-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * 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/>.
*/
-using namespace std;
-#include "inspircd_config.h"
-#include "configreader.h"
-#include "globals.h"
+#include "inspircd.h"
#include "dynamic.h"
-
-#ifndef STATIC_LINK
+#ifndef _WIN32
#include <dlfcn.h>
#else
-#include "modlist.h"
+#define dlopen(path, state) (void*)LoadLibraryA(path)
+#define dlsym(handle, export) (void*)GetProcAddress((HMODULE)handle, export)
+#define dlclose(handle) FreeLibrary((HMODULE)handle)
#endif
-#include "inspstring.h"
-#include "helperfuncs.h"
-#include "inspircd.h"
-#include <unistd.h>
-#include <sys/types.h>
-#include <stdio.h>
-
-DLLManager::DLLManager(InspIRCd* ServerInstance, const char *fname)
+DLLManager::DLLManager(const char *fname)
{
- err = NULL;
-
if (!strstr(fname,".so"))
{
err = "This doesn't look like a module file to me...";
+ h = NULL;
return;
}
-#ifdef STATIC_LINK
- this->staticname[0] = '\0';
- ServerInstance->Log(DEBUG,"Loading core-compiled module '%s'",fname);
- for (int j = 0; modsyms[j].name; j++)
- {
- ServerInstance->Log(DEBUG,"Check %s",modsyms[j].name);
- if (!strcmp(modsyms[j].name,fname))
- {
- ServerInstance->Log(DEBUG,"Found %s",fname);
- strlcpy(this->staticname,fname,1020);
- err = 0;
- return;
- }
- }
- err = "Module is not statically compiled into the ircd";
-#else
- // Copy the library to a temp location, this makes recompiles
- // a little safer if the ircd is running at the time as the
- // shared libraries are mmap()ed and not doing this causes
- // segfaults.
- FILE* x = fopen(fname,"rb");
- if (!x)
- {
- err = strerror(errno);
- return;
- }
- ServerInstance->Log(DEBUG,"Opened module file %s",fname);
- char tmpfile_template[255];
- char buffer[65536];
- snprintf(tmpfile_template, 255, "%s/inspircd_file.so.%d.XXXXXXXXXX",ServerInstance->Config->TempDir,getpid());
- int fd = mkstemp(tmpfile_template);
- if (fd == -1)
- {
- fclose(x);
- err = strerror(errno);
- return;
- }
- ServerInstance->Log(DEBUG,"Copying %s to %s",fname, tmpfile_template);
- while (!feof(x))
- {
- int n = fread(buffer, 1, 65535, x);
- if (n)
- {
- int written = write(fd,buffer,n);
- if (written != n)
- {
- fclose(x);
- err = strerror(errno);
- return;
- }
- }
- }
- ServerInstance->Log(DEBUG,"Copied entire file.");
- // Try to open the library now and get any error message.
-
- if (close(fd) == -1)
- err = strerror(errno);
- if (fclose(x) == EOF)
- err = strerror(errno);
h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
if (!h)
{
- ServerInstance->Log(DEBUG,"dlerror occured!");
- err = (char*)dlerror();
- return;
- }
-
- ServerInstance->Log(DEBUG,"Finished loading '%s': %0x",tmpfile_template, h);
-
- // We can delete the tempfile once it's loaded, leaving just the inode.
- if (!err && !ServerInstance->Config->debugging)
- {
- ServerInstance->Log(DEBUG,"Deleteting %s",tmpfile_template);
- if (unlink(tmpfile_template) == -1)
- err = strerror(errno);
- }
+#ifdef _WIN32
+ RetrieveLastError();
+#else
+ err = dlerror();
#endif
+ }
}
DLLManager::~DLLManager()
{
-#ifndef STATIC_LINK
- // close the library if it isn't null
+ /* close the library */
if (h)
dlclose(h);
-#endif
-}
-
-
-
-#ifdef STATIC_LINK
-
-bool DLLManager::GetSymbol(initfunc* &v, const char *sym_name)
-{
- for (int j = 0; modsyms[j].name; j++)
- {
- if (!strcmp(this->staticname,modsyms[j].name))
- {
- v = modsyms[j].value;
- err = 0;
- return true;
- }
- }
- err = "Module symbol missing from the core";
- return false;
}
-#else
+union init_t {
+ void* vptr;
+ Module* (*fptr)();
+};
-bool DLLManager::GetSymbol(void** v, const char* sym_name)
+Module* DLLManager::CallInit()
{
- // 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;
- }
-}
-
-#endif
+ if (!h)
+ return NULL;
-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())
+ init_t initfn;
+ initfn.vptr = dlsym(h, MODULE_INIT_STR);
+ if (!initfn.vptr)
{
-#ifdef STATIC_LINK
- if (!GetSymbol( factory_func, symbol ? symbol : "init_module"))
+#ifdef _WIN32
+ RetrieveLastError();
#else
- if (!GetSymbol( (void **)&factory_func, symbol ? symbol : "init_module"))
+ err = dlerror();
#endif
- {
- throw ModuleException("Missing init_module() entrypoint!");
- }
+ return NULL;
}
+
+ return (*initfn.fptr)();
}
-DLLFactoryBase::~DLLFactoryBase()
+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
projects / user / henk / code / inspircd.git / blobdiff