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// 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;
}
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