// Get IP Address
- (NSString *)getIPAddress {
NSString *address =@"error";
structifaddrs *interfaces = NULL;
structifaddrs *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([[NSStringstringWithUTF8String:temp_addr->ifa_name]isEqualToString:@"en0"]) {
// Get NSString from C String
address = [NSStringstringWithUTF8String:inet_ntoa(((structsockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
}
}
temp_addr = temp_addr->ifa_next;
}
}
// Free memory
freeifaddrs(interfaces);
return address;
}