2 Unix SMB/CIFS implementation.
5 Copyright (C) Jelmer Vernooij 2002
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 int smb_load_module(const char *module_name)
28 init_module_function *init;
32 /* Always try to use LAZY symbol resolving; if the plugin has
33 * backwards compatibility, there might be symbols in the
34 * plugin referencing to old (removed) functions
36 handle = sys_dlopen(module_name, RTLD_LAZY);
39 DEBUG(0, ("Error loading module '%s': %s\n", module_name, sys_dlerror()));
43 init = sys_dlsym(handle, "init_module");
45 /* we must check sys_dlerror() to determine if it worked, because
46 sys_dlsym() can validly return NULL */
47 error = sys_dlerror();
49 DEBUG(0, ("Error trying to resolve symbol 'init_module' in %s: %s\n", module_name, error));
55 DEBUG(2, ("Module '%s' loaded\n", module_name));
60 /* Load all modules in list and return number of
61 * modules that has been successfully loaded */
62 int smb_load_modules(const char **modules)
67 for(i = 0; modules[i]; i++){
68 if(smb_load_module(modules[i])) {
73 DEBUG(2, ("%d modules successfully loaded\n", success));
78 int smb_probe_module(const char *subsystem, const char *module)
84 /* Check for absolute path */
85 if(module[0] == '/')return smb_load_module(module);
87 mem_ctx = talloc_init("smb_probe_module");
89 DEBUG(0,("No memory for loading modules\n"));
92 full_path = talloc_strdup(mem_ctx, lib_path(mem_ctx, subsystem));
93 full_path = talloc_asprintf(mem_ctx, "%s/%s.%s",
94 full_path, module, shlib_ext());
96 rc = smb_load_module(full_path);
97 talloc_destroy(mem_ctx);
101 #else /* HAVE_DLOPEN */
103 int smb_load_module(const char *module_name)
105 DEBUG(0,("This samba executable has not been built with plugin support"));
109 int smb_load_modules(const char **modules)
111 DEBUG(0,("This samba executable has not been built with plugin support"));
115 int smb_probe_module(const char *subsystem, const char *module)
117 DEBUG(0,("This samba executable has not been built with plugin support, not probing"));
121 #endif /* HAVE_DLOPEN */
123 void init_modules(void)
125 if(lp_preload_modules())
126 smb_load_modules(lp_preload_modules());
127 /* FIXME: load static modules */