X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdynamic.cpp;h=3a6a151cb5d047db124b4caca75d1a8063c0a1bf;hb=e6601069038c35c546fd3f3dce95024b0d13f1b4;hp=8e63b7d03ee0729738a9a12cd677087cbad969be;hpb=a7f994a7ba6417041a5f865ae8ba1e22ebada66b;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/dynamic.cpp b/src/dynamic.cpp index 8e63b7d03..3a6a151cb 100644 --- a/src/dynamic.cpp +++ b/src/dynamic.cpp @@ -1,178 +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 "inspircd_io.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(char *fname) +DLLManager::DLLManager(const char *fname) { 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 -#ifdef IS_CYGWIN - // Cygwin behaviour is handled slightly differently - // With the advent of dynamic modules. Because Windows - // wont let you overwrite a file which is currently in - // Use, we can safely attempt to load the module from its - // Current location :) - h = dlopen(fname, RTLD_NOW ); - err = (char*)dlerror(); - -#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) + h = dlopen(fname, RTLD_NOW|RTLD_LOCAL); + if (!h) { - err = "Module file not found or cannot access, game over man!"; - return; - } - 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); - while (!feof(x)) - { - int n = fread(buffer, 1, 65535, x); - if (n) - write(fd,buffer,n); - } - - // Try to open the library now and get any error message. - - h = dlopen(tmpfile_template, RTLD_NOW ); - err = (char*)dlerror(); - close(fd); - // We can delete the tempfile once it's loaded, leaving just the inode. - if (!Config->debugging) - unlink(tmpfile_template); -#endif +#ifdef _WIN32 + RetrieveLastError(); +#else + err = dlerror(); #endif + } } DLLManager::~DLLManager() { -#ifndef STATIC_LINK - // close the library if it isn't null - if (h != 0) - dlclose(h); -#endif + /* close the library */ + if (h) + dlclose(h); } +union init_t { + void* vptr; + Module* (*fptr)(); +}; - -#ifdef STATIC_LINK - -bool DLLManager::GetSymbol(initfunc* &v, 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 + if (!h) + return NULL; -bool DLLManager::GetSymbol(void **v, char *sym_name) -{ - // try extract a symbol from the library - // get any error message is there is any - - if(h != 0) + init_t initfn; + initfn.vptr = dlsym(h, MODULE_INIT_STR); + if (!initfn.vptr) { - *v = dlsym( h, sym_name ); - err = (char*)dlerror(); - if( err == 0 ) - return true; - else - return false; - } - else - { - return false; - } -} - -#endif - -DLLFactoryBase::DLLFactoryBase(char *fname, char *factory) : DLLManager(fname) -{ - // try get the factory function if there is no error yet - - factory_func = 0; - - if(LastError() == 0) - { -#ifdef STATIC_LINK - GetSymbol( factory_func, factory ? factory : (char*)"init_module" ); +#ifdef _WIN32 + RetrieveLastError(); #else - GetSymbol( (void **)&factory_func, factory ? factory : (char*)"init_module" ); + 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"; +} -DLLFactoryBase::~DLLFactoryBase() +#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