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24 lines
618 B
Go
24 lines
618 B
Go
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// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !js && !wasm
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// +build !js,!wasm
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package magicsock
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import (
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"errors"
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"syscall"
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)
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// errHOSTUNREACH wraps unix.EHOSTUNREACH in an interface type to pass to
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// errors.Is while avoiding an allocation per call.
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var errHOSTUNREACH error = syscall.EHOSTUNREACH
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// isBadEndpointErr checks if err is one which is known to report that an
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// endpoint can no longer be sent to. It is not exhaustive, and for unknown
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// errors always reports false.
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func isBadEndpointErr(err error) bool {
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return errors.Is(err, errHOSTUNREACH)
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}
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