mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 13:05:46 +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>
39 lines
875 B
Go
39 lines
875 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package dns
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"tailscale.com/types/logger"
|
|
)
|
|
|
|
func NewOSConfigurator(logf logger.Logf, _ string) (OSConfigurator, error) {
|
|
bs, err := os.ReadFile("/etc/resolv.conf")
|
|
if os.IsNotExist(err) {
|
|
return newDirectManager(logf), nil
|
|
}
|
|
if err != nil {
|
|
return nil, fmt.Errorf("reading /etc/resolv.conf: %w", err)
|
|
}
|
|
|
|
switch resolvOwner(bs) {
|
|
case "resolvconf":
|
|
switch resolvconfStyle() {
|
|
case "":
|
|
return newDirectManager(logf), nil
|
|
case "debian":
|
|
return newDebianResolvconfManager(logf)
|
|
case "openresolv":
|
|
return newOpenresolvManager()
|
|
default:
|
|
logf("[unexpected] got unknown flavor of resolvconf %q, falling back to direct manager", resolvconfStyle())
|
|
return newDirectManager(logf), nil
|
|
}
|
|
default:
|
|
return newDirectManager(logf), nil
|
|
}
|
|
}
|