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
|
/* DHT test
* A file with a main that runs our DHT for testing.
*
* Compile with: gcc -Wall -o test ../core/DHT.c DHT_test.c
*
* Command line arguments are the ip and port of a node
* EX: ./test 127.0.0.1 33445
*/
#include "../core/DHT.h"
//Sleep function (x = milliseconds)
#ifdef WIN32
#define c_sleep(x) Sleep(1*x)
#else
#include <unistd.h>
#define c_sleep(x) usleep(1000*x)
#endif
#define PORT 33445
int main(int argc, char *argv[])
{
#ifdef WIN32
WSADATA wsaData;
if(WSAStartup(MAKEWORD(2,2), &wsaData) != NO_ERROR)
{
return -1;
}
#endif
if (argc < 3) {
printf("usage %s ip port\n", argv[0]);
exit(0);
}
//initialize our socket
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
//Set socket nonblocking
#ifdef WIN32
//I think this works for windows
u_long mode = 1;
//ioctl(sock, FIONBIO, &mode);
ioctlsocket(sock, FIONBIO, &mode);
#else
fcntl(sock, F_SETFL, O_NONBLOCK, 1);
#endif
//Bind our socket to port PORT and address 0.0.0.0
ADDR addr = {.family = AF_INET, .ip.i = 0, .port = htons(PORT)};
bind(sock, (struct sockaddr*)&addr, sizeof(addr));
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
//bootstrap_ip_port.ip.c[0] = 127;
//bootstrap_ip_port.ip.c[1] = 0;
//bootstrap_ip_port.ip.c[2] = 0;
//bootstrap_ip_port.ip.c[3] = 1;
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
bootstrap(bootstrap_ip_port);
IP_Port ip_port;
char data[MAX_UDP_PACKET_SIZE];
uint32_t length;
uint32_t i;
while(1)
{
doDHT();
if(recievepacket(&ip_port, data, &length) != -1)
{
if(DHT_recvpacket(data, length, ip_port))
{
printf("UNHANDLED PACKET RECEIVED\nLENGTH:%u\nCONTENTS:\n", length);
printf("--------------------BEGIN-----------------------------\n");
for(i = 0; i < length; i++)
printf("%c",data[i]);
printf("\n--------------------END-----------------------------\n\n\n");
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
c_sleep(100);
}
#ifdef WIN32
WSACleanup();
#endif
return 0;
}
|