wr_bparam.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_bparam.c	8.1 (Berkeley) 6/6/93
 *
 * $Id: wr_bparam.c,v 5.2.2.1 1992/02/09 15:09:46 jsp beta $
 *
 */

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

/*
 * Write a host/path in NFS format
 */
static int write_nfsname(ef, fp, hn)
FILE *ef;
fsmount *fp;
char *hn;
{
	int errors = 0;
	char *h = strdup(fp->f_ref->m_dk->d_host->h_hostname);
	domain_strip(h, hn);
	fprintf(ef, "%s:%s", h, fp->f_volname);
	free(h);
	return errors;
}

/*
 * Write a bootparams entry for a host
 */
static int write_boot_info(ef, hp)
FILE *ef;
host *hp;
{
	int errors = 0;
	fprintf(ef, "%s\troot=", hp->h_hostname);
	errors += write_nfsname(ef, hp->h_netroot, hp->h_hostname);
	fputs(" swap=", ef);
	errors += write_nfsname(ef, hp->h_netswap, hp->h_hostname);
	fputs("\n", ef);

	return 0;
}

/*
 * Output a bootparams file
 */
int write_bootparams(q)
qelem *q;
{
	int errors = 0;

	if (bootparams_pref) {
		FILE *ef = pref_open(bootparams_pref, "bootparams", info_hdr, "bootparams");
		if (ef) {
			host *hp;
			ITER(hp, host, q)
				if (hp->h_netroot && hp->h_netswap)
					errors += write_boot_info(ef, hp);
			errors += pref_close(ef);
		} else {
			errors++;
		}
	}

	return errors;
}