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pkg/tun/tun_bsd.go

Summary

Maintainability
A
3 hrs
Test Coverage

Function createTun has 71 lines of code (exceeds 50 allowed). Consider refactoring.
Open

func createTun(cfg Config) (conn net.Conn, itf *net.Interface, err error) {
    if cfg.Addr == "" && cfg.Addr6 == "" {
        err = fmt.Errorf("IPv4 address and IPv6 address can not be empty at same time")
        return
    }
Severity: Minor
Found in pkg/tun/tun_bsd.go - About 1 hr to fix

    Function createTun has 11 return statements (exceeds 4 allowed).
    Open

    func createTun(cfg Config) (conn net.Conn, itf *net.Interface, err error) {
    if cfg.Addr == "" && cfg.Addr6 == "" {
        err = fmt.Errorf("IPv4 address and IPv6 address can not be empty at same time")
        return
    }
    Severity: Major
    Found in pkg/tun/tun_bsd.go - About 1 hr to fix

      Function createTun has a Cognitive Complexity of 22 (exceeds 20 allowed). Consider refactoring.
      Open

      func createTun(cfg Config) (conn net.Conn, itf *net.Interface, err error) {
    if cfg.Addr == "" && cfg.Addr6 == "" {
        err = fmt.Errorf("IPv4 address and IPv6 address can not be empty at same time")
        return
    }
      Severity: Minor
      Found in pkg/tun/tun_bsd.go - About 35 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

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