2 * Copyright (c)2004 The DragonFly Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
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17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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36 * $Id: mount.c,v 1.4 2005/02/10 03:33:49 cpressey Exp $
40 #include <sys/param.h>
41 #include <sys/ucred.h>
42 #include <sys/mount.h>
50 #include "libaura/fspred.h"
53 #include "functions.h"
55 #if (__NetBSD_Version__ >= 200040000)
56 #define STATFS statvfs
61 static void unmount_all_under_r(struct i_fn_args *, struct commands *,
62 const char *, struct STATFS *, int);
65 unmount_all_under_r(struct i_fn_args *a, struct commands *cmds,
66 const char *mtpt, struct STATFS *mt_array, int count)
68 struct STATFS *mt_ptr;
72 for (mt_ptr = mt_array; k > 0; mt_ptr++, k--) {
73 if (strcmp(mt_ptr->f_mntonname, mtpt) == 0)
76 if (strncmp(mt_ptr->f_mntonname, mtpt, strlen(mtpt)) == 0 &&
77 strlen(mtpt) < strlen(mt_ptr->f_mntonname)) {
78 unmount_all_under_r(a, cmds,
79 mt_ptr->f_mntonname, mt_array, count);
84 command_add(cmds, "%s%s %s",
85 a->os_root, cmd_name(a, "UMOUNT"), mtpt);
90 * Unmount all mountpoints under a given mountpoint. Recursively unmounts
91 * dependent mountpoints, so that unmount_all'ing /mnt will first unmount
92 * /mnt/usr/local, then /mnt/usr, then /mnt itself.
95 unmount_all_under(struct i_fn_args *a, struct commands *cmds, const char *fmt, ...)
97 struct STATFS *mt_array;
103 vasprintf(&mtpt, fmt, args);
106 count = getmntinfo(&mt_array, MNT_WAIT);
107 unmount_all_under_r(a, cmds, mtpt, mt_array, count);