mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-30 05:25:35 +00:00
71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
26 lines
649 B
Go
26 lines
649 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
//go:build linux || freebsd || openbsd
|
|
|
|
package dns
|
|
|
|
import (
|
|
"os/exec"
|
|
)
|
|
|
|
func resolvconfStyle() string {
|
|
if _, err := exec.LookPath("resolvconf"); err != nil {
|
|
return ""
|
|
}
|
|
if _, err := exec.Command("resolvconf", "--version").CombinedOutput(); err != nil {
|
|
// Debian resolvconf doesn't understand --version, and
|
|
// exits with a specific error code.
|
|
if exitErr, ok := err.(*exec.ExitError); ok && exitErr.ExitCode() == 99 {
|
|
return "debian"
|
|
}
|
|
}
|
|
// Treat everything else as openresolv, by far the more popular implementation.
|
|
return "openresolv"
|
|
}
|