How to List TCP/UDP Connections in iOS 4

Question

I am interested in deriving a list of active TCP/UDP network connections on an iOS 4.3 device. Basically, I\'m looking for the same type of information one gets from issuin

Answer 1

I believe I have now answered my own question. Thought I had taken a close enough look at the sysctl() library function, but I hadn't! For example, the following will yield information about the current TCP connections:

sysctlbyname("net.inet.tcp.pcblist", ...)

To get information about UDP connection, simply use a different Management Information Base (MIB) name: net.inet.udp.pcblist.

For convenience, here's a link to the appropriate iOS man page:

http://developer.apple.com/library/ios/#documentation/System/Conceptual/ManPages_iPhoneOS/man3/sysctlbyname.3.html