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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: test1.c (filemapping_memmgt\getprocaddress\test1)
**
** Purpose: Positive test the GetProcAddress API.
** The first test calls GetProcAddress to retrieve the
** address of SimpleFunction inside testlib by its name,
** then calls the function and checks that it worked.
**
**
**===========================================================================*/
#include <palsuite.h>
typedef int (__stdcall *SIMPLEFUNCTION)(int);
/* SHLEXT is defined only for Unix variants */
#if defined(SHLEXT)
#define lpModuleName "testlib"SHLEXT
#else
#define lpModuleName "testlib.dll"
#endif
int __cdecl main(int argc, char *argv[])
{
int err;
HMODULE hModule;
SIMPLEFUNCTION procAddressByName;
#if WIN32
const char *FunctionName = "_SimpleFunction@4";
#else
const char *FunctionName = "SimpleFunction";
#endif
/* Initialize the PAL environment. */
if(0 != PAL_Initialize(argc, argv))
{
return FAIL;
}
/* load a module */
hModule = LoadLibrary(lpModuleName);
if(!hModule)
{
Fail("Unexpected error: "
"LoadLibrary(%s) failed.\n",
lpModuleName);
}
/*
* Test 1
*
* Get the address of a function
*/
procAddressByName = (SIMPLEFUNCTION) GetProcAddress(hModule,FunctionName);
if(!procAddressByName)
{
Trace("ERROR: Unable to get address of SimpleFunction by its name. "
"GetProcAddress returned NULL with error %d\n",
GetLastError());
/* Cleanup */
err = FreeLibrary(hModule);
if(0 == err)
{
Fail("Unexpected error: Failed to FreeLibrary %s\n",
lpModuleName);
}
Fail("");
}
/* Call the function to see that it really worked */
/* Simple function adds 1 to the argument passed */
if( 2 != ((procAddressByName)(1)))
{
Trace("ERROR: Problem calling the function by its address.\n");
/* Cleanup */
err = FreeLibrary(hModule);
if(0 == err)
{
Fail("Unexpected error: Failed to FreeLibrary %s\n",
lpModuleName);
}
Fail("");
}
/* Cleanup */
err = FreeLibrary(hModule);
if(0 == err)
{
Fail("Unexpected error: Failed to FreeLibrary %s\n",
lpModuleName);
}
PAL_Terminate();
return PASS;
}
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