Objective: write a program that can send a message to another user logged into a Unix computer.

• Write a C program mywrite whose behavior resembles that of the system command write.
• mywrite accepts the following parameters:

  $ mywrite username ttyname
  

  where username is a name of the user logged into a terminal ttyname.
• mywrite operates by copying lines from stdin of your terminal to stdout of the username's terminal.
• Every line typed by the sender must be displayed at the receiver's terminal immediately after the sender presses the Enter key or closes the connection.
• The first line to be displayed on the username's terminal will look like this:

  Message from yourname@yourhost on yourtty at hh:mm...
  

• When the user who started mywrite presses Ctrl-D (EOF), mywrite closes the connection and displays the final message on the username's terminal:

  EOF
  

• A single C source code file with your work.
• Several screenshots (in PNG or JPG format) showing two terminal windows side by side with the mywrite messaging session.