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38 lines
937 B
Go
38 lines
937 B
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !windows
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package paths
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import (
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"fmt"
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"path/filepath"
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"golang.org/x/sys/unix"
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)
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func init() {
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stateFileFunc = stateFileUnix
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}
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func stateFileUnix() string {
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// TODO: use other default paths on other GOOSes probably. This works for Linux.
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const varLib = "/var/lib/tailscale/tailscaled.state"
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try := varLib
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for i := 0; i < 3; i++ { // check writability of the file, /var/lib/tailscale, and /var/lib
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err := unix.Access(try, unix.O_RDWR)
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println(fmt.Sprintf("Access(%q) = %v", try, err))
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if err == nil {
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return varLib
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}
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try = filepath.Dir(try)
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}
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// TODO: try some $HOME/.tailscale or XDG path? But will it
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// even work usefully enough as non-root? Probably not. Maybe
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// best to require it be explicit in that case.
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return ""
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}
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