Re: printing stream columns

On Wed, Oct 16, 2019 at 12:48 PM Henri Dubois-Ferriere
<[email protected]> wrote:
>
> I'm trying to print the record type for each log stream at startup. Something like:
>
>  for ( id in Log::active_streams ) {
>                  local stream = Log::active_streams[id];
>                  print stream$path, stream$columns;
> }
>
> doesn't work because $columns is a record type, and gets stringified "<no value description>".

Zeek 3.0 should give better descriptions for types.  This was the
relevant patch which is not in any 2.6.x version:

  https://github.com/bro/bro/commit/1f450c05102be6dd7ebcc2c5901d5a3a231cd675

This script may also help demonstrate things related to what you're
trying to do:

  https://gist.github.com/jsiwek/f843b3321f4227b6ec32d110424ebf70

It prints field descriptions of all logs either to stdout or a CSV
file.  Example command:

  ZEEK_ALLOW_INIT_ERRORS=1 zeek print-log-info.bro PrintLogs::csv=F

Sample of output:

known_hosts.log | Hosts with complete TCP handshakes
  ts: time - The timestamp at which the host was detected.
  host: addr - The address that was detected originating or responding
to a TCP connection.

- Jon
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