-

[my-code/ivac.git] / datagram.c

diff --git a/datagram.c b/datagram.c
index c288482..bcee943 100644 (file)
--- a/datagram.c
+++ b/datagram.c
@@ -31,7 +31,7 @@
 #include <fcntl.h>
 
 int main(int argc, char *argv[]) {
-  int send_fd;
+  int send_fd,broadcast_on;
   struct sockaddr_in local_addr, remote_addr;
   socklen_t remote_addr_len,optlen;
   int send_bytes, read_bytes;
@@ -47,8 +47,11 @@ int main(int argc, char *argv[]) {
     exit(1);
   }
 
-  optlen=1;
-  setsockopt(send_fd,SOL_SOCKET,SO_BROADCAST,NULL,optlen);
+  broadcast_on=1;
+  optlen=sizeof(broadcast_on);
+  if((setsockopt(send_fd,SOL_SOCKET,SO_BROADCAST,&broadcast_on,optlen))==-1)
+    perror("setsockopt");
+  
  
   memset(&local_addr,0,sizeof(local_addr));
   local_addr.sin_family=AF_INET;
@@ -78,6 +81,10 @@ int main(int argc, char *argv[]) {
     unsigned char buf[1000];
     read_bytes=read(0,buf,sizeof(buf));
     send_bytes=sendto(send_fd,buf,read_bytes,0,(struct sockaddr *)&remote_addr,remote_addr_len);
+#ifdef DEBUG
+    perror("sendto");
+#endif
+     
     fwrite(buf,read_bytes,1,cmd_fd);
   }