Date: Thu, 18 Jul 2002 12:15:15 -0700 From: Juli Mallett <jmallett@FreeBSD.org> To: Alex Rousskov <rousskov@measurement-factory.com> Cc: "Chuck T." <freebsdfan@hotmail.com>, net@FreeBSD.ORG Subject: Re: programatically list all local IP addresses ? Message-ID: <20020718121515.A95081@FreeBSD.org> In-Reply-To: <Pine.BSF.4.10.10207181253430.39461-100000@measurement-factory.com>; from rousskov@measurement-factory.com on Thu, Jul 18, 2002 at 12:59:58PM -0600 References: <F2731T9EDcrnbwM4nQd00019349@hotmail.com> <Pine.BSF.4.10.10207181253430.39461-100000@measurement-factory.com>
next in thread | previous in thread | raw e-mail | index | archive | help
* De: Alex Rousskov <rousskov@measurement-factory.com> [ Data: 2002-07-18 ] [ Subjecte: Re: programatically list all local IP addresses ? ] > On Thu, 18 Jul 2002, Chuck T. wrote: > > > Yes portablity is a concern, unfortunately my program will > > probably be used on Linux more than FreeBSD, sigh. I starting to > > read about ioctl() and SIOCGIFADDR which appears to be portable > > (and a pain). > > We had to write portable local address detection for Web Polygraph. In > my experience, ioctl/SIOCGIFADDR is not portable at all and is a lot > of pain. Linux uses them differently from FreeBSD, and the exact > interface/behavior is often OS-version specific (e.g., for Solaris > IIRC). > > Looking at existing code helps. I would suggest using getifaddrs(3) > where available (./configure can detect that, of course) and delve > into ioctl() and other OS-specific methods where getifaddrs(3) is not > supported. Stockpile some pain relieve medication first. Using a library which has these sorts of things abstracted helps. I believe this particular case is one covered by libnet or libdnet or whatever it's called. -- Juli Mallett <jmallett@FreeBSD.org> | FreeBSD: The Power To Serve Will break world for fulltime employment. | finger jmallett@FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020718121515.A95081>