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656 Commits

Author SHA1 Message Date
Oliver Stöneberg
37bc0483a4
made check.h less heavy (#2633) 2020-05-23 07:16:49 +02:00
Daniel Marjamäki
08ddd84780 Update copyright year 2020-05-10 11:16:32 +02:00
Daniel Marjamäki
3e0218299b Revert "Update copyright year" 
This reverts commit 6eec6c4bd53d42e3a1179fd3a8a7dae5a43d4d50.
 2020-05-10 11:13:05 +02:00
Daniel Marjamäki
6eec6c4bd5 Update copyright year 2020-05-10 11:11:34 +02:00
Oliver Stöneberg
1af959af2c
fixed -Wextra-semi-stmt Clang warnings (#2553) 
* fixed -Wextra-semi-stmt Clang warnings

* adjusted REDIRECT macro to require a semicolon

* testmathlib.cpp: rolled back accidental change
 2020-04-21 17:27:51 +02:00
Oliver Stöneberg
2c1e36e63e
cleaned up includes based on include-what-you-use (#2600) 
* cleaned up includes based on include-what-you-use

* check.h: trying to work around Visual Studio 2012 bug

* fixed Visual Studio compilation
 2020-04-13 13:44:48 +02:00
Paul Fultz II
3b20684aca
Fix issue 9360: False positive: arrayIndexOutOfBounds when function is called with different array sizes (#2541) 2020-02-17 10:31:08 +01:00
Daniel Marjamäki
84bb024662 Refactoring; Reuse variable typeSize 2020-01-19 09:17:38 +01:00
Daniel Marjamäki
cefd7fb33f Fix testrunner 2020-01-18 12:29:03 +01:00
Daniel Marjamäki
9ffb657c1a Fixed #8597 (False positive - Array index is used before limits check.) 2019-12-20 09:46:01 +01:00
Daniel Marjamäki
fcc5fad3ed Fixed #9113 (false positive: (error) Buffer is accessed out of bounds) 2019-11-10 16:42:48 +01:00
Rikard Falkeborn
73a569be97 TestBufferOverRun: Handle string literals (#2287) 2019-10-21 07:11:22 +02:00
Rikard Falkeborn
5c061c1c12 Set correct type and size of string and char literals (#2275) 
* Set correct type and size of string and char literals

Use that string and char literal tokens store the prefix. This makes
it possible to distinghuish between different type of string literals
(i.e., utf8 encoded strings, utf16, wide strings, etc) which have
different type.

When the tokens holding the string and character values have the correct
type, it is possible to improve Token::getStrSize() to give the correct
result for all string types. Previously, it would return the number of
characters in the string, i.e., it would give the wrong size unless
the type of the string was char*.

Since strings now can have different size (in number of bytes) and
length (in number of elements), add a new helper function that returns
the number of characters. Checkers have been updated to use the correct
functions.

Having the size makes it possible to find more problems with prefixed
strings, and to reduce false positives, for example in the buffer
overflow checker.

Also, improve the stringLiteralWrite error message to also print the
prefix of the string (if there is one).

* Add comment and update string length
 2019-10-20 07:11:57 +02:00
Paul Fultz II
6b6553e320 Dont warn for arrays that are containers (#2240) 2019-10-05 16:14:30 +02:00
Oliver Stöneberg
de9f489b08 use range loops / constness (#2181) 
* use range loops / constness

* platform.cpp: avoid shadowed variable
 2019-09-19 20:29:33 +02:00
Daniel Marjamäki
32eda27391 Refactoring: Use enum class 2019-07-16 10:51:26 +02:00
Daniel Marjamäki
1888b39314 Use 'nonneg' instead of 'unsigned' in checkbufferoverrun 2019-07-16 07:59:35 +02:00
Paul Fultz II
f75c15af56 Fix issue 6821: New check: access heap/stack data using address of variable 
This fixes errors with:

```cpp
int f() {
    int i;
    return (&i)[1];
}
```

