mirror of https://github.com/status-im/consul.git
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
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package agent
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import (
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"crypto/tls"
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"fmt"
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"net"
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"os"
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"time"
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)
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func ListenTCP(addr string) (net.Listener, error) {
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l, err := net.Listen("tcp", addr)
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if err != nil {
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return nil, err
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}
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l = tcpKeepAliveListener{l.(*net.TCPListener)}
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return l, nil
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}
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func ListenTLS(addr string, cfg *tls.Config) (net.Listener, error) {
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l, err := ListenTCP(addr)
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if err != nil {
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return nil, err
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}
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return tls.NewListener(l, cfg), nil
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}
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func ListenUnix(addr string, perm FilePermissions) (net.Listener, error) {
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// todo(fs): move this somewhere else
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// if _, err := os.Stat(addr); !os.IsNotExist(err) {
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// s.agent.logger.Printf("[WARN] agent: Replacing socket %q", addr)
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// }
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if err := os.Remove(addr); err != nil && !os.IsNotExist(err) {
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return nil, fmt.Errorf("error removing socket file: %s", err)
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}
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l, err := net.Listen("unix", addr)
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if err != nil {
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return nil, err
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}
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if err := setFilePermissions(addr, perm); err != nil {
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return nil, fmt.Errorf("Failed setting up HTTP socket: %s", err)
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}
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return l, nil
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}
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// tcpKeepAliveListener sets TCP keep-alive timeouts on accepted
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// connections. It's used by NewHttpServer so
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// dead TCP connections eventually go away.
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type tcpKeepAliveListener struct {
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*net.TCPListener
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}
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func (ln tcpKeepAliveListener) Accept() (c net.Conn, err error) {
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tc, err := ln.AcceptTCP()
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if err != nil {
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return
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}
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tc.SetKeepAlive(true)
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tc.SetKeepAlivePeriod(30 * time.Second)
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return tc, nil
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}
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