wr_exportfs.c

早期freebsd实现

/*
 * Copyright (c) 1989 Jan-Simon Pendry
 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Jan-Simon Pendry at Imperial College, London.
 *
 * 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.
 *
 *	@(#)wr_exportfs.c	8.1 (Berkeley) 6/6/93
 *
 * $Id: wr_exportfs.c,v 5.2.2.1 1992/02/09 15:09:48 jsp beta $
 *
 */

#include "../fsinfo/fsinfo.h"

static int write_export_info(ef, q, errors)
FILE *ef;
qelem *q;
int errors;
{
	mount *mp;

	ITER(mp, mount, q) {
		if (mp->m_mask & (1<<DM_EXPORTFS))
			fprintf(ef, "%s\t%s\n", mp->m_volname, mp->m_exportfs);
		if (mp->m_mount)
			errors += write_export_info(ef, mp->m_mount, 0);
	}

	return errors;
}

static int write_dkexports(ef, q)
FILE *ef;
qelem *q;
{
	int errors = 0;
	disk_fs *dp;

	ITER(dp, disk_fs, q) {
		if (dp->d_mount)
			errors += write_export_info(ef, dp->d_mount, 0);
	}
	return errors;
}

int write_exportfs(q)
qelem *q;
{
	int errors = 0;

	if (exportfs_pref) {
		host *hp;
		show_area_being_processed("write exportfs", "");
		ITER(hp, host, q) {
			if (hp->h_disk_fs) {
				FILE *ef = pref_open(exportfs_pref, hp->h_hostname, gen_hdr, hp->h_hostname);
				if (ef) {
					show_new(hp->h_hostname);
					errors += write_dkexports(ef, hp->h_disk_fs);
					errors += pref_close(ef);
				} else {
					errors++;
				}
			}
		}
	}

	return errors;
}