/*  *  Unix SMB/CIFS implementation. *  Virtual Windows Registry Layer *  Copyright (C) Gerald Carter                     2002-2005 * *  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/********************************************************************** Note that the REGSUB_CTR and REGVAL_CTR objects *must* be talloc()'d since the methods use the object pointer as the talloc context for  internal private data. There is no longer a regXXX_ctr_intit() and regXXX_ctr_destroy() pair of functions.  Simply TALLOC_ZERO_P() and TALLOC_FREE() the  object. **********************************************************************//*********************************************************************** Add a new key to the array **********************************************************************/int regsubkey_ctr_addkey( REGSUBKEY_CTR *ctr, const char *keyname ){	char **pp;	if ( !keyname )		return ctr->num_subkeys;	/* make sure the keyname is not already there */	if ( regsubkey_ctr_key_exists( ctr, keyname ) )		return ctr->num_subkeys;			/* allocate a space for the char* in the array */			if (  ctr->subkeys == 0 )		ctr->subkeys = TALLOC_P( ctr, char *);	else {		pp = TALLOC_REALLOC_ARRAY( ctr, ctr->subkeys, char *, ctr->num_subkeys+1);		if ( pp )			ctr->subkeys = pp;	}	/* allocate the string and save it in the array */		ctr->subkeys[ctr->num_subkeys] = talloc_strdup( ctr, keyname );	ctr->num_subkeys++;		return ctr->num_subkeys;}  /*********************************************************************** Add a new key to the array **********************************************************************/int regsubkey_ctr_delkey( REGSUBKEY_CTR *ctr, const char *keyname ){	int i;	if ( !keyname )		return ctr->num_subkeys;	/* make sure the keyname is actually already there */	for ( i=0; i<ctr->num_subkeys; i++ ) {		if ( strequal( ctr->subkeys[i], keyname ) )			break;	}		if ( i == ctr->num_subkeys )		return ctr->num_subkeys;	/* update if we have any keys left */	ctr->num_subkeys--;	if ( i < ctr->num_subkeys )		memmove( &ctr->subkeys[i], &ctr->subkeys[i+1], sizeof(char*) * (ctr->num_subkeys-i) );		return ctr->num_subkeys;}/*********************************************************************** Check for the existance of a key **********************************************************************/BOOL regsubkey_ctr_key_exists( REGSUBKEY_CTR *ctr, const char *keyname ){	int 	i;		for ( i=0; i<ctr->num_subkeys; i++ ) {		if ( strequal( ctr->subkeys[i],keyname ) )			return True;	}		return False;}/*********************************************************************** How many keys does the container hold ? **********************************************************************/int regsubkey_ctr_numkeys( REGSUBKEY_CTR *ctr ){	return ctr->num_subkeys;}/*********************************************************************** Retreive a specific key string **********************************************************************/char* regsubkey_ctr_specific_key( REGSUBKEY_CTR *ctr, uint32 key_index ){	if ( ! (key_index < ctr->num_subkeys) )		return NULL;			return ctr->subkeys[key_index];}/* * Utility functions for REGVAL_CTR *//*********************************************************************** How many keys does the container hold ? **********************************************************************/int regval_ctr_numvals( REGVAL_CTR *ctr ){	return ctr->num_values;}/*********************************************************************** allocate memory for and duplicate a REGISTRY_VALUE. This is malloc'd memory so the caller should free it when done **********************************************************************/REGISTRY_VALUE* dup_registry_value( REGISTRY_VALUE *val ){	REGISTRY_VALUE 	*copy = NULL;		if ( !val )		return NULL;		if ( !(copy = SMB_MALLOC_P( REGISTRY_VALUE)) ) {		DEBUG(0,("dup_registry_value: malloc() failed!\n"));		return NULL;	}		/* copy all the non-pointer initial data */		memcpy( copy, val, sizeof(REGISTRY_VALUE) );		copy->size = 0;	copy->data_p = NULL;		if ( val->data_p && val->size ) 	{		if ( !(copy->data_p = memdup( val->data_p, val->size )) ) {			DEBUG(0,("dup_registry_value: memdup() failed for [%d] bytes!\n",				val->size));			SAFE_FREE( copy );		}		copy->size = val->size;	}		return copy;	}/********************************************************************** free the memory allocated to a REGISTRY_VALUE  *********************************************************************/ void free_registry_value( REGISTRY_VALUE *val ){	if ( !val )		return;			SAFE_FREE( val->data_p );	SAFE_FREE( val );		return;}/********************************************************************** *********************************************************************/uint8* regval_data_p( REGISTRY_VALUE *val ){	return val->data_p;}/********************************************************************** *********************************************************************/uint32 regval_size( REGISTRY_VALUE *val ){	return val->size;}/********************************************************************** *********************************************************************/char* regval_name( REGISTRY_VALUE *val ){	return val->valuename;}/********************************************************************** *********************************************************************/uint32 regval_type( REGISTRY_VALUE *val ){	return val->type;}/*********************************************************************** Retreive a pointer to a specific value.  