Ping-CLI-Application

Replicating the ping command using C language

Features

The Ping CLI Application covers various features like:-

• Accepting as a positional terminal argument a hostname or IP address.
• Showcases equivalent IP Address for the hostname argument
• Showcases the resolved reverse lookup domain value, i.e., converts dot notation IP address to hostname.
• Emitting requests with a periodic delay as long as the program is running.
• Report of packets sent lost and received as well as RTT times and total time.
• Features like TTL as argument and time exceeded alert if the TTL value of a packet is greater than the specified value and prints information baout that packet (At least information about one packet is always printed). Many more features are present.

Folder Contents

Ping_Cli_Application.c - This file contains the source code of the Ping Application developed using C language.

makefile - This file is used to compile the code and produce an executable file.

.gitignore - To ignore the executable file generated during compilation.

How to run this program

The program can be run either using makefile or by compiling Ping_Cli_Application.c

Install essential packages using Linux terminal or WSL on windows.

$ sudo apt-get install build-essential

By Compiling- Compile the program by typing the following commands into the terminal:-

$ gcc Ping_Application_CLI.c -o pingcli 
$ sudo ./pingcli <argument1> <argument2> 

Using make file- cd into the directory containing the makefile. Now type following commands into the terminal:-

$ make
$ sudo ./pingcli <argument1> <argument2>

Arguments

It accepts 2 diiferent argumants as follows:-

Hostname/IP Address- The first argument consists of a Hostname (google.com) or an IP Address (216.58.203.46) and is compulsory to be provided.

TTL value- The second argument is optional in nature and is an integer value in the range -32,768 to 32,767 (Supported by 2-bit ‘int’ datatype in C). Any value which is not an integer in nature will result in “Not an Integer” alert.

If number of arguments is less than 2 or more than 3 it will result in an alert.