Re: Help Broadcasting a UDP packet on the LAN:URGENT

From: Lars Eggert (larse_at_ISI.EDU)
Date: 10/20/03

  • Next message: FreeBSD bugmaster: "Current problem reports assigned to you" 
    Date: Mon, 20 Oct 2003 10:57:12 -0700
To: sarat chandra Annadata <saratchandra_a@yahoo.com>

    W. Richard Stevens
    UNIX Network Programming
    Prentice Hall

    sarat chandra Annadata wrote:

    > Hai,
    > I am need of some urgent techinical help to pull me out of a little problem. I have been
    > trying to broadcast a UDP packet(actually it is a DHCP offer packet) but
    > havent' successfully done it sofar. The following is the descripttion
    > about how I have been trying to do it.
    > 1) I am creating a socket with sock_dgram option.
    > 2)Next I am filling up the sockaddr_in structure, with IP address
    > 255.255.255.255 and port number as DHCP client port number.
    > 3)I am using the setsockopt call with at SOL_SOCKET level, with
    > SO_BROADCAST FLAG.
    > This call is not successfully returning.
    > moreover I am successfully setting the flag at the IP-level in either
    > case my send or sendto system calls fail.
    >
    > I want some guidance regarding this, I want to use only socket
    > interface, in UNIX with C.
    > Please pull me out of this, and I shall be grateful to you.
    > A working piece of code will be of great help
    > Thank you,
    >
    > Sincerely
    > Sarat Chandra.
    >
    >
    > ---------------------------------
    > Do you Yahoo!?
    > The New Yahoo! Shopping - with improved product search
    > _______________________________________________
    > freebsd-net@freebsd.org mailing list
    > http://lists.freebsd.org/mailman/listinfo/freebsd-net
    > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" 

    -- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

  • Next message: FreeBSD bugmaster: "Current problem reports assigned to you"

    Relevant Pages