#include <u.h>
#include <libc.h>
#include <ip.h>

void
usage(void)
{
       fprint(2, "usage: %s [-x netmtpt]\n", argv0);
       exits("usage");
}

void
main(int argc, char **argv)
{
       int fd, cfd, n;
       char buf[4096], data[128], devdir[40], net[32];

       setnetmtpt(net, sizeof net, nil);

       ARGBEGIN{
       case 'x':
               setnetmtpt(net, sizeof net, EARGF(usage()));
               break;
       }ARGEND;

       sprint(data, "%s/udp!*!echo", net);
       cfd = announce(data, devdir);
       if(cfd < 0)
               sysfatal("can't announce %s: %r", data);
       if(fprint(cfd, "headers") < 0)
               sysfatal("can't set header mode: %r");

       sprint(data, "%s/data", devdir);
       fd = open(data, ORDWR);
       if(fd < 0)
               sysfatal("open %s: %r", data);
       while ((n = read(fd, buf, sizeof buf)) > 0)
               write(fd, buf, n);
       if (n < 0)
               sysfatal("error reading: %r");
       exits(0);
}

You are viewing proxied material from sdf.org. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.