Wireshark mailing list archives
Re: tshark buffered packet dissection -- no realtime output?
From: Lee <ler762 () gmail com>
Date: Fri, 12 Jan 2018 14:31:36 -0500
On 1/12/18, Ralph Schmieder <ralph.schmieder () inka de> wrote:
running tshark on Fedora 26 (TShark (Wireshark) 2.2.8 (wireshark-2.2.8)). I get packets in pcap-ng format from a REST API which I feed via stdin into tshark like this: curl $API | tshark -l -r - -T text This basically works. However, the output is buffered, despite using the '-l' option. E.g. only after a couple of packets have arrived, the buffer is flushed and the dissected packets are printed. I also experimented with stdbuf for the curl command but that didn't help either.
does "curl --no-buffer $API" make any difference? -N, --no-buffer Disables the buffering of the output stream. In normal work situations, curl will use a standard buffered output stream that will have the effect that it will output the data in chunks, not necessarily exactly when the data arrives. Using this option will disable that buffering. Regards, Lee ___________________________________________________________________________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org?subject=unsubscribe
Current thread:
- tshark buffered packet dissection -- no realtime output? Ralph Schmieder (Jan 12)
- Re: tshark buffered packet dissection -- no realtime output? Lee (Jan 12)
- Re: tshark buffered packet dissection -- no realtime output? Ralph Schmieder (Jan 13)
- Re: tshark buffered packet dissection -- no realtime output? Eldon (Jan 13)
- Re: tshark buffered packet dissection -- no realtime output? Guy Harris (Jan 13)
- Re: tshark buffered packet dissection -- no realtime output? Guy Harris (Jan 13)
- Re: tshark buffered packet dissection -- no realtime output? Ralph Schmieder (Jan 13)
- Re: tshark buffered packet dissection -- no realtime output? Lee (Jan 12)
- Re: tshark buffered packet dissection -- no realtime output? Guy Harris (Jan 13)
- Re: tshark buffered packet dissection -- no realtime output? Guy Harris (Jan 18)