/*      $NetBSD: wr_bparam.c,v 1.1.1.3 2015/01/17 16:34:17 christos Exp $       */

/*
* Copyright (c) 1997-2014 Erez Zadok
* Copyright (c) 1989 Jan-Simon Pendry
* Copyright (c) 1989 Imperial College of Science, Technology & Medicine
* Copyright (c) 1989 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. 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.
*
*
* File: am-utils/fsinfo/wr_bparam.c
*
*/

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <fsi_data.h>
#include <fsinfo.h>


/*
* Write a host/path in NFS format
*/
static int
write_nfsname(FILE *ef, fsmount *fp, char *hn)
{
 int errors = 0;
 char *h = xstrdup(fp->f_ref->m_dk->d_host->h_hostname);

domain_strip(h, hn);
 fprintf(ef, "%s:%s", h, fp->f_volname);
 XFREE(h);
 return errors;
}


/*
* Write a bootparams entry for a host
*/
static int
write_boot_info(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(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;
}