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net/dns: rename impl to os.

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Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson 2021-04-02 19:40:13 -07:00 committed by Dave Anderson
parent c4530971db
commit 6a206fd0fb
1 changed files with 7 additions and 7 deletions

14
net/dns/manager.go

@ -27,7 +27,7 @@ const reconfigTimeout = time.Second
type Manager struct {
logf logger.Logf
impl OSConfigurator
os OSConfigurator
config OSConfig
}
@ -37,10 +37,10 @@ func NewManager(logf logger.Logf, oscfg OSConfigurator) *Manager {
logf = logger.WithPrefix(logf, "dns: ")
m := &Manager{
logf: logf,
impl: oscfg,
os: oscfg,
}
m.logf("using %T", m.impl)
m.logf("using %T", m.os)
return m
}
@ -52,7 +52,7 @@ func (m *Manager) Set(config OSConfig) error {
m.logf("Set: %+v", config)
if len(config.Nameservers) == 0 {
err := m.impl.Set(OSConfig{})
err := m.os.Set(OSConfig{})
// If we save the config, we will not retry next time. Only do this on success.
if err == nil {
m.config = config
@ -60,7 +60,7 @@ func (m *Manager) Set(config OSConfig) error {
return err
}
err := m.impl.Set(config)
err := m.os.Set(config)
// If we save the config, we will not retry next time. Only do this on success.
if err == nil {
m.config = config
@ -70,11 +70,11 @@ func (m *Manager) Set(config OSConfig) error {
}
func (m *Manager) Up() error {
return m.impl.Set(m.config)
return m.os.Set(m.config)
}
func (m *Manager) Down() error {
return m.impl.Close()
return m.os.Close()
}
// Cleanup restores the system DNS configuration to its original state