X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdynamic.cpp;h=9984f4dbeabe5c8873bdb91b2ecc6bb1382c1f1b;hb=1f3b7f2455b0d73d8874daff0459f4bde46b9524;hp=5d7759b4751761daefcff49ad083143db720867f;hpb=bab14f0dd2345c9d7dcbc47c918563709e1ac094;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/dynamic.cpp b/src/dynamic.cpp
index 5d7759b47..9984f4dbe 100644
--- a/src/dynamic.cpp
+++ b/src/dynamic.cpp
@@ -1 +1,111 @@
-/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
 * See: http://www.inspircd.org/wiki/index.php/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"
#include "configreader.h"
#include "dynamic.h"
#ifndef WIN32
#include <dlfcn.h>
#endif

DLLManager::DLLManager(InspIRCd* ServerInstance, const char *fname)
{
	err = NULL;

	if (!strstr(fname,".so"))
	{
		err = "This doesn't look like a module file to me...";
		return;
	}

	h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
	if (!h)
	{
		err = (char*)dlerror();
		return;
	}
}

DLLManager::~DLLManager()
{
	// close the library if it isn't null
	if (h)
		dlclose(h);
}



bool DLLManager::GetSymbol(void** v, const char* sym_name)
{
	// try extract a symbol from the library
	// get any error message is there is any
	
	if (h)
	{
		dlerror(); // clear value
		*v = dlsym(h, sym_name);
		err = (char*)dlerror();
		if (!*v || err)
			return false;
	}
	
	if (err)
	{
		return false;
	}
	else
	{	
		return true;
	}
}

DLLFactoryBase::DLLFactoryBase(InspIRCd* Instance, const char* fname, const char* symbol) : DLLManager(Instance, fname)
{
	// try get the factory function if there is no error yet
	factory_func = 0;
	
	if (!LastError())
	{
		if (!GetSymbol( (void **)&factory_func, symbol ? symbol : "init_module"))
		{
			throw ModuleException("Missing init_module() entrypoint!");
		}
	}
}

DLLFactoryBase::~DLLFactoryBase()
{
}

\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2007 Oliver Lupton <oliverlupton@gmail.com>
+ *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2003, 2006 Craig Edwards <craigedwards@brainbox.cc>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+
+#ifndef _WIN32
+#include <dlfcn.h>
+#else
+#define dlopen(path, state) (void*)LoadLibraryA(path)
+#define dlsym(handle, export) (void*)GetProcAddress((HMODULE)handle, export)
+#define dlclose(handle) FreeLibrary((HMODULE)handle)
+#endif
+
+DLLManager::DLLManager(const char *fname)
+{
+	if (!strstr(fname,".so"))
+	{
+		err = "This doesn't look like a module file to me...";
+		h = NULL;
+		return;
+	}
+
+	h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
+	if (!h)
+	{
+#ifdef _WIN32
+		RetrieveLastError();
+#else
+		err = dlerror();
+#endif
+	}
+}
+
+DLLManager::~DLLManager()
+{
+	/* close the library */
+	if (h)
+		dlclose(h);
+}
+
+union init_t {
+	void* vptr;
+	Module* (*fptr)();
+};
+
+Module* DLLManager::CallInit()
+{
+	if (!h)
+		return NULL;
+
+	init_t initfn;
+	initfn.vptr = dlsym(h, MODULE_INIT_STR);
+	if (!initfn.vptr)
+	{
+#ifdef _WIN32
+		RetrieveLastError();
+#else
+		err = dlerror();
+#endif
+		return NULL;
+	}
+
+	return (*initfn.fptr)();
+}
+
+std::string DLLManager::GetVersion()
+{
+	if (!h)
+		return "";
+
+	const char* srcver = (char*)dlsym(h, "inspircd_src_version");
+	if (srcver)
+		return srcver;
+	return "Unversioned module";
+}
+
+#ifdef _WIN32
+void DLLManager::RetrieveLastError()
+{
+	char errmsg[500];
+	DWORD dwErrorCode = GetLastError();
+	if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)errmsg, _countof(errmsg), NULL) == 0)
+		sprintf_s(errmsg, _countof(errmsg), "Error code: %u", dwErrorCode);
+	SetLastError(ERROR_SUCCESS);
+	err = errmsg;
+
+	std::string::size_type p;
+	while ((p = err.find_last_of("\r\n")) != std::string::npos)
+		err.erase(p, 1);
+}
+#endif