wr_bparam.c revision 131702 
1/*
2 * Copyright (c) 1997-2004 Erez Zadok
3 * Copyright (c) 1989 Jan-Simon Pendry
4 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1989 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgment:
21 *      This product includes software developed by the University of
22 *      California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *      %W% (Berkeley) %G%
40 *
41 * $Id: wr_bparam.c,v 1.3.2.4 2004/01/06 03:15:23 ezk Exp $
42 *
43 */
44
45#ifdef HAVE_CONFIG_H
46# include <config.h>
47#endif /* HAVE_CONFIG_H */
48#include <am_defs.h>
49#include <fsi_data.h>
50#include <fsinfo.h>
51
52
53/*
54 * Write a host/path in NFS format
55 */
56static int
57write_nfsname(FILE *ef, fsmount *fp, char *hn)
58{
59  int errors = 0;
60  char *h = strdup(fp->f_ref->m_dk->d_host->h_hostname);
61
62 domain_strip(h, hn);
63  fprintf(ef, "%s:%s", h, fp->f_volname);
64  XFREE(h);
65  return errors;
66}
67
68
69/*
70 * Write a bootparams entry for a host
71 */
72static int
73write_boot_info(FILE *ef, host *hp)
74{
75  int errors = 0;
76
77  fprintf(ef, "%s\troot=", hp->h_hostname);
78  errors += write_nfsname(ef, hp->h_netroot, hp->h_hostname);
79  fputs(" swap=", ef);
80  errors += write_nfsname(ef, hp->h_netswap, hp->h_hostname);
81  fputs("\n", ef);
82
83  return 0;
84}
85
86
87/*
88 * Output a bootparams file
89 */
90int
91write_bootparams(qelem *q)
92{
93  int errors = 0;
94
95  if (bootparams_pref) {
96    FILE *ef = pref_open(bootparams_pref, "bootparams", info_hdr, "bootparams");
97    if (ef) {
98      host *hp;
99      ITER(hp, host, q)
100      if (hp->h_netroot && hp->h_netswap)
101	  errors += write_boot_info(ef, hp);
102      errors += pref_close(ef);
103    } else {
104      errors++;
105    }
106  }
107
108  return errors;
109}
110