Caller shoud dup the structure since this memory will go away when the ctr is free()'d **********************************************************************/REGISTRY_VALUE* regval_ctr_specific_value( REGVAL_CTR *ctr, uint32 idx ){	if ( !(idx < ctr->num_values) )		return NULL;			return ctr->values[idx];}/*********************************************************************** Check for the existance of a value **********************************************************************/BOOL regval_ctr_key_exists( REGVAL_CTR *ctr, const char *value ){	int 	i;		for ( i=0; i<ctr->num_values; i++ ) {		if ( strequal( ctr->values[i]->valuename, value) )			return True;	}		return False;}/*********************************************************************** Add a new registry value to the array **********************************************************************/int regval_ctr_addvalue( REGVAL_CTR *ctr, const char *name, uint16 type,                          const char *data_p, size_t size ){	REGISTRY_VALUE **ppreg;		if ( !name )		return ctr->num_values;	/* Delete the current value (if it exists) and add the new one */	regval_ctr_delvalue( ctr, name );	/* allocate a slot in the array of pointers */			if (  ctr->num_values == 0 )		ctr->values = TALLOC_P( ctr, REGISTRY_VALUE *);	else {		ppreg = TALLOC_REALLOC_ARRAY( ctr, ctr->values, REGISTRY_VALUE *, ctr->num_values+1 );		if ( ppreg )			ctr->values = ppreg;	}	/* allocate a new value and store the pointer in the arrya */			ctr->values[ctr->num_values] = TALLOC_P( ctr, REGISTRY_VALUE);	/* init the value */		fstrcpy( ctr->values[ctr->num_values]->valuename, name );	ctr->values[ctr->num_values]->type = type;	ctr->values[ctr->num_values]->data_p = TALLOC_MEMDUP( ctr, data_p, size );	ctr->values[ctr->num_values]->size = size;	ctr->num_values++;	return ctr->num_values;}/*********************************************************************** Add a new registry value to the array **********************************************************************/int regval_ctr_copyvalue( REGVAL_CTR *ctr, REGISTRY_VALUE *val ){	REGISTRY_VALUE **ppreg;		if ( val )	{		/* allocate a slot in the array of pointers */				if (  ctr->num_values == 0 )			ctr->values = TALLOC_P( ctr, REGISTRY_VALUE *);		else {			ppreg = TALLOC_REALLOC_ARRAY( ctr, ctr->values, REGISTRY_VALUE *, ctr->num_values+1 );			if ( ppreg )				ctr->values = ppreg;		}		/* allocate a new value and store the pointer in the arrya */				ctr->values[ctr->num_values] = TALLOC_P( ctr, REGISTRY_VALUE);		/* init the value */			fstrcpy( ctr->values[ctr->num_values]->valuename, val->valuename );		ctr->values[ctr->num_values]->type = val->type;		ctr->values[ctr->num_values]->data_p = TALLOC_MEMDUP( ctr, val->data_p, val->size );		ctr->values[ctr->num_values]->size = val->size;		ctr->num_values++;	}	return ctr->num_values;}/*********************************************************************** Delete a single value from the registry container. No need to free memory since it is talloc'd. **********************************************************************/int regval_ctr_delvalue( REGVAL_CTR *ctr, const char *name ){	int 	i;		for ( i=0; i<ctr->num_values; i++ ) {		if ( strequal( ctr->values[i]->valuename, name ) )			break;	}		/* just return if we don't find it */		if ( i == ctr->num_values )		return ctr->num_values;		/* If 'i' was not the last element, just shift everything down one */	ctr->num_values--;	if ( i < ctr->num_values )		memmove( &ctr->values[i], &ctr->values[i+1], sizeof(REGISTRY_VALUE*)*(ctr->num_values-i) );		return ctr->num_values;}/*********************************************************************** Retrieve single value from the registry container. No need to free memory since it is talloc'd. **********************************************************************/REGISTRY_VALUE* regval_ctr_getvalue( REGVAL_CTR *ctr, const char *name ){	int 	i;		/* search for the value */		for ( i=0; i<ctr->num_values; i++ ) {		if ( strequal( ctr->values[i]->valuename, name ) )			return ctr->values[i];	}		return NULL;}/*********************************************************************** return the data_p as a uint32 **********************************************************************/uint32 regval_dword( REGISTRY_VALUE *val ){	uint32 data;		data = IVAL( regval_data_p(val), 0 );		return data;}/*********************************************************************** return the data_p as a character string **********************************************************************/char* regval_sz( REGISTRY_VALUE *val ){	static pstring data;	rpcstr_pull( data, regval_data_p(val), sizeof(data), regval_size(val), 0 );		return data;}