first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 260 insertions, 0 deletions

diff --git a/source4/registry/reg_frontend.c b/source4/registry/reg_frontend.c
new file mode 100644
index 0000000000..a9dfb52f01
--- /dev/null
+++ b/source4/registry/reg_frontend.c
@@ -0,0 +1,260 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  RPC Pipe client / server routines
+ *  Copyright (C) Gerald Carter                     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.
+ */
+
+/* Implementation of registry frontend view functions. */
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_RPC_SRV
+
+extern REGISTRY_OPS printing_ops;
+extern REGISTRY_OPS regdb_ops;		/* these are the default */
+
+/* array of REGISTRY_HOOK's which are read into a tree for easy access */
+
+
+REGISTRY_HOOK reg_hooks[] = {
+  { KEY_PRINTING,   &printing_ops },
+  { NULL, NULL }
+};
+
+
+/***********************************************************************
+ Open the registry database and initialize the REGISTRY_HOOK cache
+ ***********************************************************************/
+ 
+BOOL init_registry( void )
+{
+	int i;
+	
+	if ( !init_registry_db() ) {
+		DEBUG(0,("init_registry: failed to initialize the registry tdb!\n"));
+		return False;
+	}
+		
+	/* build the cache tree of registry hooks */
+	
+	reghook_cache_init();
+	
+	for ( i=0; reg_hooks[i].keyname; i++ ) {
+		if ( !reghook_cache_add(&reg_hooks[i]) )
+			return False;
+	}
+
+	if ( DEBUGLEVEL >= 20 )
+		reghook_dump_cache(20);
+
+	return True;
+}
+
+
+
+
+/***********************************************************************
+ High level wrapper function for storing registry subkeys
+ ***********************************************************************/
+ 
+BOOL store_reg_keys( REGISTRY_KEY *key, REGSUBKEY_CTR *subkeys )
+{
+	if ( key->hook && key->hook->ops && key->hook->ops->store_subkeys_fn )
+		return key->hook->ops->store_subkeys_fn( key->name, subkeys );
+	else
+		return False;
+
+}
+
+/***********************************************************************
+ High level wrapper function for storing registry values
+ ***********************************************************************/
+ 
+BOOL store_reg_values( REGISTRY_KEY *key, REGVAL_CTR *val )
+{
+	if ( key->hook && key->hook->ops && key->hook->ops->store_values_fn )
+		return key->hook->ops->store_values_fn( key->name, val );
+	else
+		return False;
+}
+
+
+/***********************************************************************
+ High level wrapper function for enumerating registry subkeys
+ Initialize the TALLOC_CTX if necessary
+ ***********************************************************************/
+
+int fetch_reg_keys( REGISTRY_KEY *key, REGSUBKEY_CTR *subkey_ctr )
+{
+	int result = -1;
+	
+	if ( key->hook && key->hook->ops && key->hook->ops->subkey_fn )
+		result = key->hook->ops->subkey_fn( key->name, subkey_ctr );
+
+	return result;
+}
+
+/***********************************************************************
+ retreive a specific subkey specified by index.  Caller is 
+ responsible for freeing memory
+ ***********************************************************************/
+
+BOOL fetch_reg_keys_specific( REGISTRY_KEY *key, char** subkey, uint32 key_index )
+{
+	static REGSUBKEY_CTR ctr;
+	static pstring save_path;
+	static BOOL ctr_init = False;
+	char *s;
+	
+	*subkey = NULL;
+	
+	/* simple caching for performance; very basic heuristic */
+	
+	if ( !ctr_init ) {
+		DEBUG(8,("fetch_reg_keys_specific: Initializing cache of subkeys for [%s]\n", key->name));
+		ZERO_STRUCTP( &ctr );	
+		regsubkey_ctr_init( &ctr );
+		
+		pstrcpy( save_path, key->name );
+		
+		if ( fetch_reg_keys( key, &ctr) == -1 )
+			return False;
+			
+		ctr_init = True;
+	}
+	/* clear the cache when key_index == 0 or the path has changed */
+	else if ( !key_index || StrCaseCmp( save_path, key->name) ) {
+
+		DEBUG(8,("fetch_reg_keys_specific: Updating cache of subkeys for [%s]\n", key->name));
+		
+		regsubkey_ctr_destroy( &ctr );	
+		regsubkey_ctr_init( &ctr );
+		
+		pstrcpy( save_path, key->name );
+		
+		if ( fetch_reg_keys( key, &ctr) == -1 )
+			return False;
+	}
+	
+	if ( !(s = regsubkey_ctr_specific_key( &ctr, key_index )) )
+		return False;
+
+	*subkey = strdup( s );
+
+	return True;
+}
+
+
+/***********************************************************************
+ High level wrapper function for enumerating registry values
+ Initialize the TALLOC_CTX if necessary
+ ***********************************************************************/
+
+int fetch_reg_values( REGISTRY_KEY *key, REGVAL_CTR *val )
+{
+	int result = -1;
+	
+	if ( key->hook && key->hook->ops && key->hook->ops->value_fn )
+		result = key->hook->ops->value_fn( key->name, val );
+
+	return result;
+}
+
+
+/***********************************************************************
+ retreive a specific subkey specified by index.  Caller is 
+ responsible for freeing memory
+ ***********************************************************************/
+
+BOOL fetch_reg_values_specific( REGISTRY_KEY *key, REGISTRY_VALUE **val, uint32 val_index )
+{
+	static REGVAL_CTR 	ctr;
+	static pstring		save_path;
+	static BOOL		ctr_init = False;
+	REGISTRY_VALUE		*v;
+	
+	*val = NULL;
+	
+	/* simple caching for performance; very basic heuristic */
+	
+	if ( !ctr_init ) {
+		DEBUG(8,("fetch_reg_values_specific: Initializing cache of values for [%s]\n", key->name));
+
+		ZERO_STRUCTP( &ctr );	
+		regval_ctr_init( &ctr );
+		
+		pstrcpy( save_path, key->name );
+		
+		if ( fetch_reg_values( key, &ctr) == -1 )
+			return False;
+			
+		ctr_init = True;
+	}
+	/* clear the cache when val_index == 0 or the path has changed */
+	else if ( !val_index || StrCaseCmp(save_path, key->name) ) {
+
+		DEBUG(8,("fetch_reg_values_specific: Updating cache of values for [%s]\n", key->name));		
+		
+		regval_ctr_destroy( &ctr );	
+		regval_ctr_init( &ctr );
+		
+		pstrcpy( save_path, key->name );
+		
+		if ( fetch_reg_values( key, &ctr) == -1 )
+			return False;
+	}
+	
+	if ( !(v = regval_ctr_specific_value( &ctr, val_index )) )
+		return False;
+
+	*val = dup_registry_value( v );
+
+	return True;
+}
+
+/***********************************************************************
+ Utility function for splitting the base path of a registry path off
+ by setting base and new_path to the apprapriate offsets withing the
+ path.
+ 
+ WARNING!!  Does modify the original string!
+ ***********************************************************************/
+
+BOOL reg_split_path( char *path, char **base, char **new_path )
+{
+	char *p;
+	
+	*new_path = *base = NULL;
+	
+	if ( !path)
+		return False;
+	
+	*base = path;
+	
+	p = strchr( path, '\\' );
+	
+	if ( p ) {
+		*p = '\0';
+		*new_path = p+1;
+	}
+	
+	return True;
+}
+
+
+