79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/* $NetBSD: fdesc.h,v 1.22 2014/07/13 11:23:01 hannken Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software donated to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)fdesc.h 8.8 (Berkeley) 4/3/95
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*
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* #Id: fdesc.h,v 1.8 1993/04/06 15:28:33 jsp Exp #
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*/
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#ifdef _KERNEL
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#define FD_ROOT 2
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#define FD_DEVFD 3
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#define FD_STDIN 4
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#define FD_STDOUT 5
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#define FD_STDERR 6
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#define FD_CTTY 7
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#define FD_DESC 8
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#define FD_MAX 12
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typedef enum {
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Froot,
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Fdevfd,
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Fdesc,
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Flink,
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Fctty
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} fdntype;
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struct fdescnode {
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struct vnode *fd_vnode; /* Back ptr to vnode */
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fdntype fd_type; /* Type of this node */
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unsigned fd_fd; /* Fd to be dup'ed */
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const char *fd_link; /* Link to fd/n */
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int fd_ix; /* filesystem index */
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};
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#define VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)
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#define FDESC_MAXNAMLEN 255
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extern dev_t devctty;
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extern void fdesc_init(void);
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extern void fdesc_done(void);
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extern int fdesc_root(struct mount *, struct vnode **);
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extern int fdesc_allocvp(fdntype, int, struct mount *, struct vnode **);
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extern int (**fdesc_vnodeop_p)(void *);
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extern struct vfsops fdesc_vfsops;
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#endif /* _KERNEL */
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