from amd5.3 alpha11

[unix-history] / usr / src / usr.sbin / amd / fsinfo / wr_bparam.c

/*
* $Id: wr_bparam.c,v 5.2.1.2 90/12/21 16:46:49 jsp Alpha $
*
* 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.
*
* %sccs.include.redist.c%
*
*      @(#)wr_bparam.c 5.2 (Berkeley) %G%
*/

#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;
}