LocaleBackend.cpp


/*
 * Copyright 2010, Oliver Tappe, zooey@hirschkaefer.de.
 * Distributed under the terms of the MIT License.
 */
 
 
#include "LocaleBackend.h"
 
#include <dlfcn.h>
#include <pthread.h>
#include <string.h>
 
 
namespace BPrivate {
namespace Libroot {
 
 
LocaleBackend* gLocaleBackend = NULL;
 
 
static LocaleDataBridge sLocaleDataBridge;
static pthread_once_t sBackendInitOnce = PTHREAD_ONCE_INIT;
 
 
static void
LoadBackend()
{
	void* imageHandle = dlopen("libroot-addon-icu.so", RTLD_LAZY);
	if (imageHandle == NULL)
		return;
 
	typedef LocaleBackend* (*symbolType)();
	symbolType createInstanceFunc
		= (symbolType)dlsym(imageHandle, "CreateInstance");
	if (createInstanceFunc == NULL) {
		dlclose(imageHandle);
		return;
	}
 
	gLocaleBackend = createInstanceFunc();
}
 
 
LocaleBackend::LocaleBackend()
{
}
 
 
LocaleBackend::~LocaleBackend()
{
}
 
 
status_t
LocaleBackend::LoadBackend()
{
	if (gLocaleBackend == NULL) {
		pthread_once(&sBackendInitOnce, &BPrivate::Libroot::LoadBackend);
		if (gLocaleBackend != NULL)
			gLocaleBackend->Initialize(&sLocaleDataBridge);
	}
 
	return gLocaleBackend != NULL ? B_OK : B_ERROR;
}
 
 
}	// namespace Libroot
}	// namespace BPrivate
↑ V575 The null pointer is passed into 'dlopen' function. Inspect the second argument.