From 1f40ad5813679a979f110f4b5346abd2a7516b39 Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Wed, 30 Oct 2002 11:52:36 +0000 Subject: Add initial vesion of new module system (This used to be commit b5d05d3ec6808465d27e15db2a9ff48804e2e78e) --- source3/lib/module.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 source3/lib/module.c (limited to 'source3/lib/module.c') diff --git a/source3/lib/module.c b/source3/lib/module.c new file mode 100644 index 0000000000..e4d22e0bb7 --- /dev/null +++ b/source3/lib/module.c @@ -0,0 +1,63 @@ +/* + Unix SMB/CIFS implementation. + module loading system + + Copyright (C) Jelmer Vernooij 2002 + + This program 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; either version 2 of the License, or + (at your option) any later version. + + 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +#ifdef HAVE_DLOPEN +NTSTATUS smb_load_module(const char *module_name) +{ + void *handle; + init_module_function *init; + + /* Always try to use LAZY symbol resolving; if the plugin has + * backwards compatibility, there might be symbols in the + * plugin referencing to old (removed) functions + */ + handle = dlopen(module_name, RTLD_LAZY | RTLD_GLOBAL); + + if(!handle) { + DEBUG(0, ("Error loading module '%s': %s\n", module_name, sys_dlerror())); + return NT_STATUS_UNSUCCESSFUL; + } + + init = sys_dlsym(handle, "init_module"); + + if(!init) { + DEBUG(0, ("Error trying to resolve symbol 'init_module' in %s: %s\n", module_name, sys_dlerror())); + return NT_STATUS_UNSUCCESSFUL; + } + + init(); + + DEBUG(2, ("Module '%s' loaded\n", module_name)); + + return NT_STATUS_OK; +} + +#else /* HAVE_DLOPEN */ + +NTSTATUS smb_load_module(const char *module_name) +{ + DEBUG(0,("This samba executable has not been build with plugin support")); + return NT_STATUS_NOT_SUPPORTED; +} + +#endif /* HAVE_DLOPEN */ -- cgit