can bus detection

Device/N2KsktCAN.cpp

@@ -20,6 +20,13 @@
 #include "N2KsktCAN.h"
 #include "N2KInterface.h"
 
+#ifdef __linux__
+#include <ifaddrs.h>
+#include <vector>
+#include <string>
+#include <iostream>
+#endif
+
 #ifdef HASNMEA2000
 namespace Device {
 
@@ -60,7 +67,24 @@ namespace Device {
 	}
 
 	void N2KSCAN::getDeviceList(std::vector<Description>& DeviceList) {
+		// 			DeviceList.push_back(Description(v, p, s, (uint64_t)i, Type::RTLSDR));
+		struct ifaddrs *ifaddr = nullptr, *ifa = nullptr;
+
+		if (getifaddrs(&ifaddr) == -1) {
+			return;
+		}
+
+		for (uint64_t i = 0, ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next, i++) {
+			if (ifa->ifa_addr == nullptr)
+				continue;
+
+			if (ifa->ifa_addr->sa_family == AF_CAN) {
+				DeviceList.push_back(Description(ifa->ifa_name, "", "", i, Type::N2KSCAN));
+				available_intefaces.push_back(ifa->ifa_name);
+			}
+		}
 
+		freeifaddrs(ifaddr);
 	}
 
 }