Files
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

39 lines
813 B
C

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
int main (int argc, char *argv[])
{
int s, len, o, port = 6666;
char buf[512];
struct sockaddr_in addr;
socklen_t addr_len = sizeof addr;
if (argc > 1)
port = atoi (argv[1]);
s = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);
o = 1;
len = 4;
setsockopt (3, SOL_SOCKET, SO_REUSEADDR, &o, len);
addr.sin_family = AF_INET;
addr.sin_port = htons (port);
addr.sin_addr.s_addr = INADDR_ANY; /* receive broadcasts */
bind (s, (struct sockaddr *) &addr, sizeof addr);
for (;;) {
len = recvfrom (s, buf, sizeof buf, 0, (struct sockaddr *) &addr, &addr_len);
if (len < 0)
break;
if (write (1, buf, len) != len)
fprintf(stderr, "WARNING: serial characters dropped\n");
}
return 0;
}