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authorJelmer Vernooij <jelmer@samba.org>2002-10-30 11:52:36 +0000
committerJelmer Vernooij <jelmer@samba.org>2002-10-30 11:52:36 +0000
commit1f40ad5813679a979f110f4b5346abd2a7516b39 (patch)
tree3bdfbe9d08768ea426d732ca6e5062671c513d74 /source3/lib
parentd85f752d1e9b6ca4e75d6b2901df39a10df5b57b (diff)
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Add initial vesion of new module system
(This used to be commit b5d05d3ec6808465d27e15db2a9ff48804e2e78e)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/module.c63
1 files changed, 63 insertions, 0 deletions
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 */