http://llvm.org/bugs/show_bug.cgi?id=17886
Bug ID: 17886
Summary: Incorrect security warning when format string is
conditional between two constants
Product: clang
Version: trunk
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 11522
--> http://llvm.org/bugs/attachment.cgi?id=11522&action=edit
sample case
Rather than having excessively long calls to functions like
NSRunInformationalAlertPanel(), it is (extremely) common to declare the
parameters individually first.
clang-sa now spuriously warns on this case. It should also avoid warning on
simple conditionals that result in the same 'kind' of format string, with
exactly the same format specifiers in the same order. Note that this should
exclude '%%' specifiers or other specifiers that don't consume arguments.
See the attached sample.
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