This is an implementation of netstat, used in Lirum Device Info - that lists all active connections. Netstat (network statistics) is a command-line network utility tool that displays network connections for TCP (both incoming and outgoing), routing tables, and a number of network interface (network interface controller or software-defined network interface) and network protocol statistics. It is available on Unix-like operating systems including OS X, Linux, Solaris, and BSD, and is available on Windows NT-based operating systems including Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10. For iOS however, there wasn't a native implementation, so we had to adapt the code of netstat to work with Objective-C, and put it into a library. The implementation runs on iPhones, iPod Touches and iPads prior to iOS 10 (since the iOS 10 betas, this code does not returns the active connections anymore).
Link to YouTube - Lirum Device Info - Network Connections
To use it, just add the static library on Linked Frameworks and Libraries, and then call the initializers:
Lirum_Network * l = [[Lirum_Network alloc] init];
NSMutableDictionary *m = [l getConnections];
[Lirum_Network initializeNetworkElements];
NSLog(@"Connections: %@", m);
NSLog(@"WWAN IP: %@", [Lirum_Network getWWanIP]);
NSLog(@"Wifi IP: %@", [Lirum_Network getWifiIP]);
NSString *wwanIP = [Lirum_Network getWWanIP];
NSString *wifiIP = [Lirum_Network getWifiIP];
[txtOutput setText: [NSString stringWithFormat:@"WWAN IP: %@\nWifi IP: %@\nConnections:\n%@", wwanIP, wifiIP, m]];
Running on an iPhone 6S Plus - iOS 9.3.5:
The return from Lirum_Network getConnections is a NSDictionary grouped by Protocol Type (IPv6, IPv4, TCP, UDP, etc). Sample return in plaintext:
"IP6.TCP" = (
{
local = "fe80:8::1c70:97ae:bfc8:c1a0.61731";
"local.namedport" = "fe80:8::1c70:97ae:bfc8:c1a0.61731";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:8::26a0:74ff:feea:538.57527";
"remote.namedport" = "fe80:8::26a0:74ff:feea:538.57527";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:8::1c70:97ae:bfc8:c1a0.61730";
"local.namedport" = "fe80:8::1c70:97ae:bfc8:c1a0.61730";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:8::26a0:74ff:feea:538.57477";
"remote.namedport" = "fe80:8::26a0:74ff:feea:538.57477";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.1025";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.blackjac";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.60492";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.60492";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.3555";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.razor";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.1025";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.1025";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.1025";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.blackjac";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.36540";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.36540";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.1025";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.blackjac";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.51787";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.51787";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.1025";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.blackjac";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.47541";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.47541";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.62475";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.62475";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.1025";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.1025";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "fe80:b::db25:5b8:d6c4:b265.1024";
"local.namedport" = "fe80:b::db25:5b8:d6c4:b265.1024";
proto = "tcp6 ";
recvq = " 0";
remote = "fe80:b::f39f:9239:85b6:5d1e.1024";
"remote.namedport" = "fe80:b::f39f:9239:85b6:5d1e.1024";
sendq = " 0";
state = ESTABLISHED;
},
{
local = "*.62078";
"local.namedport" = "*.62078";
proto = "tcp6 ";
recvq = " 0";
remote = "*.*";
"remote.namedport" = "*.*";
sendq = " 0";
state = LISTEN;
},
{
local = "::1.8021";
"local.namedport" = "::1.intu-ec-";
proto = "tcp6 ";
recvq = " 0";
remote = "*.*";
"remote.namedport" = "*.*";
sendq = " 0";
state = LISTEN;
}
);
"IP6.UCP" = (
{
local = "*.5353";
"local.namedport" = "*.5353";
proto = "ucp6 ";
recvq = " 0";
remote = "*.*";
"remote.namedport" = "*.*";
sendq = " 0";
}
);
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