Win32/Linux Dynamic Library Loader Class

/*
 * BCLoadLib.h - A WIN32/Linux runtime library loader.
 * Created April 17, 2006, by Michael 'Bigcheese' Spencer.
 */

#include "BCLoadLib.h"
#include <string.h>

BCLoadLib::BCLoadLib(char* libname){
	libhandle = 0;
	#ifdef WIN32
	libhandle = LoadLibrary(libname);
	#else
	// First we need to add ./ and end with .so.
	int len = strlen(libname);
	len += 6; // Add room for ./, .so, and null.
	char* name = new char[len];
	name[0] = 0;
	strcat(name, "./");
	strcat(name, libname);
	strcat(name, ".so");
	libhandle = dlopen(name, RTLD_LAZY);
	delete[] name;
	#endif

	if(!libhandle)
		throw("Library could not be loaded.");
};

BCLoadLib::~BCLoadLib(){
	if(libhandle){
		#ifdef WIN32
		FreeLibrary((HINSTANCE)libhandle);
		#else
		dlclose(libhandle);
		#endif
	}
};

void* BCLoadLib::getFunc(char* funcName){
	void* func = 0;
	if(libhandle){
		#ifdef WIN32
		func = GetProcAddress((HINSTANCE)libhandle, funcName);
		#else
		func = dlsym(libhandle, funcName);
		#endif
	}

	if(!func)
		throw("Function could not be loaded.");

	return func;
};