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
|
// 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: test9.c (DuplicateHandle)
**
** Purpose: Tests the PAL implementation of the DuplicateHandle function,
** with a handle from GetCurrentProcess. The test will create a
** process, duplicate it, then using ReadProcessMemory will
** read from the memory location of the CreateProcess process
** memory and the DuplicateHandle process memory. If the
** duplication is correct the memory will be the same for both.
**
**
**===================================================================*/
#include <palsuite.h>
int __cdecl main(int argc, char* argv[])
{
HANDLE hProcess;
HANDLE hDupProcess;
char lpBuffer[64];
char lpDupBuffer[64];
SIZE_T lpNumberOfBytesRead;
SIZE_T lpDupNumberOfBytesRead;
char lpTestBuffer[] = "abcdefghijklmnopqrstuvwxyz";
/* Initalize the PAL.
*/
if(0 != (PAL_Initialize(argc, argv)))
{
return FAIL;
}
/* Initalize the buffers.
*/
ZeroMemory( &lpBuffer, sizeof(lpBuffer) );
ZeroMemory( &lpDupBuffer, sizeof(lpDupBuffer) );
/* Get current proces, this will be duplicated.
*/
hProcess = GetCurrentProcess();
if(hProcess == NULL)
{
Fail("ERROR: Unable to get the current process\n");
}
/* Duplicate the current process handle.
*/
if (!(DuplicateHandle(GetCurrentProcess(), /* source handle process*/
hProcess, /* handle to duplicate*/
GetCurrentProcess(), /* target process handle*/
&hDupProcess, /* duplicate handle*/
(DWORD)0, /* requested access*/
FALSE, /* handle inheritance*/
DUPLICATE_SAME_ACCESS))) /* optional actions*/
{
Trace("ERROR:%u: Failed to create the duplicate handle"
" to hProcess=0x%lx",
GetLastError(),
hProcess);
CloseHandle(hProcess);
Fail("");
}
/* Get memory read of the current process.
*/
if ((ReadProcessMemory(hDupProcess, &lpTestBuffer,
lpDupBuffer, sizeof(lpDupBuffer), &lpDupNumberOfBytesRead)) == 0)
{
Trace("ERROR:%u: Unable to read the process memory of "
"hDupProcess=0x%lx.\n",
GetLastError(),
hDupProcess);
CloseHandle(hProcess);
CloseHandle(hDupProcess);
Fail("");
}
/* Get read memory of the created process.
*/
if ((ReadProcessMemory(hProcess, &lpTestBuffer,
lpBuffer, sizeof(lpBuffer), &lpNumberOfBytesRead)) == 0)
{
Trace("ERROR:%u: Unable to read the process memory of "
"hProcess=0x%lx.\n",
GetLastError(),
hProcess);
CloseHandle(hProcess);
CloseHandle(hDupProcess);
Fail("");
}
/* Compare the number of bytes that were read by each
* ReadProcessMemory.*/
if (lpDupNumberOfBytesRead != lpNumberOfBytesRead)
{
Trace("ERROR: ReadProcessMemory read different numbers of bytes "
"from duplicate process handles.\n");
CloseHandle(hProcess);
CloseHandle(hDupProcess);
Fail("");
}
/* Compare the two buffers to make sure they are equal.
*/
if ((strcmp(lpBuffer, lpDupBuffer)) != 0)
{
Trace("ERROR: ReadProcessMemory read different numbers of bytes "
"from duplicate process handles. hProcess read \"%s\" and "
"hDupProcess read \"%s\"\n",
lpBuffer,
lpDupBuffer);
CloseHandle(hProcess);
CloseHandle(hDupProcess);
Fail("");
}
/* Clean-up thread and Terminate the PAL.*/
CloseHandle(hProcess);
CloseHandle(hDupProcess);
PAL_Terminate();
return PASS;
}
|