1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "CompactPeerListProcessor.h"
#include "Data.h"
#include <netinet/in.h>
bool CompactPeerListProcessor::canHandle(const MetaEntry* peersEntry) const {
return dynamic_cast<const Data*>(peersEntry) != 0;
}
Peers CompactPeerListProcessor::extractPeer(const MetaEntry* peersEntry) {
Peers peers;
const Data* peersData = (const Data*)peersEntry;
if(peersData->getLen() > 0) {
for(int i = 0; i < peersData->getLen(); i += 6) {
unsigned int ipaddr1 = (unsigned char)*(peersData->getData()+i);
unsigned int ipaddr2 = (unsigned char)*(peersData->getData()+i+1);
unsigned int ipaddr3 = (unsigned char)*(peersData->getData()+i+2);
unsigned int ipaddr4 = (unsigned char)*(peersData->getData()+i+3);
unsigned int port = ntohs(*(unsigned short int*)(peersData->getData()+i+4));
char ipaddr[16];
snprintf(ipaddr, sizeof(ipaddr), "%d.%d.%d.%d",
ipaddr1, ipaddr2, ipaddr3, ipaddr4);
PeerHandle peer =
PeerHandle(new Peer(ipaddr, port, pieceLength, totalLength));
peers.push_back(peer);
}
}
return peers;
}
|
