blob: 74deebb6528b7deeb8bd681fbe30c2ae85d7a2e0 [file] [log] [blame]
wdenkeedcd072004-09-08 22:03:11 +00001#include <stdlib.h>
2#include <unistd.h>
3#include <sys/socket.h>
4#include <linux/in.h>
5
6int main (int argc, char *argv[])
7{
8 int s, len, o, port = 6666;
9 char buf[512];
10 struct sockaddr_in addr;
11 int addr_len = sizeof addr;
12
13 if (argc > 1)
14 port = atoi (argv[1]);
15
16 s = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);
17
18 o = 1;
19 len = 4;
20 setsockopt (3, SOL_SOCKET, SO_REUSEADDR, &o, len);
21
22 addr.sin_family = AF_INET;
23 addr.sin_port = htons (port);
24 addr.sin_addr.s_addr = INADDR_ANY; /* receive broadcasts */
25
26 bind (s, (struct sockaddr *) &addr, sizeof addr);
27
28 for (;;) {
29 len = recvfrom (s, buf, sizeof buf, 0, (struct sockaddr *) &addr, &addr_len);
30 if (len < 0)
31 break;
32 write (1, buf, len);
33 }
34
35 return 0;
36}