#8293: BNetworkAddress needs to check if there is an available IPv6 connection.
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Reporter: kallisti5 | Owner: axeld
Type: bug | Status: reopened
Priority: high | Milestone: R1/beta1
Component: Network & | Version: R1/Development
Internet/Stack | Keywords:
Resolution: | Blocking: 9269, 10033, 12173,
Blocked By: | 12174, 12186, 12188, 12233
Has a Patch: 1 | Platform: All
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Comment (by pulkomandy):
I remembered the missing bit: you need to set the AI_ADDRCONFIG flag for
the filtering to be enabled. Otherwise, you get the full reply from the
DNS server, witohut filtering. As specified in POSIX:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/freeaddrinfo.html
We do so in BNetworkAddressResolver: http://cgit.haiku-
os.org/haiku/tree/src/kits/network/libnetapi/NetworkAddressResolver.cpp#n163
All users of getaddrinfo need to be updated to use the flag when it makes
sense, however. That is almost always, unless:
- They don't plan to actually connect to the address (nslookup type of
application)
- They don't plan to us IPv4 or v6 addresses (looking for an MX record,
for example)
- They handle IPv6/v4 switch in their own way
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Ticket URL: <https://dev.haiku-os.org/ticket/8293#comment:37>
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