X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdynamic.cpp;h=3a6a151cb5d047db124b4caca75d1a8063c0a1bf;hb=68211809ee3111bdc9609fbd46dc3c875fbb5ea6;hp=d38405d48f5507899091bb21732200a44ea98d78;hpb=923586e54c005780edcc5c427bb4698caf16bcf0;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/dynamic.cpp b/src/dynamic.cpp index d38405d48..3a6a151cb 100644 --- a/src/dynamic.cpp +++ b/src/dynamic.cpp @@ -1,207 +1,111 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * 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 + * Copyright (C) 2007 Oliver Lupton + * Copyright (C) 2007 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2003, 2006 Craig Edwards * - * --------------------------------------------------- + * 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 . */ -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 #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 -#include -#include - -extern ServerConfig* Config; - 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'; - log(DEBUG,"Loading core-compiled module '%s'",fname); - for (int j = 0; modsyms[j].name; j++) - { - log(DEBUG,"Check %s",modsyms[j].name); - if (!strcmp(modsyms[j].name,fname)) - { - 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; - } - log(DEBUG,"Opened module file %s",fname); - char tmpfile_template[255]; - char buffer[65536]; - snprintf(tmpfile_template, 255, "%s/inspircd_file.so.%d.XXXXXXXXXX",Config->TempDir,getpid()); - int fd = mkstemp(tmpfile_template); - if (fd == -1) - { - fclose(x); - err = strerror(errno); - return; - } - 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; - } - } - } - 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) { - log(DEBUG,"dlerror occured!"); - err = (char*)dlerror(); - return; - } - - log(DEBUG,"Finished loading '%s': %0x",tmpfile_template, h); - - // We can delete the tempfile once it's loaded, leaving just the inode. - if (!err && !Config->debugging) - { - 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 } +union init_t { + void* vptr; + Module* (*fptr)(); +}; - -#ifdef STATIC_LINK - -bool DLLManager::GetSymbol(initfunc* &v, const char *sym_name) +Module* DLLManager::CallInit() { - log(DEBUG,"Symbol search..."); - for (int j = 0; modsyms[j].name; j++) - { - if (!strcmp(this->staticname,modsyms[j].name)) - { - log(DEBUG,"Loading symbol..."); - v = modsyms[j].value; - err = 0; - return true; - } - } - err = "Module symbol missing from the core"; - return false; -} - -#else - -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) - { - log(DEBUG,"Found symbol %s", sym_name); - 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(const char* fname, const char* symbol) : DLLManager(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