1 /*	$NetBSD: checkmount_osf.c,v 1.1.1.2 2009/03/20 20:26:50 christos Exp $	*/
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_osf.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 extern int is_same_host(char *name1, char *name2, struct in_addr addr2);
52 
53 
54 int
55 fixmount_check_mount(char *host, struct in_addr hostaddr, char *path)
56 {
57   int nentries, i;
58   struct statfs *fslist;
59   int found = 0;
60 
61   nentries = getmntinfo(&fslist, MNT_NOWAIT);
62   if (nentries <= 0) {
63     perror("getmntinfo");
64     exit(1);
65   }
66 
67   for (i = 0; !found && (i < nentries); i++) {
68     char *delim;
69 
70     /*
71      * Apparently two forms of nfs mount syntax are
72      * accepted: host:/path or /path@host
73      */
74     if ((delim = strchr(fslist[i].f_mntfromname, ':'))) {
75       *delim = '\0';
76       if ((STREQ(delim + 1, path) ||
77 	   STREQ(fslist[i].f_mntonname, path)) &&
78 	  is_same_host(fslist[i].f_mntfromname,
79 		       host, hostaddr))
80 	  found = 1;
81     } else if ((delim = strchr(fslist[i].f_mntfromname, '@'))) {
82       *delim = '\0';
83       if ((STREQ(fslist[i].f_mntfromname, path) ||
84 	   STREQ(fslist[i].f_mntonname, path)) &&
85 	  is_same_host(delim + 1, host, hostaddr))
86 	  found = 1;
87     }
88   }
89 
90   return found;
91 }
92