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// Copyright (C) 2010 David Sugar, Tycho Softworks.
//
// This file is part of GNU uCommon C++.
//
// GNU uCommon C++ 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 3 of the License, or
// (at your option) any later version.
//
// GNU uCommon C++ 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 GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.
#include "local.h"
SSLBuffer::SSLBuffer(const TCPServer *tcp, secure::server_t scontext, size_t size) :
TCPBuffer(tcp, size)
{
ssl = context::session((context *)scontext);
bio = NULL;
server = true;
if(!is_open() || !ssl)
return;
gnutls_transport_set_ptr((SSL)ssl, (gnutls_transport_ptr_t) so);
int result = gnutls_handshake((SSL)ssl);
if(result >= 0)
bio = ssl;
}
SSLBuffer::SSLBuffer(secure::client_t scontext) :
TCPBuffer()
{
ssl = context::session((context *)scontext);
bio = NULL;
server = false;
}
SSLBuffer::~SSLBuffer()
{
release();
}
bool SSLBuffer::_pending(void)
{
return TCPBuffer::_pending();
}
void SSLBuffer::open(const char *host, const char *service, size_t size)
{
if(server) {
ioerr = EBADF;
return;
}
close();
TCPBuffer::open(host, service, size);
if(!is_open() || !ssl)
return;
gnutls_transport_set_ptr((SSL)ssl, (gnutls_transport_ptr_t) so);
int result = gnutls_handshake((SSL)ssl);
if(result >= 0)
bio = ssl;
}
void SSLBuffer::close(void)
{
if(server) {
ioerr = EBADF;
return;
}
if(bio)
gnutls_bye((SSL)ssl, GNUTLS_SHUT_RDWR);
bio = NULL;
TCPBuffer::close();
}
void SSLBuffer::release(void)
{
server = false;
close();
if(ssl) {
gnutls_deinit((SSL)ssl);
ssl = NULL;
}
}
bool SSLBuffer::_flush(void)
{
return TCPBuffer::_flush();
}
size_t SSLBuffer::_push(const char *address, size_t size)
{
if(!bio)
return TCPBuffer::_push(address, size);
int result = gnutls_record_send((SSL)ssl, address, size);
if(result < 0) {
result = 0;
ioerr = EIO;
}
return (size_t)result;
}
size_t SSLBuffer::_pull(char *address, size_t size)
{
if(!bio)
return TCPBuffer::_pull(address, size);
int result = gnutls_record_recv((SSL)ssl, address, size);
if(result < 0) {
result = 0;
ioerr = EIO;
}
return (size_t)result;
}
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