[Wireshark code review <code-review-do-not-reply@xxxxxxxxxxxxx>]

URL: https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=c67c6e8f30b02450de2d9fb02b91026c5f954448
Submitter: Guy Harris (guy@xxxxxxxxxxxx)
Changed: branch: master
Repository: wireshark

Commits:

c67c6e8 by Guy Harris (guy@xxxxxxxxxxxx):

    Add routines to add an item and return the item's real length.
    
    proto_item_get_len() is *not* guaranteed to return a correct value.
    Even if there's a non-null tree item, it might be pointing to a "faked"
    item; it really shouldn't be used.
    
    So add proto_tree_add_item_ret_length() and
    proto_tree_add_item_new_ret_length(), which calculate the real length
    themselves and return it through a pointer.
    
    Fix as many places as we straightforwardly can to use them rather than
    to use proto_item_get_len().  (There's a Lua API for
    proto_item_get_len(), so we keep it around, but we should add Lua APIs
    for the new routines, and deprecate the old API.)
    
    Fix ptvcursor_add() to do the same thing that
    proto_tree_add_item_ret_length() and
    proto_tree_add_item_new_ret_length() do.
    
    Split the TRY_TO_FAKE_THIS_ITEM macros into a macro to check for the
    tree being null and to try to fake the item.  We don't always use the
    former macro, as we might need to do more than just return NULL if the
    incoming tree is null (for example, calculating the item's real length
    and using it...).
    
    new_field_info() never returns NULL; remove checks for it.  The check
    for a null tree is done before the calls to new_field_info().
    
    Change-Id: I002a218d1f810c73e0de837e0ac6ebcde21bacec
    Reviewed-on: https://code.wireshark.org/review/13139
    Reviewed-by: Guy Harris <guy@xxxxxxxxxxxx>
    

Actions performed:

    from  628c068   Qt: Save the default capture device name.
    adds  c67c6e8   Add routines to add an item and return the item's real length.


Summary of changes:
 debian/libwireshark0.symbols   |    2 +
 epan/dissectors/packet-lat.c   |    5 +-
 epan/dissectors/packet-quake.c |   48 +++---
 epan/dissectors/packet-sccp.c  |    3 +
 epan/proto.c                   |  322 +++++++++++++++++++++++++++++++++++-----
 epan/proto.h                   |   26 +++-
 epan/wslua/wslua_tree.c        |    1 +
 7 files changed, 348 insertions(+), 59 deletions(-)