iphone - ios get ip address code worked before but failed now -

i use code below ip address of iphone

#define ios_cellular    @"pdp_ip0" #define ios_wifi        @"en0" #define ios_vpn         @"utun0" #define ip_addr_ipv4    @"ipv4" #define ip_addr_ipv6    @"ipv6" - (nsstring *) getipaddress1; {     nsstring *address = @"error";     struct ifaddrs *interfaces = null;     struct ifaddrs *temp_addr = null;     int success = 0;      // retrieve 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 en0 wifi connection on iphone                   nsstring *s= [nsstring stringwithutf8string:temp_addr->ifa_name];                  nslog(@"%@       ---",s);                 if([s isequaltostring:ios_wifi] || [s isequaltostring:ios_cellular] || [s isequaltostring:ios_vpn])                 {                     // nsstring c string                     address = [nsstring stringwithutf8string:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];                 }             }             temp_addr = temp_addr->ifa_next;         }     }      // free memory     freeifaddrs(interfaces);      return address;  } 

it worked before, returns @"error".

i tried method mention here

iphone/ipad/osx: how ip address programmatically?

but none workd

your comment welcome

try

#import <ifaddrs.h> #import <arpa/inet.h>   - (nsstring *)getipaddress {  nsstring *address = @"error"; struct ifaddrs *interfaces = null; struct ifaddrs *temp_addr = null; int success = 0; // retrieve 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 en0 wifi connection on iphone             if([[nsstring stringwithutf8string:temp_addr->ifa_name] isequaltostring:@"en0"]) {                 // nsstring c string                 address = [nsstring stringwithutf8string:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];              }          }          temp_addr = temp_addr->ifa_next;     } } // free memory freeifaddrs(interfaces); return address; 

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