79f6793076
minor code cleanup
2017-12-31 12:30:02 +01:00
a8700f5622
Remove redundant parts of conditional expressions ( #988 )
...
All issues were found with PVS-Studio:
V560 A part of conditional expression is always true: tok. astutils.cpp 407
V560 A part of conditional expression is always true: size > 0. checkbufferoverrun.cpp 709
V547 Expression 'secondTrue' is always true. checkcondition.cpp 1013
V547 Expression 'firstTrue' is always true. checkcondition.cpp 1020
V560 A part of conditional expression is always true: !scan. checkio.cpp 1036
V560 A part of conditional expression is always true: scope->function. checknullpointer.cpp 395
V560 A part of conditional expression is always true: tok2. checkstl.cpp 268
V560 A part of conditional expression is always true: par. tokenize.cpp 9440
V547 Expression '!erased' is always true. symboldatabase.cpp 3990
2017-11-03 10:39:57 +01:00
ba8222de1c
ValueFlow: Put 'inconclusive' state in the ValueKind. A value can't be both known and inconclusive.
2017-09-20 22:41:36 +02:00
f0b5327450
Fix codestyle ( #953 )
2017-09-07 13:00:46 +02:00
0e444aa133
Cache and reuse values
2017-09-05 17:50:36 +03:00
b8cd7dbb5c
Use nullptr instead of 0 or NULL ( #936 )
2017-08-09 20:00:26 +02:00
9b6d371762
checkbufferoverrun: remove dead store
...
the variable was declared inside a loop and the dead store also took place inside the loop (guarded by a condition) without further access of the value after that store.
Found by clang analyzer.
Was:
lib/checkbufferoverrun.cpp:1223:17: warning: Value stored to 'tok' is never read
tok = tok->next();
^ ~~~~~~~~~~~
2017-08-01 16:53:00 +02:00
058c439b2a
Coverity detected useless function call, cleanup code
2017-08-01 12:45:37 +02:00
fec0c46af0
Refactoring, use continue in loop
2017-07-30 14:53:58 +02:00
4bbc830a85
Fix warnings
2017-07-17 10:13:11 +03:00
f4ce49d883
ENH: perfomance: using clear() and empty() more faster for stl containers
2017-06-02 22:38:00 +04:00
28aa939d69
iwyu - include what you use
2017-05-27 04:33:47 +02:00
1dd42d9a9e
arrayIndexOutOfBounds: Make sure error message is clarified for daca2 --template format
2017-05-25 08:18:37 +02:00
70c2de62b7
arrayIndexOutOfBounds: better note
2017-05-23 16:06:32 +02:00
e73657b198
Clarify arrayIndexOutOfBounds
2017-05-23 14:58:43 +02:00
f7cda81c0c
Refactoring: ValueFlow::Value::errorSeverity() will have the logic if value is 'error' or 'warning'
2017-05-23 11:43:56 +02:00
55ae206ecc
ErrorPath: better output
2017-05-19 17:29:16 +02:00
c617851567
ErrorLogger: Added ErrorPath where each item has token and info
2017-05-16 22:38:13 +02:00
f92e7b3bfc
Emit better errorpath in CheckBufferOverrun::negativeIndexError
2017-05-16 19:08:47 +02:00
b526fd7c49
Ticket #7964 : Don't crash on valid code using function pointers named strcpy or strcat in main().
2017-04-21 23:36:10 +02:00
b1f4bd7504
Refactorization: Reimplemented Settings::_enabled as a bitfeld instead of std::set ( #7995 )
2017-04-11 11:49:26 +02:00
7d12e1f3a6
valueFlowGetArrayIndexes: convert Token::Match to Token::simpleMatch.
...
The pattern is a sole "[", but since "[" is also used for complexe patterns, the internal check that finds potential simple match patterns bailed out here.
