I’ve documented the family parameter to udp-open-socket and fleshed out the examples (including a daytime client/server pair). Hope this helps.
http://api.call-cc.org/doc/udp6 Jim > On Feb 17, 2015, at 03:56, Scott McCoid <mccoid.sc...@gmail.com> wrote: > > Hi Jim, > > This completely worked for me, thanks for the clear example! I didn't even > think to check if (udp-open-socket) also accepted extra arguments. > > Thanks again! > Scott > > On Tue, Feb 17, 2015 at 4:17 AM, Jim Ursetto <zbignie...@gmail.com > <mailto:zbignie...@gmail.com>> wrote: > Scott, > > This works on my system (10.10.2, CHICKEN 4.8.0.6). Note the undocumented > argument to udp-open-socket… not sure what I was thinking. > If this works for you, I will document the argument and add the example to > the wiki. > > > (use udp6) > > (define s (udp-open-socket 'inet6)) > (udp-bind! s "::" 1337) ;; unspecified address; accept both ipv4 and ipv6 > (let loop () > (receive (len str host port) (udp-recvfrom s 1024) > (print "received " len " bytes from [" host "]:" port " : " str)) > (loop)) > (udp-close-socket s) > > > ;; Then we can run netcats using IPv4 and IPv6: > > $ nc -6 -u localhost 1337 > hello > ^C > > $ nc -4 -u localhost 1337 > hi > ^C > > ;; And you should get the following output: > > received 6 bytes from [::1]:62028 : hello > received 3 bytes from [::ffff:127.0.0.1]:61031 : hi > > >> On Feb 16, 2015, at 07:06, Scott McCoid <mccoid.sc...@gmail.com >> <mailto:mccoid.sc...@gmail.com>> wrote: >> >> Hi Christian! >> >> Thanks for the quick help and netcat tip. I was able to send from my script >> and receive with netcat (for example: nc -u -6 -l 8000) without any >> problems. (sending to port 8000 in my script) >> >> I've tried doing the reverse situation, where I receive on the script side >> and send using netcat, but I haven't been able to get this to work. I don't >> have any errors, but I'm not receiving anything for some reason. >> >> I'll work on some chicken scripts that talk to each other and see if I can >> get this to work properly. >> >> Thanks again for your help! >> Scott >> >> On Mon, Feb 16, 2015 at 11:49 AM, Christian Kellermann <ck...@pestilenz.org >> <mailto:ck...@pestilenz.org>> wrote: >> Hi Scott! >> >> Scott McCnoid <mccoid.sc...@gmail.com <mailto:mccoid.sc...@gmail.com>> >> writes: >> >> > I'm reasonably new to chicken-scheme (and scheme in general), and I'm >> > having trouble with the udp6 (and likewise, socket) eggs. I'm trying to run >> > the example code, but the connection is always refused. >> > >> > *Error: (socket-receive!) cannot read from socket - Connection refused: >> > #<socket fd:4 af/inet sock/dgram>* >> > >> > I looked into the socket code and it seems that this is probably not the >> > fault of these eggs per se, but probably something I'm doing wrong. For >> > example, the *%socket-receive!* function makes a call to the <sys/socket.h> >> > *recv* function, which always returns -1. I've tried using other port >> > numbers to connect to, but this doesn't seem to make a difference. >> > >> > I'm on Mac OS *10.10.2* using chicken scheme v.* 4.9.0.1 *(stability/4.9.0) >> > (rev 8b3189b) >> > >> > I'm happy to help track this down if it's a bug, just let me know. >> >> The most likely reason is that on Mac OS X there is noone listening on >> port 13. >> >> You can check that manually with "nc localhost 13". >> >> The next problem is that noone is actually listening on ipv6 for that >> port. I ran into this when trying to simulate the datetime service with: >> >> "date | sudo nc -u -l -p 13" >> >> Connecting with v4 works, with v6 it doesn't. >> >> My suggestion is to test this with a known open service on your system >> or by creating a server explicitly bound to a v6 address. >> >> Please don't hesitate to report further issues and troubles! >> >> Kind regards, >> >> Christian >> >> -- >> May you be peaceful, may you live in safety, may you be free from >> suffering, and may you live with ease. >> >> >> _______________________________________________ >> Chicken-users mailing list >> Chicken-users@nongnu.org <mailto:Chicken-users@nongnu.org> >> https://lists.nongnu.org/mailman/listinfo/chicken-users >> <https://lists.nongnu.org/mailman/listinfo/chicken-users> >> >> _______________________________________________ >> Chicken-users mailing list >> Chicken-users@nongnu.org <mailto:Chicken-users@nongnu.org> >> https://lists.nongnu.org/mailman/listinfo/chicken-users >> <https://lists.nongnu.org/mailman/listinfo/chicken-users> > > > _______________________________________________ > Chicken-users mailing list > Chicken-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/chicken-users
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