buffer_hexdump

JS Buffer's one of the missing hexdump method

Usage

After extending Buffer's methodes with hexdump method, you can simply call it.

Example

Using it as pcap data visualizer.

...
const pcapp = require('pcap-parser');
const parser = pcapp.parse('some_path/data.pcap');
var buffer = undefined;
parser.on('packet', function(packet) {
    if (packet.data && packet.data.length) {
        buffer = packet.data;
        console.log(buffer.hexdump());
    }
});

which will produce...

+======+=================================================+==================+
| OFS  | 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F | ASCII            |
+======+=================================================+==================+
| 0000 | 00 00 0c 07 ac 64 00 26 55 d8 09 29 08 00 45 00 | ........U.....E. |
| 0010 | 00 57 40 73 40 00 40 06 da ed 0a 64 01 3b 0a a0 | .W.............. |
| 0020 | 09 02 13 b0 13 88 af a3 2c 64 bd 32 df b8 80 18 | ...........2.... |
| 0030 | 00 b5 64 1d 00 00 01 01 08 0a c1 c6 83 57 20 81 | .............W.. |
| 0040 | 00 b8 3e 00 23 ab 7d 48 7b 0f 51 e4 69 22 32 e8 | .......H..Q...2. |
| 0050 | 0a 9c 6d 0e 00 00 e0 00 e0 02 d8 2a 19 f0 00 00 | ................ |
| 0060 | 80 40 44 00 b6                                  | ..D..            |
+======+=================================================+==================+

...something like this output above.