2017-04-09 17:27:46 +02:00
633ed23c0d
Fix Cppcheck warnings about mismatching function argument names
2017-04-01 09:31:27 +02:00
cc3ef7bbe8
Fix so array access out of bounds for external arrays are detected again
2017-03-30 10:14:17 +02:00
3c8f5b85ae
Refactorization: Allocate Token::_values (ValueFlow information) dynamically, reducing size of each token by around 10%
2017-03-27 18:48:34 +02:00
2938278f00
Refactorization: Store minsizes in vector instead of list which has less overhead
2017-03-27 17:53:43 +02:00
63d39390b4
checkbufferoverrun.cpp: refactorizations
2017-03-27 16:09:51 +02:00
83b1e1c329
CheckBufferOverrun: Refactorizations
...
- Improved/Optimized conditions in checkBufferAllocatedWithStrlen()
- Avoid copying strings for checkScope()
2017-03-27 11:48:34 +02:00
680828788b
Fixed false negative in CheckBufferOverrun::checkInsecureCmdLineArgs(), removed redundant tests
2017-03-27 11:30:07 +02:00
171e1b8244
Fixed false negatives in CheckBufferOverrun::arrayIndexThenCheck()
2017-03-27 11:07:49 +02:00
6c71d74563
Cleanup: There is no need to clear a string directly after its creation.
2017-01-16 20:10:28 +01:00
f0d91fb74b
Fixed #7869 (False positive: Array index out of bounds)
2016-12-20 22:01:19 +01:00
f5ad7482a8
CheckBufferOverrun: Skip warnings about array index out of bounds in unions. Theoretically, the array is at least as large as the biggest union member.
2016-12-18 22:10:30 +01:00
cfac3b457d
Several small refactorizations
2016-12-06 22:12:02 +01:00
57b57428c2
Fix some typos in comments (found by codespell)
...
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-11-27 11:40:42 +01:00
a61f4e9c94
Fixed #7831 (false-positive: terminateStrncpy)
2016-11-24 07:04:58 +01:00
4732667488
ValueFlow: allow more value types
2016-11-13 22:33:39 +01:00
9ff3e85899
Added --cppcheck-build-dir flag
2016-10-29 12:18:11 +02:00
499e52c976
astyle formatting
...
[ci skip]
2016-08-15 18:04:55 +02:00
41dee04e90
CWE mapping of assignBoolToFloat, strncatUsage, sizeArgumentAsChar, terminateStrncpy, bufferNotZeroTerminated, negativeArraySize, noExplicitConstructor, virtualDestructor
2016-08-14 18:23:41 +01:00
55b3f0bf38
Fixed #752 (SymbolDatabase: Does not match function if redundant keywords mismatch (C++))
2016-08-04 09:06:32 +02:00
3f4fe8f578
Refactorized CheckBufferOverrun:
...
- Removed redundant code
- Apply non-simplified checking in test suite
2016-07-27 17:28:43 +02:00
9a6569fde1
Always set ErrorMessage::file0 to ensure that the source file that cppcheck is checking when an error occurs can be identified
...
Removed unused function and unused includes from preprocessor.h/cpp
2016-07-26 16:28:40 +02:00
bae81fba05
Silent clang -Wshadow warning. ( #812 )
...
Add an optional extended description…
2016-07-09 19:07:58 +02:00
44a19b527e
Use ValueFlow and SymbolDatabase to detect buffer overflows with new and malloc, improving support for enums ( #7576 )
2016-07-08 20:53:08 +02:00
644a216394
Fixed two false positives related to char arrays initialized by a literal:
...
- Run check for writing to string literals on non-simplified token list (#7283 )
- Run buffer overrun checking for string literals on non-simplified token list (https://sourceforge.net/p/cppcheck/discussion/general/thread/2c33dfc5/ )
2016-07-07 19:38:15 +02:00
0f11007c19
Fixed #7083 (false positive: typedef and initialization with strings)
2016-06-21 22:42:46 +02:00
8c0eab3eb3
Optimization: Improved performance of CheckBufferOverrun::checkScope() when dealing with a large number of arrays ( #5975 )
...
