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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 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/>.
*/
#include "inspircd.h"
#include "dynamic.h"
#ifndef WIN32
#include <dlfcn.h>
#endif
DLLManager::DLLManager(const char *fname)
{
if (!strstr(fname,".so"))
{
err = "This doesn't look like a module file to me...";
h = NULL;
return;
}
h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
if (!h)
{
err = dlerror();
}
}
#ifdef VT_DEBUG
extern std::set<void*>* alloc_list;
static void check_list(void* h)
{
Dl_info info;
void* ifn = dlsym(h, MODULE_INIT_STR);
if (!ifn)
return;
if (!dladdr(ifn, &info))
return;
std::string soname = info.dli_fname;
for(std::set<void*>::iterator i = alloc_list->begin(); i != alloc_list->end(); i++)
{
void* vtable = *reinterpret_cast<void**>(*i);
if (dladdr(vtable, &info) && info.dli_fname == soname)
{
ServerInstance->Logs->Log("DLLMGR", DEBUG, "Object @%p remains with vtable %s+0x%lx <%p> in %s",
*i, info.dli_sname, (long)(vtable - info.dli_saddr), vtable, info.dli_fname);
}
}
}
#else
#define check_list(h) do {} while (0)
#endif
DLLManager::~DLLManager()
{
/* close the library */
if (h)
{
check_list(h);
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)
{
err = dlerror();
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";
}
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