ft_ping

This is a re-implementation of the ping command from inetutils 2.0 library.

In order to build just run:

make

In order to build and give network capabilities to the binary run:

make USE_RAW_SOCKET=true

This implementation contains the following features as command line options:

$ ./ft_ping -?
Usage: ft_ping [OPTION...] HOST ...
Send ICMP ECHO_REQUEST packets to network hosts.

Options:
  -v                 verbose output
  -f                 flood ping (root only)
  -i <interval>      interval in seconds between ping messages [default 1s]
  -c <count>         number of messages to send, 0 is infinity [default 0]
  -p <pattern>       fill ICMP packet with given pattern (hex)
  -t <N>             specify N as time-to-live
  -?                 give this help list

Testing

For testing I have created a battery of "black box" tests that will compare the exit status, standard output, and messages sent and received between my implementation and the original one.

The test is implemented using Robot Framework, which will run inside a docker container in order to isolate the test environment. Messages will be sent to 127.0.0.1 (localhost) which has been previously configured to not respond automatically to ICMP messages.

In order to launch the test just type:

make test