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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: loadlibrary.c (test 8)
**
** Purpose: Positive test the LoadLibrary API. Test will verify
** that it is unable to load the library twice. Once by
** using the full path name and secondly by using the
** short name.
**
**
**============================================================*/
#include <palsuite.h>
/*Define platform specific information*/
#if defined(SHLEXT)
#define LibraryName "dlltest"SHLEXT
#define GETATTACHCOUNTNAME "GetAttachCount"
#else
typedef int (*dllfunct)();
#define LibraryName "dlltest.dll"
#define GETATTACHCOUNTNAME "_GetAttachCount@0"
#endif
/* Helper function to test the loaded library.
*/
BOOL PALAPI TestDll(HMODULE hLib)
{
int RetVal;
char FunctName[] = GETATTACHCOUNTNAME;
FARPROC DllFunc;
/* Access a function from the loaded library.
*/
DllFunc = GetProcAddress(hLib, FunctName);
if(DllFunc == NULL)
{
Trace("ERROR: Unable to load function \"%s\" from library \"%s\"\n",
FunctName,
LibraryName);
return (FALSE);
}
/* Verify that the DLL_PROCESS_ATTACH is only
* accessed once.*/
RetVal = DllFunc();
if (RetVal != 1)
{
Trace("ERROR: Unable to receive correct information from DLL! "
":expected \"1\", returned \"%d\"\n",
RetVal);
return (FALSE);
}
return (TRUE);
}
int __cdecl main(int argc, char *argv[])
{
HANDLE hFullLib;
HANDLE hShortLib;
HANDLE hRelLib;
int iRetVal = FAIL;
char fullPath[_MAX_DIR];
char drive[_MAX_DRIVE];
char dir[_MAX_DIR];
char relTestDir[_MAX_DIR];
char fname[_MAX_FNAME];
char ext[_MAX_EXT];
BOOL bRc = FALSE;
char relLibPath[_MAX_DIR];
/* Initialize the PAL. */
if ((PAL_Initialize(argc, argv)) != 0)
{
return (FAIL);
}
/* Initalize the buffer.
*/
memset(fullPath, 0, _MAX_DIR);
/* Get the full path to the library (DLL).
*/
if (NULL != _fullpath(fullPath,argv[0],_MAX_DIR)) {
_splitpath(fullPath,drive,dir,fname,ext);
_makepath(fullPath,drive,dir,LibraryName,"");
} else {
Fail("ERROR: conversion from relative path \" %s \" to absolute path failed. _fullpath returned NULL\n",argv[0]);
}
/* Get relative path to the library
*/
_splitpath(argv[0], drive, relTestDir, fname, ext);
_makepath(relLibPath,drive,relTestDir,LibraryName,"");
/* Call Load library with the short name of
* the dll.
*/
hShortLib = LoadLibrary(LibraryName);
if(hShortLib == NULL)
{
Fail("ERROR:%u:Short:Unable to load library %s\n",
GetLastError(),
LibraryName);
}
/* Test the loaded library.
*/
if (!TestDll(hShortLib))
{
iRetVal = FAIL;
goto cleanUpOne;
}
/* Call Load library with the full name of
* the dll.
*/
hFullLib = LoadLibrary(fullPath);
if(hFullLib == NULL)
{
Trace("ERROR:%u:Full:Unable to load library %s\n",
GetLastError(),
fullPath);
iRetVal = FAIL;
goto cleanUpTwo;
}
/* Test the loaded library.
*/
if (!TestDll(hFullLib))
{
iRetVal = FAIL;
goto cleanUpTwo;
}
/*
** Call the load library with the relative path
** wrt to the directory ./testloadlibrary/..
** since we don't want to make any assumptions
** regarding the type of build
*/
hRelLib = LoadLibrary(relLibPath);
if(hRelLib == NULL)
{
Trace("ERROR:%u:Rel:Unable to load library at %s\n",
GetLastError(), relLibPath);
iRetVal = FAIL;
goto cleanUpTwo;
}
/* Test the loaded library.
*/
if (!TestDll(hRelLib))
{
iRetVal = FAIL;
goto cleanUpThree;
}
if( hRelLib != hFullLib )
{
Trace("Relative and Absolute Paths to libraries don't have same handle\n");
iRetVal = FAIL;
goto cleanUpThree;
}
if( hRelLib != hShortLib )
{
Trace("Relative and Short Paths to libraries don't have same handle\n");
iRetVal = FAIL;
goto cleanUpThree;
}
/* Test Succeeded.
*/
iRetVal = PASS;
cleanUpThree:
/* Call the FreeLibrary API.
*/
if (!FreeLibrary(hRelLib))
{
Trace("ERROR:%u: Unable to free library \"%s\"\n",
GetLastError(),
relLibPath);
iRetVal = FAIL;
}
cleanUpTwo:
/* Call the FreeLibrary API.
*/
if (!FreeLibrary(hFullLib))
{
Trace("ERROR:%u: Unable to free library \"%s\"\n",
GetLastError(),
fullPath);
iRetVal = FAIL;
}
cleanUpOne:
/* Call the FreeLibrary API.
*/
if (!FreeLibrary(hShortLib))
{
Trace("ERROR:%u: Unable to free library \"%s\"\n",
GetLastError(),
LibraryName);
iRetVal = FAIL;
}
/* Terminate the PAL.
*/
PAL_TerminateEx(iRetVal);
return iRetVal;
}
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