wvudpex.cc

/*
 * A WvUDP example.
 *
 * WvUDPStream example.  Waits for data on port 19.
 * Print something like:
 * udp<Info>: Local address is 0.0.0.0:33234 , and waits
 */
 
#include "wvistreamlist.h"
#include "wvlog.h"
#include "wvudp.h"
 
int main(int argc, char **argv)
{
    WvLog err("udp", WvLog::Error);
    WvIPPortAddr nothing;
    WvIPPortAddr remaddr(argc > 1 ? argv[1] : "127.0.0.1:19");
    WvUDPStream sock(nothing, nothing);
 
    sock.enable_broadcasts();
 
    err(WvLog::Info, "Local address is %s.\n", *sock.local());
 
    wvcon->autoforward(sock);
    sock.autoforward(err);
 
    WvIStreamList l;
    l.add_after(l.tail, wvcon, false);
    l.add_after(l.tail, &sock, false);
 
    while (wvcon->isok() && sock.isok())
    {
        sock.setdest(remaddr);
        if (l.select(1000))
        {
            if (wvcon->select(0))
                wvcon->callback();
            else if (sock.select(0))
            {
                sock.callback();
                err(WvLog::Info, "    (remote: %s)\n", *sock.src());
            }
        }
    }
 
    if (!wvcon->isok() && wvcon->geterr())
        err("stdin: %s\n", strerror(wvcon->geterr()));
    else if (!sock.isok() && sock.geterr())
        err("socket: %s\n", strerror(sock.geterr()));
 
    return 0;
}