github.com/sagernet/sing-box@v1.9.0-rc.20/experimental/libbox/service_other.go (about)

     1  //go:build !windows
     2  
     3  package libbox
     4  
     5  import "syscall"
     6  
     7  func dup(fd int) (nfd int, err error) {
     8  	return syscall.Dup(fd)
     9  }