1 files changed, 82 insertions, 0 deletions
diff --git a/sys/fs/fdescfs/fdesc.h b/sys/fs/fdescfs/fdesc.h
new file mode 100644
index 0000000..4c682e7
--- /dev/null
+++ b/sys/fs/fdescfs/fdesc.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software donated to Berkeley by
+ * Jan-Simon Pendry.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)fdesc.h	8.5 (Berkeley) 1/21/94
+ *
+ * $Id: fdesc.h,v 1.8 1993/04/06 15:28:33 jsp Exp $
+ */
+
+#ifdef KERNEL
+struct fdescmount {
+	struct vnode	*f_root;	/* Root node */
+};
+
+#define FD_ROOT		2
+#define FD_DEVFD	3
+#define FD_STDIN	4
+#define FD_STDOUT	5
+#define FD_STDERR	6
+#define FD_CTTY		7
+#define FD_DESC		8
+#define FD_MAX		12
+
+typedef enum {
+	Froot,
+	Fdevfd,
+	Fdesc,
+	Flink,
+	Fctty
+} fdntype;
+
+struct fdescnode {
+	struct fdescnode *fd_forw;	/* Hash chain */
+	struct fdescnode *fd_back;
+	struct vnode	*fd_vnode;	/* Back ptr to vnode */
+	fdntype		fd_type;	/* Type of this node */
+	unsigned	fd_fd;		/* Fd to be dup'ed */
+	char		*fd_link;	/* Link to fd/n */
+	int		fd_ix;		/* filesystem index */
+};
+
+#define VFSTOFDESC(mp)	((struct fdescmount *)((mp)->mnt_data))
+#define	VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)
+
+extern dev_t devctty;
+extern int fdesc_init __P((void));
+extern int fdesc_root __P((struct mount *, struct vnode **));
+extern int fdesc_allocvp __P((fdntype, int, struct mount *, struct vnode **));
+extern int (**fdesc_vnodeop_p)();
+extern struct vfsops fdesc_vfsops;
+#endif /* KERNEL */