On Mon, Mar 8, 2010 at 12:08 PM, Elliott Slaughter < elliottslaugh...@gmail.com> wrote:
> On Mon, Mar 8, 2010 at 10:50 AM, R. Matthew Emerson <r...@clozure.com>wrote: > >> >> On Mar 7, 2010, at 2:36 PM, Elliott Slaughter wrote: >> >> > What I am actually trying to do is to search for other nodes on the >> local network which are also running my application. My idea was to >> construct one or more broadcast addresses, send UDP packets to each of them, >> and listen for responses. This may not be the best way to go about this (and >> suggestions would be appreciated), but if I choose this route, I would want >> to know the IP address of each of the interfaces together with its subnet >> mask. >> > >> > On 2010-03-07, at 07:20 , Elliott Slaughter wrote: >> > >> > if you really need this, you might look at the implementation for >> %get-ip-interfaces in clozure. >> > it uses getifaddrs in a fairly transparent manner, so, if you're >> unix-based, you should be ok with it. >> > >> > I need this to work on Windows and *nix, which is why I can't use IOlib >> or other Unix-based solutions. That said, Clozure does run on Windows, so >> hopefully the code you mentioned has already been ported. >> >> There's an internal function ccl::%get-ip-interfaces that's >> conditionalized for a bunch of platforms. I can't really recommend that you >> use it, of course, but it might be something to look at. >> > > I glanced over the source briefly, and might give porting it to CFFI a shot > when I can find some free time. > I've ported the code to CFFI, and tested on SBCL, CCL, ECL, and Allegro on Mac OS X, SBCL on Linux, and SBCL on Windows. The source code is available as a darcs repository at: http://common-lisp.net/~eslaughter/darcs/ip-interfaces/ The code is licensed under the LLGPL to maximize license compatibility with Clozure CL. -- Elliott Slaughter "Don't worry about what anybody else is going to do. The best way to predict the future is to invent it." - Alan Kay
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