42 - MINITALK PROJECT

Mandatory Part

You must create a communication program in the form of a client and a server.

• The server must be launched first, and after being launched it must display its PID.
• The client will take as parameters:
  • The server PID
  • The string that should be sent
• The client must communicate the string passed as a parameter to the server. Once the string has been received, the server must print it.
• The server has to display the string pretty quickly. Quickly means that if you think it takes too long, then it is probably too long.
• Your server should be able to receive strings from several clients in a row, without needing to be restarted.
• You can only use the two signals SIGUSR1 and SIGUSR2.

Technical Considerations

• You have to handle errors sensitively. In no way can your program quit unexpectedly (segmentation fault, bus error, double free, etc.).
• Your program cannot have memory leaks.
• You may use one global variable but it must be justified.
• For the mandatory part, you are allowed to use the following functions:
  • write
  • ft_printf and any equivalent YOU coded
  • signal
  • sigemptyset
  • sigaddset
  • sigaction
  • kill
  • getpid
  • malloc
  • free
  • pause
  • sleep
  • usleep
  • exit

Bonus Part

• The server confirms every signal received by sending a signal to the client.
• Unicode characters should be supported.

Output for mandatory part

Output for bonus part