-> checking time decreases from 1010s to 50s on the code snippet in #5975
-> Dropped a garbage code unit test
2016-05-25 14:42:00 +02:00
728d4242dc
Refactorizations in CheckBufferOverrun:
...
- Improved performance of CheckBufferOverrun::checkScope()
- Made some patterns less restrictive
2016-05-25 11:50:34 +02:00
d3645d874e
Mapped toomanyconfigs ,AssignmentAddressToInteger
...
,AssignmentIntegerToAddress ,CastIntegerToAddressAtReturn
,CastAddressToIntegerAtReturn ,assertWithSideEffect ,assignmentInAssert
,uselessAssignmentArg ,uselessAssignmentPtrArg
,comparisonOfFuncReturningBoolError
,comparisonOfTwoFuncsReturningBoolError ,comparisonOfBoolWithBoolError
,incrementboolean ,comparisonOfBoolWithInt ,compareBoolExpressionWithInt
,negativeIndex ,pointerOutOfBounds ,arrayIndexThenCheck
,possibleBufferAccessOutOfBounds ,argumentSize
,arrayIndexOutOfBoundsCond ,noConstructor ,copyCtorPointerCopying
,noCopyConstructor ,uninitMemberVar ,operatorEqVarError
,unusedPrivateFunction ,memsetClassFloat ,mallocOnClassWarning
,operatorEq ,thisSubtraction ,operatorEqRetRefThis ,operatorEqToSelf
,useInitializationList ,duplInheritedMember ,assignIfError
,comparisonError ,multiCondition ,mismatchingBitAnd
,oppositeInnerCondition ,incorrectLogicOperator ,redundantCondition
,moduloAlwaysTrueFalse to their CWEs ids.
2016-02-26 23:53:52 +00:00
cef6b35bb8
Improve MAXTIME handling
2016-02-11 16:10:52 +01:00
5e10e680da
CWE: refactoring. use constants instead of magic numbers.
2016-01-25 20:01:48 +01:00
5ce69da02d
Mapped 26 errors to their CWEs ID.
2016-01-24 20:53:05 +00:00
659cd96b03
Fixed #7209 (False positive: Array index used before limits check reported in sizeof)
2016-01-24 14:06:02 +01:00
afe659cc88
This variable type looks very suspicious
2016-01-18 09:52:35 +03:00
bb6880919c
CWE mapping
2016-01-15 17:07:14 +01:00
26788a1dc1
Remove repeated code, better variable name
2016-01-15 17:20:40 +03:00
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
5cba4ac602
Omit unneeded deep copy
2015-12-23 10:32:59 +03:00
155ccecf2f
Drop useless braces
2015-12-22 10:31:49 +03:00
32e2fb2f78
Refactorization: Prefer Token::simpleMatch over Token::Match also for non-const patterns.
2015-12-03 13:04:55 +01:00
9c3f25603e
CheckBufferOverrun: Remove old checking of strings and use new ValueFlow-based checking instead ( #6973 )
2015-11-30 16:36:52 +01:00
ac17541ca9
Refactorizations:
...
- Fixed a few more MSVC warnings by using correct types
- Store severity as enum instead of string in Settings::Rule
2015-11-28 12:30:21 +01:00
6b124a37d8
Cleanup some casts
2015-11-28 10:11:07 +01:00
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
5074c11b53
CheckBufferOverrun: Fixed FP when accessing string that contains '\0'. Refactoring address-of.
