mirror of
https://github.com/aria2/aria2.git
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3505201f33
Rewritten SharedHandle. Now copy constructor taking raw pointer has keyword explicit and SharedHandle's default constructor initializes its internal obj to null, old implementation initializes it using obj's default constructor. To assign null, write SharedHandle<T> x(...); x.reset(); TODO: test/SharedHandleTest.cc needs more tests. * src/SharedHandle.h
131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "BtHandshakeMessage.h"
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#include "PeerMessageUtil.h"
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#include "Util.h"
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#include "BtConstants.h"
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#include <cstring>
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namespace aria2 {
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const unsigned char* BtHandshakeMessage::BT_PSTR = (const unsigned char*)"BitTorrent protocol";
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BtHandshakeMessage::BtHandshakeMessage() {
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init();
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}
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BtHandshakeMessage::BtHandshakeMessage(const unsigned char* infoHash,
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const unsigned char* peerId)
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{
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init();
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memcpy(this->infoHash, infoHash, INFO_HASH_LENGTH);
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memcpy(this->peerId, peerId, PEER_ID_LENGTH);
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}
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void BtHandshakeMessage::init() {
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msg = 0;
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this->pstrlen = 19;
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pstr = new unsigned char[PSTR_LENGTH];
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reserved = new unsigned char[RESERVED_LENGTH];
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infoHash = new unsigned char[INFO_HASH_LENGTH];
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peerId = new unsigned char[PEER_ID_LENGTH];
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memcpy(this->pstr, BT_PSTR, PSTR_LENGTH);
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memset(this->reserved, 0, RESERVED_LENGTH);
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// fast extension
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this->reserved[7] |= 0x04;
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// extended messaging
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this->reserved[5] |= 0x10;
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}
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SharedHandle<BtHandshakeMessage>
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BtHandshakeMessage::create(const unsigned char* data, size_t dataLength)
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{
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SharedHandle<BtHandshakeMessage> message(new BtHandshakeMessage());
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message->pstrlen = data[0];
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memcpy(message->pstr, &data[1], PSTR_LENGTH);
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memcpy(message->reserved, &data[20], RESERVED_LENGTH);
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memcpy(message->infoHash, &data[28], INFO_HASH_LENGTH);
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memcpy(message->peerId, &data[48], PEER_ID_LENGTH);
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return message;
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}
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const unsigned char* BtHandshakeMessage::getMessage() {
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if(!msg) {
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msg = new unsigned char[MESSAGE_LENGTH];
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msg[0] = pstrlen;
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memcpy(msg+1, pstr, PSTR_LENGTH);
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memcpy(msg+20, reserved, RESERVED_LENGTH);
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memcpy(msg+28, infoHash, INFO_HASH_LENGTH);
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memcpy(msg+48, peerId, PEER_ID_LENGTH);
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}
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return msg;
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}
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size_t BtHandshakeMessage::getMessageLength() {
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return MESSAGE_LENGTH;
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}
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std::string BtHandshakeMessage::toString() const {
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return "handshake peerId="+
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Util::urlencode(peerId, PEER_ID_LENGTH)+
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", reserved="+Util::toHex(reserved, RESERVED_LENGTH);
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}
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bool BtHandshakeMessage::isFastExtensionSupported() const {
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return reserved[7]&0x04;
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}
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bool BtHandshakeMessage::isExtendedMessagingEnabled() const
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{
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return reserved[5]&0x10;
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}
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bool BtHandshakeMessage::isDHTEnabled() const
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{
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return reserved[7]&0x01;
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}
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void BtHandshakeMessage::setInfoHash(const unsigned char* infoHash)
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{
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memcpy(this->infoHash, infoHash, INFO_HASH_LENGTH);
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}
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void BtHandshakeMessage::setPeerId(const unsigned char* peerId)
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{
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memcpy(this->peerId, peerId, PEER_ID_LENGTH);
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}
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} // namespace aria2
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