Problems with connecting to IPv6 only address

[torhve]

Trying to connect with

print(require"cqueues.socket".connect("ipv6.xt.gg", 80):connect())

gives result:

lua: /usr/local/share/lua/5.1/cqueues/socket.lua:263: socket:connect: The name does not resolve for the supplied parameters

ipv6.xt.gg only has AAAA record

[daurnimator]

replicated locally.

Now that I'm looking, the cause is obvious from the code in socket.c:

        if (!(S->socket = so_open(host, port, DNS_T_A, family, type, &opts, &error)))

The code only does a lookup for A records.

Solutions are probably related to wahern/dns#2 or #78

[wahern]

I'm working on adding better IPv6 in dns.c right now--specifically, fixing getaddrinfo-like API to resolve both IPv4 and IPv6, and then fixing up socket.c to make use of it. I'll try to get it out ASAP.

[wahern]

I've committed [upstream] dual-family IPv4/IPv6 support in the addrinfo iterator of the embedded dns.c library. Next step is to merge it downsteam into cqueues and fix how so_open and dns_ai_open are called internally.

[wahern]

This works for me in the latest release:

RUNLUA_S=regress/.local mk/runlua examples/simple.get "ipv6.xt.gg"

Note this is after running make check, where the runlua script can locate fresh modules under regress/.local.