2015-11-09 10:30:39 +01:00
ef5be435c7
Fixed #7113 (False positive arrayIndexOutOfBounds - using pointer alias with cast)
2015-11-08 17:21:32 +01:00
fc564d779e
Fixed #7112 (crash: CheckBufferOverrun::checkGlobalAndLocalVariable (invalid code))
2015-11-08 14:21:12 +01:00
48da1d5396
Refactoring CheckBufferOverrun
2015-11-08 12:39:08 +01:00
7d6e1974eb
Fixed #7104 (False positive arrayIndexOutOfBounds)
2015-11-08 09:30:23 +01:00
35ed902e3f
Try to fix crash when using getMaxValue()
2015-11-07 19:59:48 +01:00
32627dc558
try to fix internal errors detected by Travis
2015-11-07 19:47:30 +01:00
9c7271a5e9
CheckBufferOverrun: The simplifyKnownVariables() has been reduced, use ValueFlow instead
2015-11-07 18:12:01 +01:00
d0ab3aea70
CheckBufferOverrun: Minor fixes for strings
2015-11-07 15:05:56 +01:00
be7bca385d
avoid some fixes for noisy signedness warnings
2015-10-11 12:50:46 +02:00
139ead15ef
Merge overlapping patterns
2015-09-01 16:17:17 +03:00
ab8afec3eb
Refactorizations:
...
- Avoid unnecessary loop iterations
- Avoid unnecessary condition checking
- Reduced code duplication in symboldatabase.cpp
2015-08-16 14:23:07 +02:00
4d80df2f4a
Added pointer to Type to Token (similar to Token::Variable() and Token::function()):
...
- Accessible via Token::type()
- Renamed former Token::type() to Token::tokType()
- Removed SymbolDatabase::isClassOrStruct()
2015-08-15 11:19:21 +02:00
6790d91fbb
Improve error messages for conditional values. make valueFlowSwitchVariable values conditional that depend on the case. Partial fix for #6884 .
2015-07-29 19:54:57 +02:00
c5bbea2994
Fixed #6816 (FP: buffer overflow, checkminsizes of array with string value)
2015-07-27 16:39:41 +02:00
fef251ac76
negative array size: fixed noise when array is not vla
2015-07-04 09:42:42 +02:00
11538c84f6
Refactoring: Distinguish between C and C++ code
...
Refactoring: Replace CheckNonReentrantFunctions::initNonReentrantFunctions by static initialization
2015-06-29 21:17:15 +02:00
b8e08ca5d8
Code cleanup.
2015-06-28 19:27:23 +02:00
7ff4d10c43
Astyle formatting, no functional changes.
2015-06-28 19:25:13 +02:00
5814c3b84c
Fix some compiler warnings with VS
...
Minor refactoring on Windows SEH code.
2015-06-28 19:20:16 +02:00
0b225fa02f
2nd attempt to fix crash in CheckUnusedFunctions::check. CheckBufferOverrun::checkBufferAllocatedWithStrlen: Don't check for 'new' in C code.
2015-06-28 18:34:09 +02:00
02a3a01eca
Fix compiler warnings
2015-06-28 18:07:31 +02:00
2c73518e29
Fix platform-dependent test result, formatting and crash in whole program analysis
2015-06-28 17:54:48 +02:00
0ca410a4d7
Fixed #6668 (False positive bufferAccessOutOfBounds on sprintf() - regression)
2015-06-07 14:01:20 +02:00
d5d6d7fbb8
Running astyle, no functional changes.
2015-05-29 20:20:05 +02:00
5b347c537b
Fix #6720 and #6721 (Crashes on garbage code)
...
Local fixes to avoid access to NULL-token
2015-05-29 19:30:55 +02:00
3ce4e68ca6
Refactorization: Make use of do-loops to avoid redundant Token::Match() calls
2015-05-13 13:40:40 +02:00
baa1ae079d
New check: negative size in array declaration. Ticket #1760
2015-05-03 15:00:47 +02:00
88f59ad7e8
Partial fix for #6656 (Allow that CWE is mapped for error message)
2015-04-25 17:48:11 +02:00
42f0955e3f
Move more setting checks out of loops and use const bools instead. Reorder a few related checks.
...
Follow up to eedcb6abcb
2015-04-10 14:31:19 +02:00
d735918a8a
Constructor parameter type need not be a number
2015-03-25 14:56:45 +03:00
9398fa810b
Avoid value truncation
2015-03-25 10:39:09 +03:00
c9cdba5865
Remove duplicate check
2015-03-24 15:58:03 +03:00
4fcbe00913
Omit unnecessary operations
2015-03-19 15:14:07 +03:00
2b50e73aa9
Misleading comment
2015-03-14 15:18:29 +03:00
cb4bf73749
Merge pull request #530 from Dmitry-Me/doChecksEarlier
...
