Subversion Repositories planix.SVN

#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);
}