I need to determine if Internet Connection is available or not. I don't care how it is connected (WI-FI, Lan,etc..) . I need to determine, is Internet Connection available at all .
P.S. I found a way to check WI-FI connection. But I don't care how it is connected (I need to check all the ways that can be connected to Internet).
Something like (isConnected)
This code works for both iOS and OSX platforms, I hope.
#include <SystemConfiguration/SystemConfiguration.h>
static BOOL isInternetConnection()
{
BOOL returnValue = NO;
#ifdef TARGET_OS_MAC
struct sockaddr zeroAddress;
bzero(&zeroAddress, sizeof(zeroAddress));
zeroAddress.sa_len = sizeof(zeroAddress);
zeroAddress.sa_family = AF_INET;
SCNetworkReachabilityRef reachabilityRef = SCNetworkReachabilityCreateWithAddress(NULL, (const struct sockaddr*)&zeroAddress);
#elif TARGET_OS_IPHONE
struct sockaddr_in address;
size_t address_len = sizeof(address);
memset(&address, 0, address_len);
address.sin_len = address_len;
address.sin_family = AF_INET;
SCNetworkReachabilityRef reachabilityRef = SCNetworkReachabilityCreateWithAddress(NULL, (const struct sockaddr*)&address);
#endif
if (reachabilityRef != NULL)
{
SCNetworkReachabilityFlags flags = 0;
if(SCNetworkReachabilityGetFlags(reachabilityRef, &flags))
{
BOOL isReachable = ((flags & kSCNetworkFlagsReachable) != 0);
BOOL connectionRequired = ((flags & kSCNetworkFlagsConnectionRequired) != 0);
returnValue = (isReachable && !connectionRequired) ? YES : NO;
}
CFRelease(reachabilityRef);
}
return returnValue;
}
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