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tailscale/net/dnscache
Peter Cai 4597ec1037 net/dnscache: Handle 4-in-6 addresses in DNS responses
On Android, the system resolver can return IPv4 addresses as IPv6-mapped
addresses (i.e. `::ffff:a.b.c.d`). After the switch to `net/netip`
(19008a3), this case is no longer handled and a response like this will
be seen as failure to resolve any IPv4 addresses.

Handle this case by simply calling `Unmap()` on the returned IPs. Fixes #5698.

Signed-off-by: Peter Cai <peter@typeblog.net>
2 years ago
..
dnscache.go net/dnscache: Handle 4-in-6 addresses in DNS responses 2 years ago
dnscache_test.go envknob: support changing envknobs post-init 2 years ago
messagecache.go all: fix spelling mistakes 2 years ago
messagecache_test.go all: use any instead of interface{} 3 years ago