25 lines
313 B
Go
25 lines
313 B
Go
package main
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import (
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"golang.org/x/sys/unix"
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"net"
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)
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func setMark(conn *net.UDPConn, value int) error {
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if conn == nil || value == 0 {
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return nil
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}
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file, err := conn.File()
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if err != nil {
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return err
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}
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return unix.SetsockoptInt(
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int(file.Fd()),
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unix.SOL_SOCKET,
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unix.SO_MARK,
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value,
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)
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}
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