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/*
* Copyright (C) 2000, 2004, 2005, 2007 Free Software Foundation
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GNUTLS.
*
* The GNUTLS library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA
*
*/
/* This file contains the functions which convert the TLS plaintext
* packet to TLS compressed packet.
*/
#include "gnutls_int.h"
#include "gnutls_compress.h"
#include "gnutls_errors.h"
#include "gnutls_compress_int.h"
/* These functions allocate the return value internally
*/
int
_gnutls_m_plaintext2compressed (gnutls_session_t session,
gnutls_datum_t * compressed,
const gnutls_datum_t * plaintext)
{
int size;
opaque *data;
size =
_gnutls_compress (session->connection_state.write_compression_state,
plaintext->data, plaintext->size, &data,
MAX_RECORD_SEND_SIZE + EXTRA_COMP_SIZE);
if (size < 0)
{
gnutls_assert ();
return GNUTLS_E_COMPRESSION_FAILED;
}
compressed->data = data;
compressed->size = size;
return 0;
}
int
_gnutls_m_compressed2plaintext (gnutls_session_t session,
gnutls_datum_t * plain,
const gnutls_datum_t * compressed)
{
int size;
opaque *data;
size =
_gnutls_decompress (session->connection_state.read_compression_state,
compressed->data, compressed->size, &data,
MAX_RECORD_RECV_SIZE);
if (size < 0)
{
gnutls_assert ();
return GNUTLS_E_DECOMPRESSION_FAILED;
}
plain->data = data;
plain->size = size;
return 0;
}
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