On Fri, 4 Aug 2006, Mario Lobo wrote:
Would anyone have a tip on how to get the MAC from a C program?
I tried:
struct ifreq ifreq;
unsigned char *hw;
strcpy(ifreq.ifr_name, "rl0");
ioctl(fd, SIOCGIFMAC, &ifreq);
hw = ifreq.ifr_ifru.ifru_data; ????
but i don't know if this is right or, if it is, where to get the MAC from
the structure. I doesn't issue any error compiling or running though.
Usually the general purpose interface recommended for inspecting interface
information is getifaddrs(), which will build a userspace list of interfaces
and their various addresses, including link-layer addresses. Something like
the above will work, but may not be preferred.
Robert N M Watson
Computer Laboratory
University of Cambridge
In linux i used:
struct ifreq ifreq;
unsigned char *hw;
strcpy(ifreq.ifr_name, "rl0");
ioctl(fd, SIOCGIFHWADDR, &ifreq);
hw = ifreq.ifr_hwaddr.sa_data;
Thanks,
Mario
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