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fix timeout behavior

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This commit is contained in:
Andrey Meshkov 2018-12-27 11:05:11 +03:00
parent 227ce1fa8f
commit 673d093636
1 changed files with 4 additions and 2 deletions
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6
dnscrypt.go
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@ -57,7 +57,7 @@ const (
// Client contains parameters for a DNSCrypt client
type Client struct {
Proto string // Protocol ("udp" or "tcp"). Empty means "udp".
Timeout time.Duration // Timeout for read/write operations
Timeout time.Duration // Timeout for read/write operations (0 means infinite timeout)
AdjustPayloadSize bool // If true, the client will automatically add a EDNS0 RR that will advertise a larger buffer
}
@ -185,7 +185,9 @@ func (c *Client) ExchangeConn(m *dns.Msg, s *ServerInfo, conn net.Conn) (*dns.Ms
}
}
conn.SetDeadline(time.Now().Add(c.Timeout))
if c.Timeout > 0 {
conn.SetDeadline(time.Now().Add(c.Timeout))
}
conn.Write(encryptedQuery)
encryptedResponse := make([]byte, maxDNSPacketSize)