Siddharth Mathur wrote:
> could somebody please tell me the problem with this
> piece of code.
>
> i want to get the 48 bit ethernet address of my card
> in the ifreq structure.
>
> the SIOCGIFADDR is expected to return the hw address,
> i presume...
No; use SIOCGIHWADDR instead.
> the socket system call is successful but the ioctl
> returns 'no such device'
> also if i substitute SIOCGIFADDR with SIOCGIHWADDR
> as given in 'man netdevice' the ioctl error remains
> the same.
As Yurij said, put the device name into ifq.ifr_name.
BTW, it's probably better to use
s = socket(PF_INET,SOCK_DGRAM,IPPROTO_IP);
rather than
s = socket(PF_PACKET,SOCK_DGRAM,ETH_P_IP);
as the latter requires root privilege.
--
Glynn Clements <[EMAIL PROTECTED]>
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