SocketAddress.cpp ipv6_from_address does not clear byte who have been moved. FIX included #2931
Description
In the function ipv6_from_address(), address values of IPv6 address after a :: is found are moved to the end of the short[] array. But the source memory of the moved part should also be cleared with zeros before the address values in front of the :: are copied. In the current implementation this may lead to an invalid address conversion.
// Move suffix to end
memmove(&shorts[NSAPI_IPv6_BYTES/2-suffix], &shorts[0], suffix*sizeof(uint16_t));
// FIX, clear source of moved memory.
for( int i = 0 ; i < NSAPI_IPv6_BYTES/2-suffix; i++ )
{
shorts[i] = 0;
}