ft_ping

Clone of ping (GNU inetutils 2.0)

Note

You can get any version here

demo.mp4

Usefull links

1. Internet Protocol RFC791
2. Internet Control Message Protocol RFC792

Usage

Warning

This repo use submodules, make sure you fetch those all

bash:~$ git clone git@github.com:Pixailz/ft_ping --recurse-submodules
bash:~$ cd ft_ping
bash:~/ft_ping$ make bonus
[...]
bash:~/ft_ping$ ./ft_ping --help
Usage: ft_ping [OPTION...] HOST ...
Send ICMP ECHO_REQUEST packets to network hosts.

 Options valid for all request types:

  -c, --count=NUMBER         stop after sending NUMBER packets
  -i, --interval=FLOAT       wait, FLOAT * 1, second between sending each packet
  -n, --numeric              do not resolve host addresses
      --ttl=N                specify N as time-to-live
  -T, --tos=NUM              set type of service (TOS) to NUM
  -v, --verbose              verbose output
  -w, --timeout=N            stop after N seconds
  -W, --linger=N             number of seconds to wait for response

 Options valid for --echo requests:

  -f, --flood                flood ping (root only)
  -l, --preload=NUMBER       send NUMBER packets as fast as possible before
                             falling into normal mode of behavior (root only)
  -p, --pattern=PATTERN      fill ICMP packet with given pattern (hex)
  -q, --quiet                quiet output
  -s, --size=NUMBER          send NUMBER data octets

  -?, --help                 give this help list
      --usage                give a short usage message
  -V, --version              print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Options marked with (root only) are available only to superuser.

Report bugs to <pixailz1@gmail.com>.
bash$ sudo ./ft_ping 42angouleme.fr -c1

Usefull command

STATS

to make stats about our ping sudo ./rsc/ping -f 127.0.0.1 & sleep 5s; sudo kill -s SIGINT $!

Caution

This will flood icmp packet as soon as the process received the reply

DEBUG_FD

sudo bash -c "./ft_ping 127.0.0.1 DEBUG_FD>exec.log"

Note

This command output DEBUG_FD to a log file with sudo privileges

VALGRIND

1. ALL

   sudo bash -c "valgrind \
    	--leak-check=full \
    	--show-leak-kinds=all \
    	--track-origins=yes \
    	--trace-children=yes \
    	--track-fds=yes \
    	./ft_ping 127.0.0.1 127.0.0.2 127.0.0.3 DEBUG_FD>exec.log"

TODO

1. print_packet -> get_packet_str