Review Request 126556: Ensure group is unescaped properly in kconf_update.

[Matthew Dawson]

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Review request for KDE Frameworks and Matthew Dawson.


Repository: kconfig


Description
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During a kconf_update run, an invalid group name may be treated as correct
even though the name failed to unescape.  This leads the group name to be
a null character, which will fail.

If the unescape failed, return that failure status instead.  This should have
no impact, as the previous result would have been wrong anyways.  Now a
more useful diagnostic will be returned instead.

Update the unit tests to ensure this issue is tested in the future.

Found in Coverity issue 258087.


Diffs
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  autotests/test_kconfigutils.cpp 0946cf8a89135e12c1769a3ab6749434aa9691ce 
  src/kconf_update/kconfigutils.cpp 02b3f0a9d245fdc9d0067635e9b59bc84eefc206 

Diff: https://git.reviewboard.kde.org/r/126556/diff/


Testing
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Unit tests pass after change, new test fails without code change.


Thanks,

Matthew Dawson

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