sdk:scripts:udpserver [NetModule Router Wiki]

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====== SDK Script udpserver.are ======
<code c udpserver.are>
/* DESC: This script implements an UDP server which is able to receive messages.
 * Copyright (C) 2012-2016 NetModule AG, Switzerland
 */

void usage()
{
    printf("usage: udpserver.are <port>\n");
    exit(1);
}

if (argc < 2) {
    usage();
}

PORT = (int) argv[1];

sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (sock < 0) {
    nb_syslog("Unable to open socket");
    exit(1);
}

/* bind socket to 1st LAN interface */
addr = nb_ifc_address("LAN1");
ret = bind(sock, PORT, addr);
if(ret == -1) {
    nb_syslog("Unable to bind to port %d", PORT);
    close(sock);
    exit(1);
}

nb_syslog("Listening for messages on port %d", PORT);

while (1) {
    msg = recvmsg(sock, 3);
    if (is_void(msg)) continue;

    data = struct_get(msg, "data");
    from = struct_get(msg, "from");

    if (left(data, 4) == "quit") {
        nb_syslog("Received quit, terminating");
        break;
    } else if (data != "") {
        nb_syslog("Received message '%s' from %s", data, from);
    }
}

close(sock);
exit(0);

</code>

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====== SDK Script udpserver.are ======<code c udpserver.are>/* DESC: This script implements an UDP server which is able to receive messages. * Copyright (C) 2012-2016 NetModule AG, Switzerland */​void usage(){    printf("usage: udpserver.are <port>\n");    exit(1);}​if (argc < 2) {    usage();}​PORT = (int) argv[1];​sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);if (sock < 0) {    nb_syslog("Unable to open socket");    exit(1);}​/* bind socket to 1st LAN interface */addr = nb_ifc_address("LAN1");ret = bind(sock, PORT, addr);if(ret == -1) {

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