1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /****************************************************************************
33 * Included Files
34 ****************************************************************************/
35
36 #include "errno.h"
37 #include "stdlib.h"
38 #include "string.h"
39 #include "dirent.h"
40 #include "unistd.h"
41 #include "sys/select.h"
42 #include "sys/stat.h"
43 #include "sys/prctl.h"
44 #include "fs/dirent_fs.h"
45 #include "vnode.h"
46
47 /****************************************************************************
48 * Name: fscheck
49 ****************************************************************************/
fscheck(const char * path)50 int fscheck(const char *path)
51 {
52 int ret;
53 struct Vnode *vnode = NULL;
54 struct fs_dirent_s *dir = NULL;
55
56 /* Find the node matching the path. */
57 VnodeHold();
58 ret = VnodeLookup(path, &vnode, 0);
59 if (ret != OK) {
60 VnodeDrop();
61 goto errout;
62 }
63
64 dir = (struct fs_dirent_s *)zalloc(sizeof(struct fs_dirent_s));
65 if (!dir) {
66 /* Insufficient memory to complete the operation.*/
67 ret = -ENOMEM;
68 VnodeDrop();
69 goto errout;
70 }
71
72 if (vnode->vop && vnode->vop->Fscheck) {
73 ret = vnode->vop->Fscheck(vnode, dir);
74 if (ret != OK) {
75 VnodeDrop();
76 goto errout_with_direntry;
77 }
78 } else {
79 ret = -ENOSYS;
80 VnodeDrop();
81 goto errout_with_direntry;
82 }
83 VnodeDrop();
84
85 free(dir);
86 return 0;
87
88 errout_with_direntry:
89 free(dir);
90 errout:
91 set_errno(-ret);
92 return VFS_ERROR;
93 }
94