nouney questions

nouney answers

• FD_ISSET always true even if there is no new data?
• How to implement your own cd command in your own shell [duplicate]
• Lifespan of a struct within C program
• Linux RAW sockets - Unable to use write() instead of sendto()
• What does the exclamation mark mean in big-o, i.e. O(X!)? [duplicate]
• Socket Programming in C(Client Server Example)
• how to pass the entire string over the read and write function in TCP socket programming in c program
• Equal header file in different include paths
• is raw socket datagram socket or not?
• What's the complexity of map/set :: insert if one has provided a correct iterator hint?