user mode permission denied to bind to socket

Hi,
In user mode [non-root] linux machine, tried to bind a socket by using a "ioctl(iInterfaceSocket, SIOCSIFADDR, &stCommand)". I am getting error 13 -> Permission denied because of user mode. If change from usermode to kernel mode everything works fine.
I need to bind the socket in user mode only, please suggest solution for the above
while explaining the above, if I missed any information please inform, I will provide more info.
Thanks
Eswar