yaffsfs.c: Fix NULL dereference in yaffs_unmount2_reldev()
[yaffs2.git] / direct / test-framework / unit_tests / quick_tests / test_yaffs_link_EEXIST.c
1 /*
2  * YAFFS: Yet another FFS. A NAND-flash specific file system.
3  *
4  * Copyright (C) 2002-2018 Aleph One Ltd.
5  *
6  * Created by Timothy Manning <timothy@yaffs.net>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12
13 #include "test_yaffs_link_EEXIST.h"
14
15
16
17 int test_yaffs_link_EEXIST(void)
18 {
19         int output=0;   
20         int error =0;
21         if (yaffs_close(yaffs_open(FILE_PATH,O_CREAT | O_RDWR, FILE_MODE))==-1){
22                 print_message("failed to create file\n",1);
23                 return -1;
24         }
25         output = yaffs_link(FILE_PATH,HARD_LINK_PATH);
26         if (output<0){
27                 print_message("failed to create the first hard link\n",2);
28                 return -1;
29         }
30
31         output = yaffs_link(FILE_PATH,HARD_LINK_PATH);
32         if (output<0){
33                 error=yaffs_get_error();
34                 if (abs(error)==EEXIST){
35                         return 1;
36                 } else {
37                         print_message("different error than expected\n",2);
38                         return -1;
39                 }
40         } else {
41                 print_message("created a hard link to a non-existing-file (which is a bad thing)\n",2);
42                 return -1;      
43         }
44 }
45
46
47 int test_yaffs_link_EEXIST_clean(void)
48 {
49         int output=0;   
50         int error =0;
51         output= yaffs_unlink(HARD_LINK_PATH);
52         if (output<0){
53                 error=yaffs_get_error();
54                 if (abs(error)==ENOENT){
55                         //if the file does not exist then the error should be ENOENT.
56                         return 1;
57                 } else {
58                         print_message("different error than expected\n",2);
59                         return -1;
60                 }
61         } else {
62                 return 1;       /* the file failed to open so there is no need to close it */
63         }
64 }
65