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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2009 Sun Microsystems
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "drizzled/plugin.h"
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#include "drizzled/definitions.h"
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#include "drizzled/error.h"
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#include "drizzled/errmsg_print.h"
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#include "drizzled/module/library.h"
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module::Library::Library(const std::string &name_arg,
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const Manifest *manifest_arg)
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: name(name_arg), handle(handle_arg), manifest(manifest_arg)
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module::Library::~Library()
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* @TODO: This breaks valgrind at the moment.
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const string module::Library::getLibraryPath(const string &plugin_name)
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/* Compile dll path */
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dlpath.reserve(FN_REFLEN);
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dlpath.append(opt_plugin_dir);
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dlpath.append(plugin_name);
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dlpath.append("_plugin");
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#if defined(TARGET_OS_OSX)
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dlpath.append(".dylib");
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module::Library *module::Library::loadLibrary(const string &plugin_name, bool builtin)
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Ensure that the dll doesn't have a path.
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This is done to ensure that only approved libraries from the
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plugin directory are used (to make this even remotely secure).
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size_t found= plugin_name.find(FN_LIBCHAR);
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if (found != string::npos)
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errmsg_printf(ERRMSG_LVL_ERROR, "%s",ER(ER_PLUGIN_NO_PATHS));
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dlpath.assign("<builtin>");
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handle= dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
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const char *errmsg= dlerror();
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errmsg_printf(ERRMSG_LVL_ERROR, ER(ER_CANT_OPEN_LIBRARY),
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dlpath.c_str(), errno, errmsg);
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/* Open new dll handle */
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dlpath.assign(Library::getLibraryPath(plugin_name));
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handle= dlopen(dlpath.c_str(), RTLD_NOW|RTLD_GLOBAL);
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const char *errmsg= dlerror();
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uint32_t dlpathlen= dlpath.length();
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if (not dlpath.compare(0, dlpathlen, errmsg))
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{ // if errmsg starts from dlpath, trim this prefix.
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if (*errmsg == ':') errmsg++;
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if (*errmsg == ' ') errmsg++;
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errmsg_printf(ERRMSG_LVL_ERROR, ER(ER_CANT_OPEN_LIBRARY),
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dlpath.c_str(), errno, errmsg);
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// This, in theory, should cause dlerror() to deallocate the error
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// message. Found this via Google'ing :)
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string plugin_decl_sym("_drizzled_");
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plugin_decl_sym.append(plugin_name);
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plugin_decl_sym.append("_plugin_");
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/* Find plugin declarations */
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void *sym= dlsym(handle, plugin_decl_sym.c_str());
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const char* errmsg= dlerror();
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errmsg_printf(ERRMSG_LVL_ERROR, errmsg);
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errmsg_printf(ERRMSG_LVL_ERROR, ER(ER_CANT_FIND_DL_ENTRY),
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plugin_decl_sym.c_str(), dlpath.c_str());
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const Manifest *manifest= static_cast<module::Manifest *>(sym);
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if (manifest->drizzle_version != DRIZZLE_VERSION_ID)
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errmsg_printf(ERRMSG_LVL_ERROR,
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_("Plugin module %s was compiled for version %" PRIu64 ", "
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"which does not match the current running version of "
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"Drizzle: %" PRIu64"."),
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dlpath.c_str(), manifest->drizzle_version,
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return new (nothrow) module::Library(plugin_name, handle, manifest);
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} /* namespace drizzled */