1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 1997-2009 Erez Zadok
5 * Copyright (c) 1990 Jan-Simon Pendry
6 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
7 * Copyright (c) 1990 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. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgment:
23 *      This product includes software developed by the University of
24 *      California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 *    may be used to endorse or promote products derived from this software
27 *    without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 *
41 *
42 * File: am-utils/conf/checkmount/checkmount_aix.c
43 *
44 */
45
46#ifdef HAVE_CONFIG_H
47# include <config.h>
48#endif /* HAVE_CONFIG_H */
49#include <am_defs.h>
50
51
52/*
53 * These were missing external definitions from old AIX's headers.  They
54 * appear to be available in <sys/vmount.h> on AIX 5.3, and possibly
55 * earlier. Hence I commented this out.
56 */
57#ifndef HAVE_EXTERN_MNTCTL
58extern int mntctl(int cmd, int size, voidp buf);
59#endif /* not HAVE_EXTERN_MNTCTL */
60extern int is_same_host(char *name1, char *name2, struct in_addr addr2);
61
62
63int
64fixmount_check_mount(char *host, struct in_addr hostaddr, char *path)
65{
66  int ret, i;
67  char *mntinfo = NULL, *cp;
68  char *short_hostname, *long_hostname, *mount_point;
69  struct vmount *vp;
70
71  /*
72   * First figure out size of mount table and allocate space for a copy...
73   * Then get mount table for real.
74   */
75  ret = mntctl(MCTL_QUERY, sizeof(i), (char *) &i);
76  if (ret == 0) {
77    mntinfo = xmalloc(i);
78    ret = mntctl(MCTL_QUERY, i, mntinfo);
79  }
80  if (ret <= 0) {
81    fprintf(stderr, "mntctl: %m");
82    XFREE(mntinfo);
83    exit(1);
84  }
85
86  /* iterate over each vmount structure */
87  for (i = 0, cp = mntinfo; i < ret; i++, cp += vp->vmt_length) {
88    vp = (struct vmount *) cp;
89    mount_point = vmt2dataptr(vp, VMT_STUB);
90    long_hostname = vmt2dataptr(vp, VMT_HOSTNAME);
91    short_hostname = vmt2dataptr(vp, VMT_HOST);
92    if (STREQ(path, mount_point) &&
93	(is_same_host(long_hostname, host, hostaddr) ||
94	 is_same_host(short_hostname, host, hostaddr)))
95      return 1;
96  }
97
98  return 0;
99}
100