Wireshark mailing list archives

Re: How to evaluate hex/ebcdic packet data LUA


From: Jerry White <jerrywhite518 () gmail com>
Date: Mon, 24 Oct 2016 07:31:55 -0700

You, sir, are my new hero. It all works. Thank you!

Jerry

On Sun, Oct 23, 2016 at 11:48 PM, Guy Harris <guy () alum mit edu> wrote:

That won't work for EBCDIC.

All strings are kept as UTF-8 internally to Wireshark; this means that
Wireshark translates them from the character encoding in the packet to
UTF-8, and therefore that Wireshark must be told what the encoding for the
field is.

Therefore, you should do

        tree:add_packet_field(pf_mgi_flag, tvbuf:range(19,1), ENC_EBCDIC)

to add it to the protocol tree.

To fetch the actual string, you'd need to do

        local mgi_flag = tvbuf:range(19,1)
        local info_mgi_flag = mgi_flag:string(ENC_EBCDIC)


___________________________________________________________________________
Sent via:    Wireshark-dev mailing list <wireshark-dev () wireshark org>
Archives:    https://www.wireshark.org/lists/wireshark-dev
Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-dev
             mailto:wireshark-dev-request () wireshark org?subject=unsubscribe

Current thread: