39 lines
932 B
Go
39 lines
932 B
Go
package dialer
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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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type controlFn = func(ctx context.Context, network, address string, c syscall.RawConn) error
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func addControlToListenConfig(lc *net.ListenConfig, fn controlFn) {
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llc := *lc
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lc.Control = func(network, address string, c syscall.RawConn) (err error) {
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switch {
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case llc.Control != nil:
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if err = llc.Control(network, address, c); err != nil {
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return
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}
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}
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return fn(context.Background(), network, address, c)
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}
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}
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func addControlToDialer(d *net.Dialer, fn controlFn) {
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ld := *d
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d.ControlContext = func(ctx context.Context, network, address string, c syscall.RawConn) (err error) {
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switch {
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case ld.ControlContext != nil:
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if err = ld.ControlContext(ctx, network, address, c); err != nil {
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return
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}
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case ld.Control != nil:
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if err = ld.Control(network, address, c); err != nil {
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return
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}
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}
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return fn(ctx, network, address, c)
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}
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}
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