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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:
**
** Purpose: Positive test the FreeLibrary API.
**
**
**============================================================*/
#include <palsuite.h>
/*char LibraryName[] = "dlltest";*/
/* SHLEXT is defined only for Unix variants */
#if defined(SHLEXT)
#define LibraryName "dlltest"SHLEXT
#else
#define LibraryName "dlltest"
#endif
BOOL PALAPI TestDll(HMODULE, int);
int __cdecl main(int argc, char *argv[])
{
HANDLE hLib;
/* Initialize the PAL. */
if ((PAL_Initialize(argc, argv)) != 0)
{
return (FAIL);
}
/*Load library (DLL). */
hLib = LoadLibrary(LibraryName);
if(hLib == NULL)
{
Fail("ERROR:%u:Unable to load library %s\n",
GetLastError(),
LibraryName);
}
/* Test access to DLL. */
if(!TestDll(hLib, PASS))
{
Trace("ERROR: TestDll function returned FALSE "
"expected TRUE\n.");
FreeLibrary(hLib);
Fail("");
}
/* Call the FreeLibrary API. */
if (!FreeLibrary(hLib))
{
Fail("ERROR:%u: Unable to free library \"%s\"\n",
GetLastError(),
LibraryName);
}
/* Test access to the free'd DLL. */
if(!TestDll(hLib, FAIL))
{
Fail("ERROR: TestDll function returned FALSE "
"expected TRUE\n.");
}
PAL_Terminate();
return PASS;
}
BOOL PALAPI TestDll(HMODULE hLib, int testResult)
{
int RetVal;
#if WIN32
char FunctName[] = "_DllTest@0";
#else
char FunctName[] = "DllTest";
#endif
FARPROC DllAddr;
/* Attempt to grab the proc address of the dll function.
* This one should succeed.*/
if(testResult == PASS)
{
DllAddr = GetProcAddress(hLib, FunctName);
if(DllAddr == NULL)
{
Trace("ERROR: Unable to load function \"%s\" library \"%s\"\n",
FunctName,
LibraryName);
return (FALSE);
}
/* Run the function in the DLL,
* to ensure that the DLL was loaded properly.*/
RetVal = DllAddr();
if (RetVal != 1)
{
Trace("ERROR: Unable to receive correct information from DLL! "
":expected \"1\", returned \"%d\"\n",
RetVal);
return (FALSE);
}
}
/* Attempt to grab the proc address of the dll function.
* This one should fail.*/
if(testResult == FAIL)
{
DllAddr = GetProcAddress(hLib, FunctName);
if(DllAddr != NULL)
{
Trace("ERROR: Able to load function \"%s\" from free'd"
" library \"%s\"\n",
FunctName,
LibraryName);
return (FALSE);
}
}
return (TRUE);
}
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