How to get IP addresses of all interfaces on OS X using C

Question

I am porting code from linux to OS X where I am getting these errors:

src/proxy_linux.c:784: error: 'SIOCGIFHWADDR' undeclared (first use in this function)
src/proxy_linux.c:784: error: (Each undeclared identifier is reported only once
src/proxy_linux.c:784: error: for each function it appears in.)
src/proxy_linux.c:788: error: 'struct ifreq' has no member named 'ifr_hwaddr'

I am using Mac OS X 10.7.5 (11G63) ) as development system.

SIOCGIFHWADDR is not supported on OS X and I am not able to find any credible source which can list out the ip addresses and MAC addresses of all interfaces. The only one I found on apple developer site uses "IOKit", which is also not backward compatible. Any help in this regard will be appreciated

Answer 1

If Sandbox or App Store is not involved you can parse the output of ifconfig -a yourself and extract the addresses. If so, well, you are out of luck as Apple won't allow this for privacy reasons.