93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/* $NetBSD: checkmount_aix.c,v 1.1.1.5 2002/11/29 22:58:28 christos Exp $ */
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/*
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* Copyright (c) 1997-2002 Erez Zadok
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* Copyright (c) 1990 Jan-Simon Pendry
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* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry at Imperial College, London.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*
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* Id: checkmount_aix.c,v 1.7 2002/02/02 20:58:57 ezk Exp
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*
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <am_defs.h>
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/* external definitions */
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extern int is_same_host(char *name1, char *name2, struct in_addr addr2);
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extern int mntctl(int Command, int Size, char *Buffer);
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int
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fixmount_check_mount(char *host, struct in_addr hostaddr, char *path)
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{
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int ret, i;
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char *mntinfo = 0, *cp;
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char *short_hostname, *long_hostname, *mount_point;
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struct vmount *vp;
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/*
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* First figure out size of mount table and allocate space for a copy...
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* Then get mount table for real.
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*/
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ret = mntctl(MCTL_QUERY, sizeof(i), (char *) &i);
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if (ret == 0) {
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mntinfo = xmalloc(i);
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ret = mntctl(MCTL_QUERY, i, mntinfo);
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}
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if (ret <= 0) {
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fprintf(stderr, "mntctl: %m");
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XFREE(mntinfo);
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exit(1);
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}
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/* iterate over each vmount structure */
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for (i = 0, cp = mntinfo; i < ret; i++, cp += vp->vmt_length) {
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vp = (struct vmount *) cp;
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mount_point = vmt2dataptr(vp, VMT_STUB);
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long_hostname = vmt2dataptr(vp, VMT_HOSTNAME);
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short_hostname = vmt2dataptr(vp, VMT_HOST);
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if (STREQ(path, mount_point) &&
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(is_same_host(long_hostname, host, hostaddr) ||
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is_same_host(short_hostname, host, hostaddr)))
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return 1;
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}
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return 0;
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}
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