Get IP NSString from address data in iOS

gistfile1.txt

#include <arpa/inet.h>
- (NSString *)getStringFromAddressData:(NSData *)dataIn {
    struct sockaddr_in  *socketAddress = nil;
    NSString            *ipString = nil;
    
    socketAddress = (struct sockaddr_in *)[dataIn bytes];
    ipString = [NSString stringWithFormat: @"%s",
                inet_ntoa(socketAddress->sin_addr)];  ///problem here
    return ipString;
}