* #4241: Check for address of single character passed as string
Add a check that address of a single character is not passed as argument
to argument marked as strings (using strz). The check does not warn if
the address of a character with known value '\0'.
Since ValueFlow currently does not handle global constants (see #7597),
do not warn if the variable is global to avoid FPs when the address of
a global variable assigned to '\0' is passed to a function expecting a
string.
Remove comment in docs saying strz is unused.
* Change asdf to Hello world
* Add test of address to first element in string
* Add error reporting function to getErrorMessages
* Fix strings in test
Commit 5cc8da2db4 introduced syntax checking of xml-files. This broke
running the file directly in the test/cfg folder since it assumed the
config files to check were located in cfg in the current working
directory. Fix this by adding a variable that holds the correct path.
Make the names of uninitvar_* functions consistent and fix typos.
Remove completely redundant functions/tests. Combine according tests if
they are not completely redundant.
minsize with argvalue for arg 2 which is a char pointer makes no sense.
Changing it to minsize with strlen for arg 2 results in false positives
(and i think false negatives too).
In std.c a test with a valid vsprintf usage is added that would result
in a FP when minsize with strlen for arg 2 would be used.
Add configuration and tests for LocalAlloc, LocalFree and some other
Local* functions.
LocalReAlloc is currently not configured as an alloc/dealloc function
(like realloc is not configured in std.cfg), i am not sure how to
correctly configure it.
Enhance *Equal/*Compare/*Copy/*Move/*Zero/*Fill memory functions to
catch buffer access out of bounds errors and ignored return values.
Replaced some function configuration by according defines as it is done
in windows to avoid redundant (and error prone) configurations.
Add configuration for G_UNLIKELY and G_LIKELY to avoid syntax errors
when these macros are used as condition without enclosing brackets.
Add test file to verify Gtk library configuration. Syntax check for the
test file is only done when Gtk+2.0 or Gtk+3.0 is found and working.
Tested on Cygwin and on Ubuntu 16.04.
Add Windows Socket 2 type/function configuration. There are still many
(microsoft specific) socket functions that are not yet configured.
Add configuration for GetUserName(), GetWindowText() and _fileno().
On Windows __wchar_t is a synonym for wchar_t, so an according define is
added.
wxDebugContext is only defined if wxUSE_DEBUG_CONTEXT is 1, so otherwise
just skip it for syntax checking because it will fail.
Change wxT to wxT_2 and add wxT_2 to the config to remove a warning
during syntax check and be more compatible with newer/older wxwidgets
versions.
Be more precise when replacing function like macros, fix redundant macro
definition for "_".
First resolved TODO in std.c is obsolete since the "res" variable is used later
and there is therefore no warning issued.
Second resolved TODO in std.c: A warning for uninit variables is issued by
cppcheck, so this check can be enabled. Since assert() has no noreturn configuration
(currently a useful configuration is not really possible, see ticket 8329) the
check-library message is suppressed.
Add equivalent tests for the wide character string functions like they
are already done for the normal string functions.
Fixed some issues with the configuration of the wide character string
functions that arised through the tests and were already fixed for the
normal string functions.
For the syntax check g++ needs to know the wxWidgets include paths which
are retrieved via wx-config. If includes are missing or not working the
syntax check is skipped.
wxwidgets.cpp: Fixed syntax, includes and added code so the syntax check
does not fail if some special features are not present.
Add test file for wxwidgets configuration, fix found issues and enhance
the cfg a bit:
Fix declarations in comments for wxLog* functions.
Merge the two wxTextFile::Create overloaded function configurations into
one that works for both now.
Removed use-retval attribute from wxBoxSizer::AddSpacer and
wxButton::SetDefault configuration since the functions have side effects
and there is no need to use the return value.
Add some function configurations, the macro _(str) and POD wxLogLevel.
Add function configurations with tests for:
GetLocalTime, GetSystemTime, GetLastError, SetLastError,
AllocateAndInitializeSid, FreeSid, HeapAlloc, HeapReAlloc, HeapFree,
HeapSize, HeapValidate and GetProcessHeap.
test/cfg/runtests.sh: Enable --inconclusive for the windows tests to
avoid some issues in the future.
Add configuration for the deprecated strlwr/strupr functions with
according warning.
test/cfg/windows.cpp: Added tests for strlwr and strupr. Moved function
call that does not return (FreeLibraryAndExitThread) to the end of the
function to fix analysis that was silently aborted at that point
(reported as issue #8378).
* posix library: Add strtok tests
In the posix library there is the same configuration for strtok but a
warning is added.
* posix.cfg: Remove redundant configuration for strtok, add comment.
* checkio: Fixed potential usage of invalid iterator.
* formatted the code.
A ticket about FN (invalidIterator1) is created at https://trac.cppcheck.net/ticket/8373
Implemented tests for the following windows configurations (more will
follow):
-Semaphore usage
-lstrcat function configuration
-_countof macro configuration
-Mutex usage
-Library usage (LoadLibrary, GetProcAddress, ...)
I intentionally removed the second access() configuraion because it was
missing the use-retval attribute. But calling access() without using the
return value is absolutely senseless.
I added tests to posix.c to verify the correct configuration of
access().
* Fix#7504: posix: open() was twice in configuration file
This fixes ticket #7504: Problems with the open function were not always
detected because the open function was twice in posix.cfg and only the
second configuration was used by cppcheck. Like suggested now only
one configuration is used and the third parameter has a default value
and is thereby optional.
use-retval has been removed to avoid duplicate warnings because the
alloc/dealloc configuration already warns about unused retval.
According tests to verify that open is configured
correctly now have been added to test/cfg/posix.c.
* posix.cfg: open(): Add TODO for use-retval configuration
Daniel Marjamäki
orbitcowboy
amai
rikardfalkeborn
Sebastian
orbitcowboy
versat
Matthias Krüger
orbitcowboy