113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
/* $NetBSD: amfs_direct.c,v 1.1.1.9 2005/09/20 17:14:36 rpaulo Exp $ */
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/*
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* Copyright (c) 1997-2005 Erez Zadok
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* Copyright (c) 1990 Jan-Simon Pendry
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* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry at Imperial College, London.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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*
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* File: am-utils/amd/amfs_direct.c
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*
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*/
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/*
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* Direct file system
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <am_defs.h>
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#include <amd.h>
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/****************************************************************************
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*** FORWARD DEFINITIONS ***
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****************************************************************************/
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static am_node *amfs_direct_readlink(am_node *mp, int *error_return);
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/****************************************************************************
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*** OPS STRUCTURES ***
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****************************************************************************/
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am_ops amfs_direct_ops =
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{
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"direct",
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amfs_generic_match,
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0, /* amfs_direct_init */
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amfs_toplvl_mount,
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amfs_toplvl_umount,
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amfs_generic_lookup_child,
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amfs_generic_mount_child,
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amfs_error_readdir,
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amfs_direct_readlink,
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amfs_generic_mounted,
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0, /* amfs_direct_umounted */
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amfs_generic_find_srvr,
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0, /* amfs_direct_get_wchan */
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FS_DIRECT | FS_MKMNT | FS_NOTIMEOUT | FS_BACKGROUND | FS_AMQINFO,
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#ifdef HAVE_FS_AUTOFS
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AUTOFS_DIRECT_FS_FLAGS,
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#endif /* HAVE_FS_AUTOFS */
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};
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/****************************************************************************
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*** FUNCTIONS ***
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****************************************************************************/
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static am_node *
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amfs_direct_readlink(am_node *mp, int *error_return)
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{
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am_node *xp;
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int rc = 0;
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xp = next_nonerror_node(mp->am_child);
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if (!xp) {
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if (!mp->am_mnt->mf_private)
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amfs_mkcacheref(mp->am_mnt); /* XXX */
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xp = amfs_generic_lookup_child(mp, mp->am_path + 1, &rc, VLOOK_CREATE);
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if (xp && rc < 0)
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xp = amfs_generic_mount_child(xp, &rc);
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}
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if (xp) {
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new_ttl(xp); /* (7/12/89) from Rein Tollevik */
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return xp;
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}
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if (amd_state == Finishing)
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rc = ENOENT;
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*error_return = rc;
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return 0;
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}
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