Merge pull request #1050 from Aviator45003/insp20

[user/henk/code/inspircd.git] / src / dynamic.cpp

diff --git a/src/dynamic.cpp b/src/dynamic.cpp
index b993b8af579d8d8026ec56b8e92d1aab0162ce96..3a6a151cb5d047db124b4caca75d1a8063c0a1bf 100644 (file)
--- a/src/dynamic.cpp
+++ b/src/dynamic.cpp
@@ -1,22 +1,34 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   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 program is free but copyrighted software; see
- *            the file COPYING for details.
+ * 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/>.
  */
 
-/* $Core */
 
 #include "inspircd.h"
 #include "dynamic.h"
-#ifndef WIN32
+#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)
@@ -28,10 +40,14 @@ DLLManager::DLLManager(const char *fname)
                return;
        }
 
-       h = dlopen(fname, RTLD_NOW|RTLD_LOCAL|RTLD_NODELETE);
+       h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
        if (!h)
        {
+#ifdef _WIN32
+               RetrieveLastError();
+#else
                err = dlerror();
+#endif
        }
 }
 
@@ -47,18 +63,49 @@ union init_t {
        Module* (*fptr)();
 };
 
-Module* DLLManager::callInit()
+Module* DLLManager::CallInit()
 {
        if (!h)
                return NULL;
 
        init_t initfn;
-       initfn.vptr = dlsym(h, "init_module");
+       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