Created
March 28, 2013 10:30
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Получить MAC-адрес под Linux
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#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); | |
if (sock == -1) { /* handle error*/ }; | |
ifc.ifc_len = sizeof(buf); | |
ifc.ifc_buf = buf; | |
if (ioctl(sock, SIOCGIFCONF, &ifc) == -1) { /* handle error */ } | |
struct ifreq* it = ifc.ifc_req; | |
const struct ifreq* const end = it + (ifc.ifc_len / sizeof(struct ifreq)); | |
for (; it != end; ++it) { | |
strcpy(ifr.ifr_name, it->ifr_name); | |
if (ioctl(sock, SIOCGIFFLAGS, &ifr) == 0) { | |
if (! (ifr.ifr_flags & IFF_LOOPBACK)) { // don't count loopback | |
if (ioctl(sock, SIOCGIFHWADDR, &ifr) == 0) { | |
success = 1; | |
break; | |
} | |
} | |
} | |
else { /* handle error */ } | |
} | |
unsigned char mac_address[6]; | |
if (success) memcpy(mac_address, ifr.ifr_hwaddr.sa_data, 6); | |
} |
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