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dns: return correct err in exchange

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This commit is contained in:
nadoo 2018-08-06 08:13:23 +08:00
parent b27f153426
commit 9c73e969ca
1 changed files with 2 additions and 1 deletions
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3
dns/client.go
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@ -113,9 +113,10 @@ func (c *Client) exchange(qname string, reqBytes []byte, preferTCP bool) (server
network = "udp"
}
var rc net.Conn
servers := c.GetServers(qname)
for _, server = range servers {
rc, err := dialer.Dial(network, server)
rc, err = dialer.Dial(network, server)
// TODO: support timeout setting for different upstream server
rc.SetDeadline(time.Now().Add(time.Duration(3) * time.Second))
if err != nil {