148 lines
4.2 KiB
C
148 lines
4.2 KiB
C
/* $NetBSD: mtabutil.c,v 1.1.1.4 1998/08/08 22:05:25 christos Exp $ */
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/*
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* Copyright (c) 1997-1998 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 acknowledgement:
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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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* %W% (Berkeley) %G%
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*
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* Id: mtab_bsd.c,v 5.2.2.2 1992/11/12 23:29:14 jsp Exp
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*
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*/
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/*
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* BSD 4.4 systems don't write their mount tables on a file. Instead, they
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* use a (better) system where the kernel keeps this state, and you access
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* the mount tables via a known interface.
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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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#include <amu.h>
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static mntent_t *
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mnt_dup(struct statfs *mp)
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{
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mntent_t *new_mp = ALLOC(mntent_t);
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char *ty;
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new_mp->mnt_fsname = strdup(mp->f_mntfromname);
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new_mp->mnt_dir = strdup(mp->f_mntonname);
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#ifdef HAVE_FIELD_STRUCT_STATFS_F_FSTYPENAME
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ty = mp->f_fstypename;
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#else /* not HAVE_FIELD_STRUCT_STATFS_F_FSTYPENAME */
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switch (mp->f_type) {
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# if defined(MOUNT_UFS) && defined(MNTTAB_TYPE_UFS)
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case MOUNT_UFS:
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ty = MNTTAB_TYPE_UFS;
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break;
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# endif /* defined(MOUNT_UFS) && defined(MNTTAB_TYPE_UFS) */
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# if defined(MOUNT_NFS) && defined(MNTTAB_TYPE_NFS)
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case MOUNT_NFS:
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ty = MNTTAB_TYPE_NFS;
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break;
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# endif /* defined(MOUNT_NFS) && defined(MNTTAB_TYPE_NFS) */
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# if defined(MOUNT_MFS) && defined(MNTTAB_TYPE_MFS)
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case MOUNT_MFS:
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ty = MNTTAB_TYPE_MFS;
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break;
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# endif /* defined(MOUNT_MFS) && defined(MNTTAB_TYPE_MFS) */
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default:
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ty = "unknown";
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break;
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}
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#endif /* not HAVE_FIELD_STRUCT_STATFS_F_FSTYPENAME */
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new_mp->mnt_type = strdup(ty);
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new_mp->mnt_opts = strdup("unset");
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new_mp->mnt_freq = 0;
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new_mp->mnt_passno = 0;
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return new_mp;
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}
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/*
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* Read a mount table into memory
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*/
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mntlist *
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read_mtab(char *fs, const char *mnttabname)
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{
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mntlist **mpp, *mhp;
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struct statfs *mntbufp, *mntp;
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int nloc = getmntinfo(&mntbufp, MNT_NOWAIT);
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if (nloc == 0) {
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plog(XLOG_ERROR, "Can't read mount table");
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return 0;
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}
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mpp = &mhp;
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for (mntp = mntbufp; mntp < mntbufp + nloc; mntp++) {
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/*
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* Allocate a new slot
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*/
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*mpp = ALLOC(struct mntlist);
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/*
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* Copy the data returned by getmntent
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*/
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(*mpp)->mnt = mnt_dup(mntp);
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/*
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* Move to next pointer
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*/
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mpp = &(*mpp)->mnext;
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}
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/*
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* Terminate the list
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*/
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*mpp = 0;
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return mhp;
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}
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