necho

About

network echo, or necho (super clever ikr), is a cli widget that writes to stdout the icmp echo reply data from a server

Usage

$ necho
#> usage: necho [HOST] [MESSAGE...]

$ necho 8.8.8.8 "if you're reading this, I'm alive."
#> if you're reading this, I'm alive.

$ necho 127.0.0.1 look mom\! no quotes
#> look mom! no quotes

$ cat war-and-peace-the-extended-cut.txt | xargs -0 necho 1.1.1.1
#> main: Message too long

$ necho 9.8.7.6.5.4.3.2.1 lift off
#> sendto: Permission denied

Install

$ git clone https://github.com/bchadwic/necho.git
$ gcc -o necho main.c
# stop! run the below if you trust me, which you definitely shouldn't
$ sudo mv necho /usr/local/bin/ && sudo setcap cap_net_raw+ep /usr/local/bin/necho

Appendix

this is for educational purposes only, it doesn't support dns names, ipv6, windows, timeouts, or anything else