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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mira.net.au!vic.news.telstra.net!news.telstra.net!news-out.internetmci.com!dciteleport.com!feed1.news.erols.com!howland.erols.net!news.nacamar.de!nntp.uio.no!nntp-oslo.UNINETT.no!nntp-trd.UNINETT.no!not-for-mail From: sthaug@nethelp.no (Steinar Haug) Newsgroups: comp.unix.programmer,comp.unix.bsd.freebsd.misc Subject: Re: UDP Sockets sendto() failures Followup-To: comp.unix.programmer,comp.unix.bsd.freebsd.misc Date: 04 Jan 1997 11:34:54 GMT Organization: Nethelp Consulting, Trondheim, Norway Lines: 20 Message-ID: <5alf8u$rdp@verdi.nethelp.no> References: <E3DxuK.6I8@netplex-tech.com> <E3H7yK.18t@netplex-tech.com> NNTP-Posting-Host: aun.uninett.no In-reply-to: vikas@netplex-tech.Com's message of Sat, 4 Jan 1997 09:06:19 GMT Xref: euryale.cc.adfa.oz.au comp.unix.programmer:48354 comp.unix.bsd.freebsd.misc:33604 [Vikas Aggarwal] | Since a number of people have suggested that it is more likely that I | have a bug in my code, I am posting my code below. I think you do - a missing htons() for the port number. | send_udpmesg(buf, bufsize, dgramfd, host, port) . is called with port number in host order. | bzero(&dest_addr_in, sizeof(dest_addr_in)); | dest_addr_in.sin_family = AF_INET; | dest_addr_in.sin_addr.s_addr = inet_addr(desthost); | dest_addr_in.sin_port = port; . and here you stuff it into the sockaddr_in, still in host order. You need a htons() here. Steinar Haug, Nethelp consulting, sthaug@nethelp.no