🖥️ 42Heilbronn 🇩🇪

Project - Minitalk 💻 🔄 🖥️

✅ 125/125

📋 Project info: subject

🟢 Mandatory Part

✳️ A communication program in the form of a client and a server.

• The server must be started first. After its launch, it has to print its PID.
• The client takes two parameters:
  • The server PID.
  • The string to send.
• The client must send 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.

💡 1 second for displaying 100 characters is way too much!

• Your server should be able to receive strings from several clients in a row without needing to restart.
• The communication between your client and your server has to be done only using UNIX signals.
• You can only use these two signals: SIGUSR1 and SIGUSR2.

✳️ Project instructions

• Name your executable files client and server.
• You have to turn in a Makefile which will compile your source files. It must not relink.
• You can definitely use your libft.
• You have to handle errors thoroughly. In no way your program should quit unexpectedly (segmentation fault, bus error, double free, and so forth).
• Your program mustn’t have memory leaks.
• You can have one global variable per program (one for the client and one for the server), but you will have to justify their use.
• In order to complete 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

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⭐ Bonus part

✴️ Bonus list:

• The server acknowledges every message received by sending back a signal to the client.
• Unicode characters support!