Re: how to write a raw socket server using UDP
the 2 most common cause for sendto() failure on raw sockets are: - badly initialized IP header. note that ip_len and ip_off must be in host byte order. all other fields must be in net byte order. - badly initialized destination address. writing a raw socket server is not much different than other socket servers: s = socket(AF_INET, SOCK_RAW, 0); if (bind(s, ...) != 0) errx(...) while (1) recvfrom(s, ...) /* recv buffer contains a packet starting with IP header */ sourav das wrote: hello all, i m a new comer. i wrote a raw socket client using setsockopt (sock, IPPROTO_IP. IPHDRINCL, )using UDP. ihave followed MS_Press network programming . it is showing 19 bytes sent successfully. when trying to send more than 19 bytes using sendto(sock, ...) function , it is showing socket error on sending. i want to know how to write a raw socket server program so that to catch and display the data sent by the client. thanks a lot, keep fit, regards, spike. Be a better sports nut! Let your teams follow you with Yahoo Mobile. Try it now. http://mobile.yahoo.com/sports;_ylt=At9_qDKvtAbMuh1G1SQtBI7ntAcJ ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
how to write a raw socket server using UDP
hello all, i m a new comer. i wrote a raw socket client using setsockopt (sock, IPPROTO_IP. IPHDRINCL, )using UDP. ihave followed MS_Press network programming . it is showing 19 bytes sent successfully. when trying to send more than 19 bytes using sendto(sock, ...) function , it is showing socket error on sending. i want to know how to write a raw socket server program so that to catch and display the data sent by the client. thanks a lot, keep fit, regards, spike. Be a better sports nut! Let your teams follow you with Yahoo Mobile. Try it now. http://mobile.yahoo.com/sports;_ylt=At9_qDKvtAbMuh1G1SQtBI7ntAcJ ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to write a raw socket server using UDP
sourav das wrote: hello all, i m a new comer. i wrote a raw socket client using setsockopt (sock, IPPROTO_IP. IPHDRINCL, )using UDP. ihave followed MS_Press network programming . it is showing 19 bytes sent successfully. when trying to send more than 19 bytes using sendto(sock, ...) function , it is showing socket error on sending. i want to know how to write a raw socket server program so that to catch and display the data sent by the client. I don't think you can do it with the socket API, try using bpf or netgraph. signature.asc Description: OpenPGP digital signature
Re: how to write a raw socket server using UDP
Le Tuesday 27 November 2007, sourav das a écrit : hello all, i m a new comer. i wrote a raw socket client using setsockopt (sock, IPPROTO_IP. IPHDRINCL, )using UDP. ihave followed MS_Press network programming . it is showing 19 bytes sent is this the best reference you found ? a better text is Unix network programming by Stevens. the canonical program using raw socket is ping, and you can find its source in the FreeBSD src tree Happy reading TfH ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to write a raw socket server using UDP
On Tue, Nov 27, 2007 at 01:31:22AM -0800, sourav das wrote: i m a new comer. i wrote a raw socket client using setsockopt (sock, IPPROTO_IP. IPHDRINCL, )using UDP. ihave followed MS_Press network programming . it is showing 19 bytes sent successfully. when trying to send more than 19 bytes using sendto(sock, ...) function , it is I use net/libdnet for all my IP/UDP/TCP/etc packet creation requirements. Edwin -- Edwin Groothuis |Personal website: http://www.mavetju.org [EMAIL PROTECTED]| Weblog: http://www.mavetju.org/weblog/ ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
