Date: Mon, 20 Oct 2003 10:57:12 -0700 From: Lars Eggert <larse@ISI.EDU> To: sarat chandra Annadata <saratchandra_a@yahoo.com> Cc: julian@elischer.org Subject: Re: Help Broadcasting a UDP packet on the LAN:URGENT Message-ID: <3F9421F8.7050101@isi.edu> In-Reply-To: <20031020174751.60464.qmail@web20805.mail.yahoo.com> References: <20031020174751.60464.qmail@web20805.mail.yahoo.com>
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This is a cryptographically signed message in MIME format. --------------ms020908000500030803050902 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit 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 --------------ms020908000500030803050902 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJtjCC AzgwggKhoAMCAQICEGZFcrfMdPXPY3ZFhNAukQEwDQYJKoZIhvcNAQEEBQAwgdExCzAJBgNV BAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEaMBgG A1UEChMRVGhhd3RlIENvbnN1bHRpbmcxKDAmBgNVBAsTH0NlcnRpZmljYXRpb24gU2Vydmlj ZXMgRGl2aXNpb24xJDAiBgNVBAMTG1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBDQTErMCkG 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