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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
// Server.cpp
// Interfaces to the cServer class encapsulating the entire "server"
#include "Globals.h"
#include "Server.h"
#include "Connection.h"
cServer::cServer(void)
{
}
int cServer::Init(short a_ListenPort, short a_ConnectPort)
{
m_ConnectPort = a_ConnectPort;
#ifdef _WIN32
WSAData wsa;
int res = WSAStartup(0x0202, &wsa);
if (res != 0)
{
printf("Cannot initialize WinSock: %d\n", res);
return res;
}
#endif // _WIN32
LOGINFO("Generating protocol encryption keypair...");
m_PrivateKey.Generate();
m_PublicKeyDER = m_PrivateKey.GetPubKeyDER();
m_ListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (m_ListenSocket < 0)
{
#ifdef _WIN32
int err = WSAGetLastError();
#else
int err = errno;
#endif
printf("Failed to create listener socket: %d\n", err);
return err;
}
sockaddr_in local;
memset(&local, 0, sizeof(local));
local.sin_family = AF_INET;
local.sin_addr.s_addr = 130; // INADDR_ANY; // All interfaces
local.sin_port = htons(a_ListenPort);
if (!bind(m_ListenSocket, (sockaddr *)&local, sizeof(local)))
{
#ifdef _WIN32
int err = WSAGetLastError();
#else
int err = errno;
#endif
printf("Failed to bind listener socket: %d\n", err);
return err;
}
if (listen(m_ListenSocket, 1) != 0)
{
#ifdef _WIN32
int err = WSAGetLastError();
#else
int err = errno;
#endif
printf("Failed to listen on socket: %d\n", err);
return err;
}
printf("Listening on port %d, connecting to localhost:%d\n", a_ListenPort, a_ConnectPort);
return 0;
}
void cServer::Run(void)
{
LOG("Server running.");
while (true)
{
sockaddr_in Addr;
memset(&Addr, 0, sizeof(Addr));
socklen_t AddrSize = sizeof(Addr);
SOCKET client = accept(m_ListenSocket, (sockaddr *)&Addr, &AddrSize);
if (client == INVALID_SOCKET)
{
printf("accept returned an error: %d; bailing out.\n", SocketError);
return;
}
LOGINFO("Client connected, proxying...");
cConnection Connection(client, *this);
Connection.Run();
LOGINFO("Client disconnected. Ready for another connection.");
}
}
|
