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