1 /* $NetBSD: checkmount_aix.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_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 58 extern int mntctl(int cmd, int size, voidp buf); 59 #endif /* not HAVE_EXTERN_MNTCTL */ 60 extern int is_same_host(char *name1, char *name2, struct in_addr addr2); 61 62 63 int 64 fixmount_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