mac-address

I am working on Ubuntu. How can I get MAC address of my machine or an interface say eth0 using C program. Charles Salvia You need to iterate over all the available interfaces on your machine, and use ioctl with SIOCGIFHWADDR flag to get the mac address. The mac address will be obtained as a 6-octet binary array. You also want to skip the loopback interface. #include <sys/ioctl.h> #include <net/if.h> #include <unistd.h> #include <netinet/in.h> #include <string.h> int main() { struct ifreq ifr; struct ifconf ifc; char buf[1024]; int success = 0; int sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP)

I need to obtain the MAC address of my android device using Java. I've searched online, but I haven't found anything useful. Konrad Reiche As was already pointed out in the comment, the MAC address can be received via the WifiManager . WifiManager manager = (WifiManager) getSystemService(Context.WIFI_SERVICE); WifiInfo info = manager.getConnectionInfo(); String address = info.getMacAddress(); Also do not forget to add the appropriate permissions into your AndroidManifest.xml <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/> Please refer to Android 6.0 Changes . To provide

I can use ip = InetAddress.getLocalHost(); NetworkInterface.getByInetAddress(ip); to obtain the mac address, but if I use this code in an offline machine it doesn't work. So, How can I get the Mac address? With Java 6+, you can use NetworkInterface.getHardwareAddress . Bear in mind that a computer can have no network cards, especially if it's embedded or virtual. It can also have more than one. You can get a list of all network cards with NetworkInterface.getNetworkInterfaces() . With all the possible solutions that i've found here and another replies, then i will contribute with my solution.