如何通过C的方式在android NDK下面查找本机的mac地址

发布网友发布时间：2022-04-27 13:01

共1个回答

热心网友时间：2022-04-27 14:31

bool GetMac(char *pBuffer)
{
struct ifreq *ifr;
struct ifconf ifc;
int s, i;
int numif;

// find number of interfaces.
memset(&ifc, 0, sizeof(ifc));
ifc.ifc_ifcu.ifcu_req = NULL;
ifc.ifc_len = 0;

if ((s = ::socket(PF_INET, SOCK_STREAM, 0)) < 0)
{
CCLog("SgProfile::GetMac 111111");
return false;
}

if (ioctl(s, SIOCGIFCONF, &ifc) < 0)
{
CCLog("SgProfile::GetMac 222222");
return false;
}

if ((ifr = (ifreq*) malloc(ifc.ifc_len)) == NULL)
{
CCLog("SgProfile::GetMac 333333");
return false;
}

ifc.ifc_ifcu.ifcu_req = ifr;

if (ioctl(s, SIOCGIFCONF, &ifc) < 0)
{
CCLog("SgProfile::GetMac 333333 ioctl SIOCGIFCONF error!");
return false;
}

numif = ifc.ifc_len / sizeof(struct ifreq);

for (i = 0; i < numif; i++)
{
struct ifreq *r = &ifr[i];
struct sockaddr_in *sin = (struct sockaddr_in*)&r->ifr_addr;
if (!strcmp(r->ifr_name, "lo"))
continue; // skip loopback interface

// get MAC address
if(ioctl(s, SIOCGIFHWADDR, r) < 0)
{
CCLog("SgProfile::GetMac 333333 ioctl(SIOCGIFHWADDR) error!");
continue;
}

memcpy(pBuffer,r->ifr_hwaddr.sa_data,6);
close(s);
free(ifr);

return true;
}

return false;
}