This commit was manufactured by cvs2svn to create branch 'SAMBA_3_0'.(This used to be commit b741abd496621586040081c04674ae53cb5db47c)

1 files changed, 92 insertions, 0 deletions

diff --git a/source3/lib/module.c b/source3/lib/module.c
new file mode 100644
index 0000000000..6febe8a9f1
--- /dev/null
+++ b/source3/lib/module.c
@@ -0,0 +1,92 @@
+/* 
+   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;
+	NTSTATUS nt_status;
+	const char *error;
+
+	/* 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 = sys_dlopen(module_name, RTLD_LAZY);
+
+	if(!handle) {
+		DEBUG(0, ("Error loading module '%s': %s\n", module_name, sys_dlerror()));
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	init = sys_dlsym(handle, "init_module");
+
+	/* we must check sys_dlerror() to determine if it worked, because
+           sys_dlsym() can validly return NULL */
+	error = sys_dlerror();
+	if (error) {
+		DEBUG(0, ("Error trying to resolve symbol 'init_module' in %s: %s\n", module_name, error));
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	nt_status = init();
+
+	DEBUG(2, ("Module '%s' loaded\n", module_name));
+
+	return nt_status;
+}
+
+/* Load all modules in list and return number of 
+ * modules that has been successfully loaded */
+int smb_load_modules(const char **modules)
+{
+	int i;
+	int success = 0;
+
+	for(i = 0; modules[i]; i++){
+		if(NT_STATUS_IS_OK(smb_load_module(modules[i]))) {
+			success++;
+		}
+	}
+
+	DEBUG(2, ("%d modules successfully loaded\n", success));
+
+	return success;
+}
+
+#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;
+}
+
+int smb_load_modules(const char **modules)
+{
+	DEBUG(0,("This samba executable has not been build with plugin support"));
+	return -1;
+}
+
+#endif /* HAVE_DLOPEN */