Using the ether_ntoa function, we convert the binary MAC address to a human-readable string. The MAC address is returned to the ifr_hwaddr member of the ifreq structure. In the following code, we create a socket, initialize an ifreq structure with the name of the interface ( wlo1 in this case), and call the ioctl function. We can use the ioctl function with the SIOCGIFHWADDR request to retrieve the MAC address for a specified network interface on Linux. This tutorial explains how to get the MAC address on Linux using C++. Getting the MAC address of a network interface is useful in many situations, especially in network administration, security, diagnostics and device identification. A MAC (Media Access Control) address is a unique value assigned to a network interface card (NIC, also called network adapter) by the manufacturer to uniquely identify it.
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