Creates a dynamic store key that can be used to access a specific global (as opposed to a per-service or per-interface) network configuration entity.
- macOS 10.1+
The allocator that should be used to allocate memory for this key. This parameter may be
NULLin which case the current default allocator is used. If this value is not a valid
CFAllocator, the behavior is undefined.
The desired domain, such as the requested configuration or the current state.
The specific global entity, such as IPv4 or DNS.
A string containing the formatted key.