functions.hpp

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#ifndef IV_SRC_COMMS_IP_FUNCTIONS_HPP_
#define IV_SRC_COMMS_IP_FUNCTIONS_HPP_
 
#include <algorithm>
#include <set>
#include <string>
#include <vector>
 
namespace iv::comms::ip
{
 
bool isAllowedIP(const std::string &sourceIp, const std::set<std::string> &allowedIPs)
{
    static const std::vector<std::string> exceptions {"127.0.0.255", "127.0.0.1", "localhost", "::1", "0.0.0.0"};
    static const auto findIp = [sourceIp](const std::string &ip) { return ip == sourceIp; };
    return std::ranges::any_of(exceptions, findIp) || std::ranges::any_of(allowedIPs, findIp);
}
 
void showLANMessage(uint32_t timestamp, uint32_t msgId, const uint8_t *bytes)
{
#ifndef NDEBUG
    char *chrEnv = getenv("SHOW_LAN_MESSAGE");
 
    if (chrEnv != nullptr && strcmp(chrEnv, "1") == 0)
    {
        printf(">>>>> LAN >>>>>   Time: %10u, ID: %08X, ", timestamp, msgId);
        printf("Data: ");
 
        for (int32_t bIndex = 0; bIndex < 8; bIndex++)
        {
            printf("%02X ", bytes[bIndex]);
        }
 
        printf("\n");
    }
#endif
}
}// namespace iv::comms::ip
 
#endif//IV_SRC_COMMS_IP_FUNCTIONS_HPP_