dvnishshanka / 42-Berlin-minitalk

Client Server Program

42-Berlin-minitalk

This is a simple client-server communication program in C that allows the client to send a string to the server using signals. The server, upon receiving the string, will print it. The program uses the concept of signals in C for inter-process communication.

Languages

Features

• The server is started first and prints its PID upon launch.
• The client takes two parameters: the server PID and the string to send.
• The server displays the received string pretty quickly.

Resources

• https://www.qnx.com/developers/docs/6.5.0SP1.update/com.qnx.doc.neutrino_lib_ref/s/sigaction.html
• https://www.qnx.com/developers/docs/6.5.0SP1.update/com.qnx.doc.neutrino_lib_ref/s/sigaction_struct.html

Usage

• Compile and create the executables

  make
  

  For Bonus:

  make bonus
  

• Start the server

  ./server
  

  For Bonus:

  ./server_bonus
  

• Run the client by executing the client executable and passing the server PID and the string to send as arguments

  ./client <server_pid> <string_to_send>
  

  For Bonus:

  ./client_bonus <server_pid> <string_to_send>
  

  Example

  ./client 12345 "Hello, server! This is a test message."
  

Result: 1️⃣2️⃣5️⃣ / 1️⃣0️⃣0️⃣ ✔️