clash/common/sockopt/reuseaddr_linux.go

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package sockopt
import (
"net"
"syscall"
)
func UDPReuseaddr(c *net.UDPConn) (err error) {
rc, err := c.SyscallConn()
if err != nil {
return
}
rc.Control(func(fd uintptr) {
err = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
})
return
}