/* * 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 1.1.1.1 1994/05/24 10:04:59 rgrimes 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 vop_t **fdesc_vnodeop_p; extern struct vfsops fdesc_vfsops; #endif /* KERNEL */