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d35e2400b2
Allows to bind to an address even if it is not actually (yet or ever) configured. Fixes #238 Rationale: https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/#whatdoesthismeanformeadeveloper
28 lines
522 B
Go
28 lines
522 B
Go
package tcpsock
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import (
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"context"
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"net"
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"syscall"
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)
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func Listen(address string, tryFreeBind bool) (*net.TCPListener, error) {
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control := func(network, address string, c syscall.RawConn) error {
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if tryFreeBind {
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if err := freeBind(network, address, c); err != nil {
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return err
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}
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}
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return nil
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}
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var listenConfig = net.ListenConfig{
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Control: control,
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}
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l, err := listenConfig.Listen(context.Background(), "tcp", address)
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if err != nil {
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return nil, err
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}
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return l.(*net.TCPListener), nil
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}
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