C dynamic circular linked list

Hey programming,
teach me how to make a dynamic circular linked list in C!
I will make you guys proud one day.

>>10
No, you're wrong you dumb autistic jew.. Here is an example from work. Say on a unix box I have a link to a file. Now I remove the link because I don't want another process to access it. Now the process terminates. The OS won't clean up the memory because there is still a reference to this file.