mDNSWindows/DLLX/TXTRecord.cpp

/* -*- Mode: C; tab-width: 4 -*-
 *
 * Copyright (c) 2009 Apple Computer, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */



#include "stdafx.h"

#include "TXTRecord.h"

#include "StringServices.h"

#include <DebugServices.h>





// CTXTRecord





STDMETHODIMP CTXTRecord::SetValue(BSTR key, VARIANT value)

{

	std::string			keyUTF8;

	ByteArray			valueArray;

	BOOL				ok;

	DNSServiceErrorType	err;

	HRESULT				hr = S_OK;



	if ( !m_allocated )

	{

		TXTRecordCreate( &m_tref, 0, NULL );

		m_allocated = TRUE;

	}



	ok = BSTRToUTF8( key, keyUTF8 );

	require_action( ok, exit, hr = S_FALSE );



	ok = VariantToByteArray( &value, valueArray );

	require_action( ok, exit, hr = S_FALSE );



	err = TXTRecordSetValue( &m_tref, keyUTF8.c_str(), ( uint8_t ) valueArray.size(), &valueArray[ 0 ] );

	require_action( !err, exit, hr = S_FALSE );



exit:



	return hr;

}



STDMETHODIMP CTXTRecord::RemoveValue(BSTR key)

{

	HRESULT hr = S_OK;



	if ( m_allocated )

	{

		std::string			keyUTF8;

		BOOL				ok;

		DNSServiceErrorType	err;



		ok = BSTRToUTF8( key, keyUTF8 );

		require_action( ok, exit, hr = S_FALSE );



		err = TXTRecordRemoveValue( &m_tref, keyUTF8.c_str() );

		require_action( !err, exit, hr = S_FALSE );

	}



exit:



	return hr;

}



STDMETHODIMP CTXTRecord::ContainsKey(BSTR key, VARIANT_BOOL* retval)

{

	std::string keyUTF8;

	int			ret	= 0;

	HRESULT		err	= S_OK;



	if ( m_byteArray.size() > 0 )

	{

		BOOL ok;



		ok = BSTRToUTF8( key, keyUTF8 );

		require_action( ok, exit, err = S_FALSE );



		ret = TXTRecordContainsKey( ( uint16_t ) m_byteArray.size(), &m_byteArray[ 0 ], keyUTF8.c_str() );

	}



	*retval = ( ret ) ? VARIANT_TRUE : VARIANT_FALSE;



exit:



	return err;

}



STDMETHODIMP CTXTRecord::GetValueForKey(BSTR key, VARIANT* value)

{

	std::string		keyUTF8;

	const void	*	rawValue;

	uint8_t			rawValueLen;

	BOOL			ok	= TRUE;

	HRESULT			hr	= S_OK;



	VariantClear( value );



	if ( m_byteArray.size() > 0 )

	{

		ok = BSTRToUTF8( key, keyUTF8 );

		require_action( ok, exit, hr = S_FALSE );



		rawValue = TXTRecordGetValuePtr( ( uint16_t ) m_byteArray.size(), &m_byteArray[ 0 ], keyUTF8.c_str(), &rawValueLen );



		if ( rawValue )

		{

			ok = ByteArrayToVariant( rawValue, rawValueLen, value );

			require_action( ok, exit, hr = S_FALSE );

		}

	}



exit:



	return hr;

}



STDMETHODIMP CTXTRecord::GetCount(ULONG* count)

{

	*count = 0;



	if ( m_byteArray.size() > 0 )

	{

		*count = TXTRecordGetCount( ( uint16_t ) m_byteArray.size(), &m_byteArray[ 0 ] );

	}



	return S_OK;

}



STDMETHODIMP CTXTRecord::GetKeyAtIndex(ULONG index, BSTR* retval)

{

	char				keyBuf[ 64 ];

	uint8_t				rawValueLen;

	const void		*	rawValue;

	CComBSTR			temp;

	DNSServiceErrorType	err;

	BOOL				ok;

	HRESULT				hr = S_OK;



	err = TXTRecordGetItemAtIndex( ( uint16_t ) m_byteArray.size(), &m_byteArray[ 0 ], ( uint16_t ) index, sizeof( keyBuf ), keyBuf, &rawValueLen, &rawValue );

	require_action( !err, exit, hr = S_FALSE );



	ok = UTF8ToBSTR( keyBuf, temp );

	require_action( ok, exit, hr = S_FALSE );



	*retval = temp;



exit:



	return hr;

}



STDMETHODIMP CTXTRecord::GetValueAtIndex(ULONG index, VARIANT* retval)

{

	char				keyBuf[ 64 ];

	uint8_t				rawValueLen;

	const void		*	rawValue;

	CComBSTR			temp;

	DNSServiceErrorType	err;

	BOOL				ok;

	HRESULT				hr = S_OK;



	err = TXTRecordGetItemAtIndex( ( uint16_t ) m_byteArray.size(), &m_byteArray[ 0 ], ( uint16_t ) index, sizeof( keyBuf ), keyBuf, &rawValueLen, &rawValue );

	require_action( !err, exit, hr = S_FALSE );



	ok = ByteArrayToVariant( rawValue, rawValueLen, retval );

	require_action( ok, exit, hr = S_FALSE );



exit:



	return hr;

}





void

CTXTRecord::SetBytes

	(

	const unsigned char	*	bytes,

	uint16_t				len

	)

{

	check ( bytes != NULL );

	check( len );



	m_byteArray.reserve( len );

	m_byteArray.assign( bytes, bytes + len );

}