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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: test.c
**
** Purpose: IsBadReadPtr() function
**
**
**=========================================================*/
#include <palsuite.h>
#define MEMORY_AMOUNT 16
int __cdecl main(int argc, char *argv[])
{
LPVOID TestingPointer = NULL;
BOOL ResultValue = 0;
/*
* Initialize the PAL and return FAILURE if this fails
*/
if(0 != (PAL_Initialize(argc, argv)))
{
return FAIL;
}
TestingPointer = malloc(MEMORY_AMOUNT);
if ( TestingPointer == NULL )
{
Fail("ERROR: Failed to allocate memory for TestingPointer pointer. "
"Can't properly exec test case without this.\n");
}
/* This should be readable, and return 0 */
ResultValue = IsBadReadPtr(TestingPointer,MEMORY_AMOUNT);
if(ResultValue != 0)
{
free(TestingPointer);
Fail("ERROR: The function returned %d instead of 0, when pointing "
"at readable memory.\n",ResultValue);
}
/* If we pass 0, the result should be 0 as well */
ResultValue = IsBadReadPtr(TestingPointer,0);
if(ResultValue != 0)
{
free(TestingPointer);
Fail("ERROR: The function returned %d instead of 0, when the "
"function was passed a range of 0 bytes.\n",ResultValue);
}
free(TestingPointer); /* we are done with this */
/* create a READABLE address */
TestingPointer = VirtualAlloc(
NULL, /* system selects address */
80, /* size of allocation*/
MEM_COMMIT, /* commit */
PAGE_READONLY); /* protection = read only */
if (TestingPointer == NULL )
{
Fail("ERROR: call to VirtualAlloc failed\n");
}
ResultValue = IsBadReadPtr(TestingPointer,16);
if(ResultValue != 0) /* if no access */
{
if(!VirtualFree(TestingPointer, 0, MEM_RELEASE))
{
Trace("ERROR: Call to VirtualFree failed with error"
" code[ %u ]\n",GetLastError());
}
Fail("ERROR: The function returned %d instead of 1 when checking "
"on unreadable memory.\n",ResultValue);
}
if(!VirtualFree(TestingPointer,0, MEM_RELEASE))
{
Fail("ERROR: Call to VirtualFree failed with error"
" code[ %u ]\n",GetLastError());
}
/* create an unreadable address */
TestingPointer = VirtualAlloc(
NULL, /* system selects address */
80, /* size of allocation */
MEM_COMMIT, /* commit */
PAGE_NOACCESS); /* protection = no access */
if (TestingPointer == NULL )
{
Fail("ERROR: call to VirtualAlloc failed\n");
}
ResultValue = IsBadReadPtr(TestingPointer,16);
if(ResultValue == 0) /* if access */
{
if(!VirtualFree(TestingPointer, 0, MEM_RELEASE))
{
Trace("ERROR: Call to VirtualFree failed with error"
" code[ %u ]\n",GetLastError());
}
Fail("ERROR: The function returned %d instead of 1 when checking "
"on unreadable memory.\n",ResultValue);
}
if(!VirtualFree(TestingPointer,0, MEM_RELEASE))
{
Fail("ERROR: Call to VirtualFree failed with error"
" code[ %u ]\n",GetLastError());
}
/* This should be unreadable and return 1 */
ResultValue = IsBadReadPtr(NULL,16);
if(ResultValue != 1)
{
Fail("ERROR: The function returned %d instead of 1 when checking "
"to see if NULL was readable.\n",ResultValue);
}
PAL_Terminate();
return PASS;
}
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