X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdynamic.cpp;h=a6f758d33bfd437ff5dd8d3009dbb586fc01dd27;hb=4ce16000d3c7cdd46cbc84f608ec7c6d390d6817;hp=27662a3516bccbc704fec1655e83a6692c7e611b;hpb=46a39046196f55b52336e19662bb7bac85b731ac;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/dynamic.cpp b/src/dynamic.cpp
index 27662a351..a6f758d33 100644
--- a/src/dynamic.cpp
+++ b/src/dynamic.cpp
@@ -1,11 +1,15 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
- *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- *   Copyright (C) 2007 Oliver Lupton <oliverlupton@gmail.com>
+ *   Copyright (C) 2017-2019 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2014 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
  *   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>
+ *   Copyright (C) 2006, 2010 Craig Edwards <brain@inspircd.org>
  *
  * 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
@@ -22,9 +26,13 @@
 
 
 #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)
@@ -39,7 +47,7 @@ DLLManager::DLLManager(const char *fname)
 	h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
 	if (!h)
 	{
-		err = dlerror();
+		RetrieveLastError();
 	}
 }
 
@@ -50,34 +58,47 @@ DLLManager::~DLLManager()
 		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)
+	union
 	{
-		err = dlerror();
+		void* vptr;
+		Module* (*fptr)();
+	};
+
+	vptr = GetSymbol(MODULE_INIT_STR);
+	if (!vptr)
 		return NULL;
-	}
 
-	return (*initfn.fptr)();
+	return (*fptr)();
+}
+
+void* DLLManager::GetSymbol(const char* name)
+{
+	return h ? dlsym(h, name) : NULL;
 }
 
 std::string DLLManager::GetVersion()
 {
-	if (!h)
-		return "";
+	const char* srcver = static_cast<const char*>(GetSymbol("inspircd_src_version"));
+	return srcver ? srcver : "";
+}
+
+void DLLManager::RetrieveLastError()
+{
+#if defined _WIN32
+	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;
+#else
+	const char* errmsg = dlerror();
+	err = errmsg ? errmsg : "Unknown error";
+#endif
 
-	const char* srcver = (char*)dlsym(h, "inspircd_src_version");
-	if (srcver)
-		return srcver;
-	return "Unversioned module";
+	std::string::size_type p;
+	while ((p = err.find_last_of("\r\n")) != std::string::npos)
+		err.erase(p, 1);
 }