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/* $OpenBSD: filesys-os.c,v 1.13 2015/01/20 09:00:16 guenther Exp $ */ |
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/* |
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* Copyright (c) 1983 Regents of the University of California. |
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* All rights reserved. |
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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. 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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#include <sys/types.h> |
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#include <sys/mount.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "server.h" |
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/* |
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* OS specific file system routines |
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*/ |
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static struct statfs *mnt = NULL; |
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static int entries_left; |
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/* |
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* getfsstat() version of get mount info routines. |
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*/ |
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int |
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setmountent(void) |
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{ |
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long size; |
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size = getfsstat(NULL, 0, MNT_WAIT); |
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if (size == -1) |
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return (0); |
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free(mnt); |
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size *= sizeof(struct statfs); |
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mnt = xmalloc(size); |
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entries_left = getfsstat(mnt, size, MNT_WAIT); |
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if (entries_left == -1) |
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return (0); |
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return (1); |
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} |
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/* |
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* getfsstat() version of getmountent() |
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*/ |
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mntent_t * |
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getmountent(void) |
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{ |
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static mntent_t mntstruct; |
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static char remote_dev[HOST_NAME_MAX+1 + PATH_MAX + 1]; |
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if (!entries_left) |
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return (NULL); |
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memset(&mntstruct, 0, sizeof(mntstruct)); |
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if (mnt->f_flags & MNT_RDONLY) |
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mntstruct.me_flags |= MEFLAG_READONLY; |
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if (strcmp(mnt->f_fstypename, "nfs") == 0) { |
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strlcpy(remote_dev, mnt->f_mntfromname, sizeof(remote_dev)); |
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mntstruct.me_path = remote_dev; |
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mntstruct.me_flags |= MEFLAG_NFS; |
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} else |
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mntstruct.me_path = mnt->f_mntonname; |
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mnt++; |
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entries_left--; |
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return (&mntstruct); |
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} |
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/* |
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* Done with iterations |
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*/ |
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void |
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endmountent(void) |
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{ |
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free(mnt); |
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mnt = NULL; |
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} |
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/* |
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* Make a new (copy) of a mntent structure. |
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*/ |
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mntent_t * |
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newmountent(const mntent_t *old) |
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{ |
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mntent_t *new; |
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new = xmalloc(sizeof *new); |
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new->me_path = xstrdup(old->me_path); |
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new->me_flags = old->me_flags; |
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return (new); |
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} |