One of the problems with your code is that you are using IP address INADDR_ANY. This allows your program to work without knowing the IP address of the system it is running on, or, in the case of a system with multiple network interfaces, it allows your server to receive packets destined to any of the interfaces. However there are issues with using INADDR_ANY. Do a Google search on INADDR_ANY for more information.

I suggest that you bind to a specific server address.