Apple

CFReadStreamRef readStream = NULL;

CFWriteStreamRef writeStream = NULL;

CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault, (CFStringRef)distantHost, port, &readStream, &writeStream);

CFSocketNativeHandle native;

CFDataRef nativeProp = CFReadStreamCopyProperty(readStream, kCFStreamPropertySocketNativeHandle);

if(nativeProp == NULL)

{

NSLog(@"error");

}

CFDataGetBytes(nativeProp, CFRangeMake(0, CFDataGetLength(nativeProp)), (UInt8 *)&native);

CFRelease(nativeProp);

CFSocketRef distantSocket = CFSocketCreateWithNative(kCFAllocatorDefault, native, 0, NULL, NULL);

CFDataRef distaddr = CFSocketCopyPeerAddress(distantSocket);

struct sockaddr *pSockAddr = (struct sockaddr *) CFDataGetBytePtr(distaddr);

struct sockaddr_in *pSockAddrV4 = (struct sockaddr_in *) pSockAddr;

struct sockaddr_in6 *pSockAddrV6 = (struct sockaddr_in6 *)pSockAddr;

const void *pAddr = (pSockAddr->sa_family == AF_INET) ? (void *)(&(pSockAddrV4->sin_addr)) :(void *)(&(pSockAddrV6->sin6_addr));

char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];

const char *pStr = inet_ntop (pSockAddr->sa_family, pAddr, addrBuf, sizeof(addrBuf));

This code compiles fine, but crashes on the CFDataGetBytes call and I get the error message "Variable is not a CFData at this time" for variable nativeProp.

In the code, distantHost is an NSString containing either a FQDN, an IPv4 or IPv6 (for exemple: "www.google.com"). Further in the code, I am able to read from the readStream, so I don't think the readStream is the problem. Am I wrong? I am completely clueless!

Thanks a Lot,