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net/dns/resolver: fix func used as netaddr.IP in printf

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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2021-07-25 15:21:51 -07:00
parent d145c594ad
commit 064b916b1a
1 changed files with 5 additions and 3 deletions
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8
net/dns/resolver/forwarder.go
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@ -322,16 +322,18 @@ func (f *forwarder) sendDoH(ctx context.Context, urlBase string, c *http.Client,
// iOS and we want the number of pending DNS lookups to be bursty
// without too much associated goroutine/memory cost.
func (f *forwarder) send(ctx context.Context, txidOut txid, closeOnCtxDone *closePool, packet []byte, dst netaddr.IPPort) ([]byte, error) {
ip := dst.IP()
// Upgrade known DNS IPs to DoH (DNS-over-HTTPs).
if urlBase, dc, ok := f.getDoHClient(dst.IP()); ok {
if urlBase, dc, ok := f.getDoHClient(ip); ok {
res, err := f.sendDoH(ctx, urlBase, dc, packet)
if err == nil || ctx.Err() != nil {
return res, err
}
f.logf("DoH error from %v: %v", dst.IP, err)
f.logf("DoH error from %v: %v", ip, err)
}
ln, err := f.packetListener(dst.IP())
ln, err := f.packetListener(ip)
if err != nil {
return nil, err
}