Wireshark mailing list archives

Re: How to format a subtree banner?


From: Guy Harris <guy () alum mit edu>
Date: Wed, 4 Aug 2010 19:20:09 -0700


On Aug 2, 2010, at 7:10 AM, eymanm wrote:

Here's how the subtree is displayed (line numbers are added by me):

1    1
2        String1 (1)
3        Value...displayed nice...
... Further values of the subtree...

OK, so the subtree has multiple values under it.

Given that, ...

Line 1 is generated by proto_tree_add_uint_format() and proto_item_add_subtree() functions.

...line 1 should *NOT* correspond solely to the integral value, so you wouldn't use any of the proto_tree_add_uint 
functions.  It should also perhaps give information about the *other* values in that subtree.

Line 2 is generated by proto_tree_add_item() function.

Do lines 2 and 3 *both* correspond to the integral value?  That seems redundant.  Or is it for another value that also 
goes into that subtree?

There is an expansion "+" on line 1. So, if the branch is not expanded, only "1" is visible. My goal is to display 
both "String1" and "1" when the tree is not expanded.

        ti = proto_tree_add_text(tree, tvb, offset of the beginning of the first value covered by the subtree,
            length of *all* the values covered by the subtree, "Subtree name: %s (%u) ...",
            val_to_str(value, String, "Unknown"), value, other values to put into the item);
        subtree = proto_item_add_subtree(ti, ett_subtree);
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