UDP TCP port problem

[FaresH]

Hi,

I want to send ten integers from 0-9 from a server to a client.
Both sides have a tcp and udp sockets.
The even numbers, 0 included, will be sent thru the tcp.
The odd numbers will be sent thru the udp.

This is what I wrote but it gives me a bad address error by the recvfrom on the client side.

Client side

  
           struct sockaddr_in server ;
 
    server.sin_family = AF_INET;
        inet_aton(argv[1],&(server.sin_addr));
        server.sin_port = htons(atoi(argv[2]));
 
    printf("UDP: Server Socket\n");
    if( (udp_socket = socket (AF_INET,SOCK_DGRAM,0)) < 0 ){
        somethingIsWrong("UDP", SOCKERR);
    }
 
    printf("UDP: Connect\n");
    if ((connect(udp_socket, (struct sockaddr*)&server, sizeof(server))) < 0 ){
        somethingIsWrong("UDP", CONCTERR);
    }
 
    printf("TCP: Connect\n"); 
    if( (tcp_socket = tcp_connect(argv[1], atoi(argv[2]))) < 0 ){ 
        somethingIsWrong("TCP", SOCKERR); 
    }
 
    for( i=0 ; i < 10 ; i+=2 ){
        if( (cur_received= tcp_receive(tcp_socket, buf, BUFFSIZE, 0 )) < 0 ){ 
            somethingIsWrong("TCP", READERR); 
        }
        printf("TCP- %i ", atoi(&buf[0]));
        i++;
        if( (cur_received = recvfrom(udp_socket, &buf, sizeof(buf),0, 
                (struct sockaddr *)&server, (socklen_t *) sizeof(server))) < 0 ){
            somethingIsWrong("UDP", READERR); 
        }
        printf("UDP- %i ", atoi(&buf[0]));
    }
 
        printf("\n"); 
  

Server

  
        struct sockaddr_in server ;
    struct sockaddr_in client ;
 
    server.sin_family = AF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = htons(atoi(argv[2]));
 
    printf("Udp: Socket\n");
 
    if( (server_udp = socket (AF_INET,SOCK_DGRAM,0)) < 0){
        somethingIsWrong("UDP", SOCKERR);
    }
 
    printf("Bind UDP\n");
    if(bind (server_udp, (struct sockaddr*)&server, sizeof(server))==-1){
        somethingIsWrong("UDP", BINDERR);
    }
 
    printf("Establish tcp server\n");
        // tcp_establish creates socket, bind it to port=argv[1] and listens
    if( (server_tcp = tcp_establish(atoi(argv[1]), BACKLOG )) < 0 ){
        somethingIsWrong("TCP", SOCKERR);
    }
 
    printf("New Client\n");
        // accepts new clients
    if( (client_tcp = tcp_get_connection(server_tcp, NULL )) < 0 ){
        somethingIsWrong("TCP", ACCEPTERR);
    }
 
    for( i=0 ; i < 10 ; i++ ){
        printf("%i ", i);
        memcpy(buf, &i, sizeof(u_int));
        if( tcp_send(client_tcp, buf, sizeof(int), 0) < 0 ){ 
            somethingIsWrong("TCP", SENDERR); 
        }
        i++;
        memcpy(buf, &i, sizeof(u_int));
        printf("%i ", i);
        if( sendto(server_udp, buf, BUFFSIZE, 0, (struct sockaddr *) &client,  sizeof(client) ) < 0 ){ 
            somethingIsWrong("UDP", SENDERR); 
        }
    }    
 
    printf("\n"); 
  

Any idea how to solve this problem ?
Thanks.

[WuNMOjTIQanXWBcH]

The problem was obviously posted at least thrice and is already solved:

• UDP/TCP combination problem - LinuxQuestions.org
• UDP/TCP combination problem - Ubuntu Forums

[FaresH]

I will try and make admins delete them.