scanner.hpp

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#pragma once
 
#include <mutex>
#include <optional>
#include <vector>
 
#include "types.hpp"
 
namespace {
int constexpr TIMEOUT_MS{200}; 
}
 
class Scanner final {
  public:
    Scanner(ipaddr_t const &ip, std::vector<char const *> const &ports);
 
  public:
    [[nodiscard]] std::vector<std::pair<port_t, bool>> scan() const;
 
  public:
    static port_t constexpr MIN_PORT{}; 
 
    static port_t constexpr MAX_PORT{65535}; 
 
  private:
    ipaddr_t m_ip; 
 
    ports_t m_ports{};
 
    mutable std::mutex m_mtx{};
 
  private:
    [[nodiscard]] bool isIPv4(ipaddr_t const &ip) const noexcept;
 
    [[nodiscard]] bool isIPv6(ipaddr_t const &ip) const noexcept;
 
    [[nodiscard]] std::optional<port_t> parsePort(char const *str) const noexcept;
 
    [[nodiscard]] bool isPortAccessible(port_t const port) const;
};