Wireshark crashes with FT_UINT64 and BASE_CUSTOM

Question

Hello,

I try to add a UINT64 field with the following definition:

{ &hf_boxinfo_softwarerelease,
            { "SoftwareRelease", "boxinfo.swRelease",
            FT_UINT32, BASE_CUSTOM,
            displayVersion48, 0x0,
            "SoftwareRelease", HFILL }
}

This field contains 6 bytes, which I want to display as a version (e.g. 03.45.32 so 2 bytes per element) The problem is that Wireshark crashes when I click on the protocol item. I have another simular field with a FT_UINT32 which without troubles. Here is the function's source:

void displayVersion48(gchar *strptr, guint64 value){
     g_snprintf(strptr,15,"TEST");
}

Thank you for help.

lal12

Answer 1

Support for 64bits and BASE_CUSTOM was added in master branch. So please consider using this one and declare your entry as:

{ &hf_boxinfo_softwarerelease,
        { "SoftwareRelease", "boxinfo.swRelease",
        FT_UINT64, BASE_CUSTOM,
        CF_FUNC(displayVersion48), 0x0,
        "SoftwareRelease", HFILL }
}

where displayVersion48 has the following signature:

typedef void (*custom_fmt_func_64_t)(gchar *, guint64);