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wr_bparam.c revision 1.1.1.3 
      1 /*	$NetBSD: wr_bparam.c,v 1.1.1.3 2015/01/17 16:34:17 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997-2014 Erez Zadok
      5  * Copyright (c) 1989 Jan-Simon Pendry
      6  * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
      7  * Copyright (c) 1989 The Regents of the University of California.
      8  * All rights reserved.
      9  *
     10  * This code is derived from software contributed to Berkeley by
     11  * Jan-Simon Pendry at Imperial College, London.
     12  *
     13  * Redistribution and use in source and binary forms, with or without
     14  * modification, are permitted provided that the following conditions
     15  * are met:
     16  * 1. Redistributions of source code must retain the above copyright
     17  *    notice, this list of conditions and the following disclaimer.
     18  * 2. Redistributions in binary form must reproduce the above copyright
     19  *    notice, this list of conditions and the following disclaimer in the
     20  *    documentation and/or other materials provided with the distribution.
     21  * 3. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *
     38  * File: am-utils/fsinfo/wr_bparam.c
     39  *
     40  */
     41 
     42 #ifdef HAVE_CONFIG_H
     43 # include <config.h>
     44 #endif /* HAVE_CONFIG_H */
     45 #include <am_defs.h>
     46 #include <fsi_data.h>
     47 #include <fsinfo.h>
     48 
     49 
     50 /*
     51  * Write a host/path in NFS format
     52  */
     53 static int
     54 write_nfsname(FILE *ef, fsmount *fp, char *hn)
     55 {
     56   int errors = 0;
     57   char *h = xstrdup(fp->f_ref->m_dk->d_host->h_hostname);
     58 
     59  domain_strip(h, hn);
     60   fprintf(ef, "%s:%s", h, fp->f_volname);
     61   XFREE(h);
     62   return errors;
     63 }
     64 
     65 
     66 /*
     67  * Write a bootparams entry for a host
     68  */
     69 static int
     70 write_boot_info(FILE *ef, host *hp)
     71 {
     72   int errors = 0;
     73 
     74   fprintf(ef, "%s\troot=", hp->h_hostname);
     75   errors += write_nfsname(ef, hp->h_netroot, hp->h_hostname);
     76   fputs(" swap=", ef);
     77   errors += write_nfsname(ef, hp->h_netswap, hp->h_hostname);
     78   fputs("\n", ef);
     79 
     80   return 0;
     81 }
     82 
     83 
     84 /*
     85  * Output a bootparams file
     86  */
     87 int
     88 write_bootparams(qelem *q)
     89 {
     90   int errors = 0;
     91 
     92   if (bootparams_pref) {
     93     FILE *ef = pref_open(bootparams_pref, "bootparams", info_hdr, "bootparams");
     94     if (ef) {
     95       host *hp;
     96       ITER(hp, host, q)
     97       if (hp->h_netroot && hp->h_netswap)
     98 	  errors += write_boot_info(ef, hp);
     99       errors += pref_close(ef);
    100     } else {
    101       errors++;
    102     }
    103   }
    104 
    105   return errors;
    106 }
    107