1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================
**
** Source: MapViewOfFile.c
**
** Purpose: Negative test the MapViewOfFile API.
** Call MapViewOfFile with all access modes, except
** read-only, on a read only map.
**
** Depends: CreateFile,
** CreateFileMapping,
** CloseHandle,
** UnMapViewOfFile.
**
**
**============================================================*/
#include <palsuite.h>
int __cdecl main(int argc, char *argv[])
{
HANDLE hFile;
BOOL err;
HANDLE hFileMapping;
LPVOID lpMapViewAddress;
DWORD dwBytesWritten;
const int MAPPINGSIZE = 2048;
char buf[] = "this is a test string";
char lpFileName[] = "test.tmp";
/* Initialize the PAL environment.
*/
if(0 != PAL_Initialize(argc, argv))
{
return FAIL;
}
/* Create a file handle with CreateFile.
*/
hFile = CreateFile( lpFileName,
GENERIC_WRITE|GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
Fail("ERROR: %u :unable to create file \"%s\".\n",
GetLastError(),
lpFileName);
}
/* Write to the File handle.
*/
err = WriteFile(hFile,
buf,
strlen(buf),
&dwBytesWritten,
NULL);
if ( !FlushFileBuffers( hFile ) )
{
CloseHandle(hFile);
Fail("ERROR: Unable to flush the buffers\n");
}
if (err == FALSE)
{
Trace("ERROR: %u :unable to write to file handle "
"hFile=0x%lx\n",
GetLastError(),
hFile);
CloseHandle(hFile);
Fail("");
}
/* Create a unnamed file-mapping object with file handle FileHandle
* and with PAGE_READWRITE protection.
*/
hFileMapping = CreateFileMapping(
hFile,
NULL, /*not inherited*/
PAGE_READONLY, /*read and wite*/
0, /*high-order of object size*/
0, /*low-orger of object size*/
NULL); /*unnamed object*/
if(NULL == hFileMapping)
{
Trace("ERROR:%u: Failed to create File Mapping.\n",
GetLastError());
CloseHandle(hFile);
Fail("");
}
/* map a writeable view of a file to a read-only file map.
*/
lpMapViewAddress = MapViewOfFile(
hFileMapping,
FILE_MAP_WRITE, /* access code */
0, /* high order offset */
0, /* low order offset */
MAPPINGSIZE); /* number of bytes for map */
if(NULL != lpMapViewAddress)
{
Trace("ERROR:%u: Able to create a writeable MapViewOfFile"
" to a read-only file.\n",
GetLastError());
CloseHandle(hFile);
CloseHandle(hFileMapping);
UnmapViewOfFile(lpMapViewAddress);
Fail("");
}
/* map an all access view of a file to a read-only file map.
*/
lpMapViewAddress = MapViewOfFile(
hFileMapping,
FILE_MAP_ALL_ACCESS, /* access code */
0, /* high order offset */
0, /* low order offset */
MAPPINGSIZE); /* number of bytes for map */
if(NULL != lpMapViewAddress)
{
Trace("ERROR:%u: Able to create an all access MapViewOfFile"
" to a read-only file.\n",
GetLastError());
CloseHandle(hFile);
CloseHandle(hFileMapping);
UnmapViewOfFile(lpMapViewAddress);
Fail("");
}
/* map an copy view of a file to a read-only file map.
*/
lpMapViewAddress = MapViewOfFile(
hFileMapping,
FILE_MAP_COPY, /* access code */
0, /* high order offset */
0, /* low order offset */
MAPPINGSIZE); /* number of bytes for map */
if(NULL != lpMapViewAddress)
{
Trace("ERROR:%u: Able to create a copy access MapViewOfFile "
"to a read-only file.\n",
GetLastError());
CloseHandle(hFile);
CloseHandle(hFileMapping);
Fail("");
}
/* Clean-up and Teminate. */
CloseHandle(hFile);
CloseHandle(hFileMapping);
PAL_Terminate();
return PASS;
}
|
