What is a traffic controller? what are its functions?

Anetwork security application that prevents access between a private and trusted network and other untrusted networks

Write a program that begins by reading in a series of positive integers on a single line of input and then computes and prints the product of those integers. integers are accepted and multiplied until the user enters an integer less than 1. this final number is not part of the product. then, the program prints the product. if the first entered number is negative or 0, the program must print “bad input.” and terminate immediately

The can be used to paste text in any order.