conn: close old fd before trying again
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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@ -99,6 +99,7 @@ again:
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bind.ipv6, port, err = listenNet("udp6", port)
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if uport == 0 && err != nil && errors.Is(err, syscall.EADDRINUSE) && tries < 100 {
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bind.ipv4.Close()
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tries++
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goto again
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}
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@ -123,6 +123,7 @@ again:
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bind.sock4, newPort, err = create4(port)
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if err != nil {
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if originalPort == 0 && err == syscall.EADDRINUSE && tries < 100 {
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unix.Close(bind.sock6)
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tries++
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goto again
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}
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