Don't run the checks which will be silenced later anyway
2015-02-25 19:22:00 +01:00
938b84903f
Remove redundant casts
2015-02-24 15:15:22 +03:00
24d2b0368f
Don't run the checks which will be silenced later anyway
2015-02-24 10:20:43 +03:00
19d05979ee
Remove C4189 in release builds
2015-02-20 11:00:34 +03:00
6a7605271a
Fix compiler warning. Add interfaces of POSIX passwd.h and pwd.h to posix.cfg
2015-02-18 20:56:44 +01:00
2d21eb07ba
Cleaned up snprintf hardcoding in CheckBufferOverrun
2015-02-13 06:44:38 +01:00
9aad4fa8ca
CheckBufferOverrun: Remove hardcoding for sprintf and rely on cfg configuration instead
2015-02-12 17:29:36 +01:00
a24cbc448a
CheckBufferOverrun: loop through all arguments in checkFunctionCall
2015-02-11 16:24:25 +01:00
d9deabe2ce
TestBufferOverrun: clean up
2015-02-10 17:29:36 +01:00
18b0e14590
Refactorizations: Fixed a pattern in checkbufferoverrun.cpp, simplified one in checkclass.cpp
2015-01-31 12:32:05 +01:00
b2835051df
Refactorization: Renamed Token::Match pattern %var% to %name%, implement new pattern %var% which is true if varId > 0.
2015-01-31 12:32:04 +01:00
03e44d4aa0
CheckMemoryLeakInFunction: Don't treat delete as delete operator for C code
...
Fixed GCC message in checkbufferoverrun.cpp
2015-01-30 20:55:53 +01:00
98e33a189f
Enhanced CheckBufferOverrun:
...
- Fixed bug in library: manual and existing libraries use "size", but library.cpp reads "sizeof" as podtype attribute
- Fixed a couple of bugs in handling unknown size in checkbufferoverrun.cpp, get size from library if available.
2015-01-30 20:27:48 +01:00
e7bb43fc6b
Cache and reuse token pointer
2015-01-27 10:23:58 +03:00
fd01cafb1b
Clean up redundant pointer operations
2015-01-17 16:29:50 +01:00
fd2f93bb80
Two small refactorizations:
...
- Avoid leaving and entering again critical section without doing anything
- Use isPointer() in checkbufferoverrun.cpp instead of string comparison
2015-01-10 21:03:21 +01:00
2375f1c46d
CheckBufferOverrun: Fix FN when multifile checking is used.
2015-01-08 21:01:22 +01:00
6a8293a8b7
Library: More strict matching of functions
2015-01-08 19:31:41 +01:00
ba1c24ee65
Fixed #6422 (symbol database: put function flags into a single flag variable)
2015-01-08 05:45:31 +01:00
6c3b7c1d0e
CheckBufferOverrun: only report warnings when --enable=warning has been used
2015-01-06 15:14:15 +01:00
ff11ba9847
Updated copyright year to 2015
2015-01-03 12:14:58 +01:00
69b31a0743
Fix up extra whitespaces in match patterns
...
Detected by new internal check.
