linux 真实mac地址,linux下获取mac地址

亦凉 2023-01-21 11:22 1阅读 0赞

在网上看到的程序，http://linux.die.net/man/7/netdevice

具体实现参考http://www.kegel.com/dkftpbench/dkftpbench-0.45/getifaddrs.c

char ifr\_name\[IFNAMSIZ\]; /\* Interface name \*/

union \{

struct sockaddr ifr\_addr;

struct sockaddr ifr\_dstaddr;

struct sockaddr ifr\_broadaddr;

struct sockaddr ifr\_netmask;

struct sockaddr ifr\_hwaddr;

short ifr\_flags;

int ifr\_ifindex;

int ifr\_metric;

int ifr\_mtu;

struct ifmap ifr\_map;

char ifr\_slave\[IFNAMSIZ\];

char ifr\_newname\[IFNAMSIZ\];

char \*ifr\_data;

\};

struct ifconf \{

int ifc\_len; /\* size of buffer \*/

union \{

char \*ifc\_buf; /\* buffer address \*/

struct ifreq \*ifc\_req; /\* array of structures \*/

\};

\}; ===================================================================================================================================================

\#include

int main(void)

char buf\[8192\] = \{0\};

struct ifconf ifc = \{0\};

struct ifreq \*ifr = NULL;

int sck = 0;

int nInterfaces = 0;

int i = 0;

char ip\[INET6\_ADDRSTRLEN\] = \{0\};

char macp\[19\];

struct ifreq \*item;

struct sockaddr \*addr;

/\* Get a socket handle. \*/

sck = socket(PF\_INET, SOCK\_DGRAM, 0);

if(sck < 0)

perror("socket");

return 1;

/\* Query available interfaces. \*/

ifc.ifc\_len = sizeof(buf);

ifc.ifc\_buf = buf;

if(ioctl(sck, SIOCGIFCONF, &ifc) < 0)

perror("ioctl(SIOCGIFCONF)");

return 1;

/\* Iterate through the list of interfaces. \*/

ifr = ifc.ifc\_req;

nInterfaces = ifc.ifc\_len / sizeof(struct ifreq);

for(i = 0; i < nInterfaces; i++)

//    item = &ifr\[i\];

item = &ifr\[i\];

addr = &(item->ifr\_addr);

/\* Get the IP address\*/

if(ioctl(sck, SIOCGIFADDR, item) < 0)

perror("ioctl(OSIOCGIFADDR)");

if (inet\_ntop(AF\_INET, &(((struct sockaddr\_in \*)addr)->sin\_addr), ip, sizeof ip) == NULL)

perror("inet\_ntop");

continue;

/\* Get the MAC address \*/

if(ioctl(sck, SIOCGIFHWADDR, item) < 0) \{

perror("ioctl(SIOCGIFHWADDR)");

return 1;

/\* display result \*/

sprintf(macp, " %02x:%02x:%02x:%02x:%02x:%02x",

(unsigned char)item->ifr\_hwaddr.sa\_data\[0\],

(unsigned char)item->ifr\_hwaddr.sa\_data\[1\],

(unsigned char)item->ifr\_hwaddr.sa\_data\[2\],

(unsigned char)item->ifr\_hwaddr.sa\_data\[3\],

(unsigned char)item->ifr\_hwaddr.sa\_data\[4\],

(unsigned char)item->ifr\_hwaddr.sa\_data\[5\]);

printf("%s\\t%s\\t%s\\n", item->ifr\_name, ip, macp);

return 0;

===========================================================================================================================================

SIOCGIFHWADDR,

SIOCSIFHWADDR

Get or set the hardware address of a device using

ifr\_hwaddr. The hardware address is specified in a struct

sockaddr.

sa\_family contains the ARPHRD\_\* device type,

sa\_data the L2 hardware address starting from byte 0. Setting the hardware address is a privileged operation.

linux 真实mac地址,linux下获取mac地址

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