+(NSString *)getIPAddress {
if (mLocalIP !=
nil) {
return mLocalIP;
}
struct ifaddrs *interfaces =
NULL;
struct ifaddrs *temp_addr =
NULL;
int success = 0;
// retrieve the current interfaces - returns 0 on success
success =
getifaddrs(&interfaces);
if (success == 0) {
// Loop through linked list of interfaces
temp_addr = interfaces;
while(temp_addr != NULL) {
if(temp_addr->ifa_addr->sa_family ==
AF_INET) {
// Check if interface is en0 which is the wifi connection on the iPhone
if([[NSString
stringWithUTF8String:temp_addr->ifa_name]
isEqualToString:@"en0"]) {
// Get NSString from C String
mLocalIP = [NSString
stringWithUTF8String:inet_ntoa(((struct
sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
}
}
temp_addr = temp_addr->ifa_next;
}
}
// Free memory
freeifaddrs(interfaces);
return
mLocalIP;
}