hb

Heartbeat CLI

Usage

Here is an example. The result is the same as seq 1000000.

seq 1000000 | hb | hb -d

Install

Mac

brew install nwtgck/homebrew-hb/hb

Other

Download from https://github.com/nwtgck/hb/releases

Spec

Input data chunk is encoded as two types, DATA and HEARTBEAT.

• DATA: 0x0
• HEARTBEAT: 0x1

DATA type has Length, which is the length in octets of the Data.

+--------------------+--------------+-------------------- - - - ---+
|    DATA type (8)   |  Length (32) |  Data (Length * 8)   ...     |
+--------------------+--------------+-------------------- - - - ---+

HEARTBEAT type has a random octet, which is discarded.

+--------------------+------------+
| HEARTBEAT type (8) | Random (8) |
+--------------------+------------+

• (N): N bits

Help

Heartbeat CLI

Usage: hb [OPTIONS]

Options:
  -d, --decode              Decode
  -n, --interval <SECONDS>  Seconds to send a heartbeat [default: 30]
  -h, --help                Print help
  -V, --version             Print version