It uses the lifetime analysis to detect the issues.
 2019-05-31 12:24:31 +02:00
Daniel Marjamäki
6da42a3d63 Fixed #9112 (false positive: (error) Array index out of bounds; buffer 'x' is accessed at offset n.) 2019-05-01 13:00:14 +02:00
Daniel Marjamäki
74fad6ce05 Modernizing; Use std::accumulate instead of for loop 2019-04-28 11:25:43 +02:00
Daniel Marjamäki
9c5d24c551 Modernizing: Use std::accumulate instead of for loop 2019-04-28 11:17:11 +02:00
Daniel Marjamäki
9d72e24edb Refactoring; Use stl algorithm instead of for loop 2019-04-28 10:30:20 +02:00
Daniel Marjamäki
f503386666 Refactoring; replace for loop with std::find_if 2019-04-28 10:07:11 +02:00
Rikard Falkeborn
d23e987941 Fix CheckInternal warnings (#1790) 2019-04-06 06:55:46 +02:00
Daniel Marjamäki
de4f57ec0f Buffer overflow: Add CTU checking for pointer arithmetic overflows 2019-04-03 06:43:56 +02:00
Daniel Marjamäki
c5807459f9 CheckBufferOverrun: Add check for pointer arithmetics 2019-03-31 09:00:52 +02:00
Daniel Marjamäki
b5a285319c Fixed #9073 (Segmentation fault in Token::isUnaryOp() with ode) 2019-03-29 19:37:23 +01:00
Daniel Marjamäki
18aa968a7a Astyle formatting 2019-03-23 19:03:57 +01:00
Daniel Marjamäki
5126e4b1af Try to fix Visual Studio compiler error 2019-03-23 19:02:05 +01:00
Daniel Marjamäki
d27a4ad82e CheckBufferOverrun: Fix ctu checking 2019-03-23 15:26:13 +01:00
Daniel Marjamäki
a135683d2f Refactoring; Renamed CWE786 and CWE788 2019-03-23 08:41:20 +01:00
Daniel Marjamäki
15fc9a622d CheckBufferOverrun: Add CTU analysis 2019-03-23 08:36:10 +01:00
Daniel Marjamäki
031362ae01 CheckBufferOverrun: Fix false positive 2019-03-19 21:07:08 +01:00
Daniel Marjamäki
6cbe818f1a Fix uninitialized variable usage 2019-03-19 13:17:27 +01:00
Daniel Marjamäki
a0e58f0039 Revert "Revert "CheckBufferOverrun: Handle multidimensional arrays"" 
This reverts commit 9d1755f449a75d87bab9fb62b4729a4d5c479889.
 2019-03-19 13:16:22 +01:00
Daniel Marjamäki
9d1755f449 Revert "CheckBufferOverrun: Handle multidimensional arrays" 
This reverts commit e98a4a6f1475db03473d544d576827e49f9a9575.
 2019-03-19 13:13:29 +01:00
Daniel Marjamäki
e98a4a6f14 CheckBufferOverrun: Handle multidimensional arrays 2019-03-19 09:29:32 +01:00
Daniel Marjamäki
b53a2e5dc4 CheckBufferOverrun: restore minsize code 2019-03-17 20:34:49 +01:00
Daniel Marjamäki
03f8535c71 Better multiline warning when there is buffer overflow 2019-03-17 20:12:02 +01:00
Daniel Marjamäki
3c85d8a8ac ValueFlow: Better info for buffer size values 2019-03-17 19:02:36 +01:00
Sebastian
19e9e42dd7
Library: Enhance minsize configuration and allow simple values. (#1736) 
Some POSIX and Windows functions require buffers of at least some
specific size. This is now possible to configure via for example this
minsize configuration: `<minsize type="value" value="26"/>`.
The range for valid buffer size values is 1 to LLONG_MAX
(9223372036854775807)
 2019-03-17 14:22:26 +01:00
Daniel Marjamäki
0771929518 Buffer overflow: Handling of dynamically allocated buffer 2019-03-17 13:40:56 +01:00
Daniel Marjamäki
92f4113b59 Array index: Checking array index out of bounds for dynamic buffers 2019-03-17 13:09:15 +01:00
Daniel Marjamäki
2ecfae0a98 CheckBufferOverrun: the bufferNotZeroTerminated did not work well, hide that for now 2019-03-13 06:45:01 +01:00
Daniel Marjamäki
81a1d744c6 CheckBufferOverrun: fix FP for array definition of static class member 2019-03-13 06:39:09 +01:00
Daniel Marjamäki
67e8b99c2c CheckBufferOverrun: Readd a check for strncpy/memcpy/etc 2019-03-12 21:15:26 +01:00
Daniel Marjamäki
0c08f6db6c CheckBufferOverrun: Use AST to lookup array 2019-03-12 06:46:38 +01:00
Daniel Marjamäki
4ababeb704 Fix 'make checkcfg' 2019-03-11 21:39:39 +01:00
Daniel Marjamäki
ea23033a65 Array index out of bounds: Fix false positive 2019-03-11 20:33:08 +01:00
Daniel Marjamäki
17253cdb55 buffer overflow: Fix false positive 2019-03-11 19:40:17 +01:00