2014-12-30 14:53:43 +01:00
208761f0c3
Fixed #6361 (crash: CheckBufferOverrun)
2014-12-28 10:05:08 +01:00
8b59c39c42
Refactorization: Removed whitespaces at the end of Token::Match patterns
2014-12-27 11:09:54 +01:00
6194a4eefd
Fixed #6357 (Improve check: pointer arithmetic 'p+x' overrun, conditional x)
2014-12-26 09:12:00 +01:00
7ab12cea63
Improved pointer arithmetic message
2014-12-25 14:31:46 +01:00
bc594d52c8
Fixed #6349 (Pointer arithmetic: clarify message)
2014-12-25 10:05:55 +01:00
7cfa54f0e0
Fixed #6353 (False positive: CheckBufferOverrun checking reassigned array function parameter)
2014-12-24 14:03:52 +01:00
90bd38a972
Renamed isCasted to isCast
2014-12-24 10:35:40 +01:00
1b2a23b3fe
Fixed #6350 (Tokenizer::simplifyCast: set Token::isCasted when cast is removed)
2014-12-23 16:16:14 +01:00
e16a934fb3
CheckBufferOverrun: Added comment in code to clarify why severity is portability for pointerOutOfBounds message.
2014-12-22 15:41:46 +01:00
10ae551fef
CheckBufferOverrun: Use portability warning for pointer arithmetic UB. It can be used by intention and usually works as intended.
2014-12-22 10:56:17 +01:00
93ac5a41cd
Fixed #6346 (pointer calculation overflow)
2014-12-22 09:38:00 +01:00
a95e5bff2b
Fixed #6344 (false positive: out of bounds access when array size is unknown)
2014-12-20 18:50:08 +01:00
a1537e1a6e
Fixed #6339 (false negative: array index out of bounds on allocated buffer using valueflow)
2014-12-17 16:23:48 +01:00
c2584aa635
#6303 crash in CheckBufferOverrun. Add check on loop variable in CheckBufferOverrun::checkScope().
2014-12-04 20:49:58 +01:00
0b9d80c95d
Refactoring CheckUnusedFunctions so it uses new infrastructure for multifile analysis
2014-12-02 06:41:18 +01:00
cf3f8c2f38
Refactoring: Replace names with underscores with camelCase names
2014-12-01 16:22:56 +01:00
a002654c47
Reverted refactoring 828417c for now. It caused a major slowdown in the unused functions checking.
2014-11-24 06:37:08 +01:00
828417c934
CheckUnusedFunction: Refactorings to use same infrastructure for whole program analysis as CheckUninitVar and CheckBufferOverrun
2014-11-15 18:44:23 +01:00
de7e9223b8
Fixed #6272 (Improve check: multifile checking in checkbufferoverrun)
2014-11-15 10:43:49 +01:00
71c5d4bd60
Ticket #6232 (cppOut of bounds array access)
...
--HG--
extra : rebase_source : 79ed3533a12a486ea3ed3f09f9bc55b1a4771161
2014-10-21 22:56:53 +02:00
f36aaae732
Fixed a typo in a comment. No functional changes.
2014-09-30 14:54:59 +02:00
68b26f8faa
Fixed subsequent false negatives in CheckBufferOverrun::checkInsecureCmdLineArgs() ( #5835 )
2014-09-29 15:38:33 +02:00
ccd80e3407
#6141 FP: Unknown type is assumed to have size 0.
2014-09-27 21:51:11 +02:00
7c4b9bed9e
Move declaration, run check earlier
2014-09-16 13:34:16 +04:00
e050fba414
Move declaration closer to where it is used
2014-09-11 11:26:35 +04:00
117e45f8af
Merge pull request #395 from Dmitry-Me/fixBufferOverrun
...
Fix potential buffer overrun
2014-09-06 23:03:02 +02:00
7342a81ea7
Minor refactorings. rename token. cleanup if/else.
2014-09-02 16:10:51 +02:00
7f2be2f57c
Fixed template bracket linkage in while loop simplification
...
Ran AStyle
2014-08-23 12:28:54 +02:00
Daniel Marjamäki
Oleksandr Redko
Ayaz Salikhov
Dmitry-Me
Matthias Krüger
Ayaz Salikhov
uburuntu
Simon Martin
PKEuS
orbitcowboy
PKEuS
Stefan Weil
Roberto Martelloni
Robert Reif
Simon Martin
umanamente
Lauri Nurmi
amai2012
Martin Ettl
PKEuS
Thomas Jarosch
Frank Zingsheim
orbitcowboy