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/*
* Copyright (C) 2000, 2004, 2005 Free Software Foundation
*
* Author: Nikos Mavroyanopoulos
*
* 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,
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 + 1024);
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,
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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