added SO_BROADCAST support

diff --git a/datagram.c b/datagram.c
index 5f47a45..83c4bc8 100644 (file)
--- a/datagram.c
+++ b/datagram.c
@@ -41,6 +41,8 @@ int main(int argc, char *argv[]) {
     printf("can't open socket.\n");
     exit(1);
   }
+
+  // setsockopt(send_fd,SOL_SOCKET,SO_BROADCAST,
  
   memset(&local_addr,0,sizeof(local_addr));
   local_addr.sin_family=AF_INET;