDEV_T dev_major(XDEV_T dev);
+extern XDEV_T _dev_major(int mbits, XDEV_T dev);
+extern XDEV_T dev_minor(XDEV_T dev);
+extern XDEV_T _dev_minor(int mbits, XDEV_T dev);
+extern XDEV_T dev_make(XDEV_T majo, XDEV_T mino);
+extern XDEV_T _dev_make(int mbits, XDEV_T majo, XDEV_T mino);
+#endif
+
+#endif /* __XDEV__ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _DEVICE_H */