[Gilbert Ramirez <gram@xxxxxxxxxxxxxxx>]

What the code is silently doing is to set a maximum indent of 160 characters. This is the line:

https://gitlab.com/wireshark/wireshark/-/blob/master/epan/print_stream.c?ref_type=heads#L282

(and, lines 320 - 321)

For the purposes of writing to a file, I don't see why the indent should have any maximum. Or, it could be a lot bigger. The MAX_INDENT in epan/print.c, for XML output, is 2048 characters.

I have started a merge request to increase this maximum to 1024.

https://gitlab.com/wireshark/wireshark/-/merge_requests/20278

Gilbert

On Fri, May 23, 2025 at 2:11 AM Tamás Regős <regost@xxxxxxxxx> wrote:

Dear Community,

Could anyone have a look please and confirm if the following observation is related to a bug?

Version 4.4.6 (v4.4.6-0-gaebb20483889).

One example packet is attached.

I compared the two ways of exporting the packet details into a text file:

1. Export Packet Dissectors -> As Plain Text

2. Right click, Copy -> "All Visible Items"

Or more precisely:

1. From Menu: Export Packet Dissectors -> As Plain Text with Packet Format "All expanded"

2. Right click on "NR Radio Resource Control (RRC) protocol", Expand Subtrees, right click again, Copy -> "All Visible Items"

The results do not have the same indent at the very end.

The result of option 1 seems to be incorrect to me.

For option 1:

nonCriticalExtension
    neighCellSI-AcquisitionParameters-v1550
    eutra-CGI-Reporting-ENDC-r15: supported (0)
    phyLayerParameters-v1550
    mac-Parameters-v1550
    fdd-Add-UE-EUTRA-Capabilities-v1550
    tdd-Add-UE-EUTRA-Capabilities-v1550
    nonCriticalExtension
    pdcp-ParametersNR-v1560
    irat-ParametersNR-v1560
    fdd-Add-UE-EUTRA-Capabilities-v1560
    pdcp-ParametersNR-v1560
    tdd-Add-UE-EUTRA-Capabilities-v1560
    pdcp-ParametersNR-v1560
    nonCriticalExtension
    nonCriticalExtension
    neighCellSI-AcquisitionParameters-v15a0
    nonCriticalExtension
    pdcp-Parameters-v1610
    pdcp-VersionChangeWithoutHO-r16: supported (0)
    measParameters-v1610
    altFreqPriority-r16: supported (0)
    mmtel-Parameters-v1610
    ue-BasedNetwPerfMeasParameters-v1610
    nonCriticalExtension
    mac-Parameters-v1630
    fdd-Add-UE-EUTRA-Capabilities-v1630
    measParameters-v1630
    tdd-Add-UE-EUTRA-Capabilities-v1630
    measParameters-v1630
    nonCriticalExtension
    nonCriticalExtension
    irat-ParametersNR-v1660
    nonCriticalExtension
    other-Parameters-v1690
    ul-RRC-Segmentation-r16: supported (0)

For option 2:

nonCriticalExtension
    neighCellSI-AcquisitionParameters-v1550
        eutra-CGI-Reporting-ENDC-r15: supported (0)
    phyLayerParameters-v1550
    mac-Parameters-v1550
    fdd-Add-UE-EUTRA-Capabilities-v1550
    tdd-Add-UE-EUTRA-Capabilities-v1550
    nonCriticalExtension
        pdcp-ParametersNR-v1560
        irat-ParametersNR-v1560
        fdd-Add-UE-EUTRA-Capabilities-v1560
            pdcp-ParametersNR-v1560
        tdd-Add-UE-EUTRA-Capabilities-v1560
            pdcp-ParametersNR-v1560
        nonCriticalExtension
            nonCriticalExtension
                neighCellSI-AcquisitionParameters-v15a0
                nonCriticalExtension
                    pdcp-Parameters-v1610
                        pdcp-VersionChangeWithoutHO-r16: supported (0)
                    measParameters-v1610
                        altFreqPriority-r16: supported (0)
                    mmtel-Parameters-v1610
                    ue-BasedNetwPerfMeasParameters-v1610
                    nonCriticalExtension
                        mac-Parameters-v1630
                        fdd-Add-UE-EUTRA-Capabilities-v1630
                            measParameters-v1630
                        tdd-Add-UE-EUTRA-Capabilities-v1630
                            measParameters-v1630
                        nonCriticalExtension
                            nonCriticalExtension
                                irat-ParametersNR-v1660
                                nonCriticalExtension
                                    other-Parameters-v1690
                                        ul-RRC-Segmentation-r16: supported (0)

Is this a formatting bug of exporting under option 1?

Thank you.

Regards,

Tamas

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