Created
August 20, 2011 03:01
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get ip address of device
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- (NSString *)getIPAddress | |
{ | |
NSString *address = @"error"; | |
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 | |
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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