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. 18.104.22.168 (stability/4.9.0) (rev 8b3189b)
I'm happy to help track this down if it's a bug, just let me know.
For reference I've tried this example as well as a simplified version using (udp-recv s 64):
(define s (udp-open-socket))
(udp-connect! s "localhost" 13) ; daytime service
(udp-send s "\n")
(receive (n data host port) (udp-recvfrom s 64)
(print n " bytes from " host ":" port ": " data))