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cppcheck/test/cfg/windows.cpp

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// Test library configuration for windows.cfg
//
// Usage:
// $ cppcheck --check-library --library=windows --enable=style,information --inconclusive --error-exitcode=1 --disable=missingInclude --inline-suppr test/cfg/windows.cpp
// =>
// No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0
//
#include <Windows.h>
#include <WinCon.h>
#include <cstdio>
#include <direct.h>
#include <cstdlib>
#include <ctime>
#include <memory.h>
#include <mbstring.h>
#include <wchar.h>
#include <atlstr.h>
#include <string>
void resourceLeak_OpenThread(const DWORD dwDesiredAccess, const BOOL bInheritHandle, const DWORD dwThreadId)
{
HANDLE proc = OpenThread(dwDesiredAccess, bInheritHandle, dwThreadId);
if (proc != INVALID_HANDLE_VALUE) {}
// cppcheck-suppress resourceLeak
}
void resourceLeak_OpenProcess(const DWORD dwDesiredAccess, const BOOL bInheritHandle, const DWORD dwProcessId)
{
HANDLE proc = OpenProcess(dwDesiredAccess, bInheritHandle, dwProcessId);
if (proc != INVALID_HANDLE_VALUE) {}
// cppcheck-suppress resourceLeak
}
/// https://learn.microsoft.com/en-us/windows/console/flushconsoleinputbuffer
BOOL unreachableCode_FlushConsoleInputBuffer(int &val)
{
const BOOL retVal = FlushConsoleInputBuffer(GetStdHandle(STD_INPUT_HANDLE));
// still reachable after call FlushConsoleInputBuffer()
val = 42;
return retVal;
}
/// https://learn.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-getmodulefilenamew
std::string constVariable_GetModuleFileName(void) {
char path[42];
if (GetModuleFileNameA(NULL, path, sizeof(path))==0)
return std::string();
return std::string{path};
}
int stringCompare_mbscmp(const unsigned char *string1, const unsigned char *string2)
{
// cppcheck-suppress stringCompare
(void) _mbscmp(string1, string1);
// cppcheck-suppress staticStringCompare
(void) _mbscmp("x", "x");
return _mbscmp(string1, string2);
}
int stringCompare_mbscmp_l(const unsigned char *string1, const unsigned char *string2, _locale_t locale)
{
// cppcheck-suppress stringCompare
(void) _mbscmp_l(string1, string1, locale);
// cppcheck-suppress staticStringCompare
(void) _mbscmp_l("x", "x", locale);
return _mbscmp_l(string1, string2, locale);
}
int ignoredReturnValue__wtoi_l(const wchar_t *str, _locale_t locale)
{
// cppcheck-suppress ignoredReturnValue
_wtoi_l(str,locale);
return _wtoi_l(str,locale);
}
int ignoredReturnValue__atoi_l(const char *str, _locale_t locale)
{
// cppcheck-suppress ignoredReturnValue
_atoi_l(str,locale);
return _atoi_l(str,locale);
}
void invalidFunctionArg__fseeki64(FILE* stream, __int64 offset, int origin)
{
// cppcheck-suppress invalidFunctionArg
(void)_fseeki64(stream, offset, -1);
// cppcheck-suppress invalidFunctionArg
(void)_fseeki64(stream, offset, 3);
// cppcheck-suppress invalidFunctionArg
(void)_fseeki64(stream, offset, 42+SEEK_SET);
// cppcheck-suppress invalidFunctionArg
(void)_fseeki64(stream, offset, SEEK_SET+42);
// No warning is expected for
(void)_fseeki64(stream, offset, origin);
(void)_fseeki64(stream, offset, SEEK_SET);
(void)_fseeki64(stream, offset, SEEK_CUR);
(void)_fseeki64(stream, offset, SEEK_END);
}
void invalidFunctionArgBool__fseeki64(FILE* stream, __int64 offset, int origin)
{
// cppcheck-suppress invalidFunctionArgBool
(void)_fseeki64(stream, offset, true);
// cppcheck-suppress invalidFunctionArgBool
(void)_fseeki64(stream, offset, false);
}
unsigned char * overlappingWriteFunction__mbscat(unsigned char *src, unsigned char *dest)
{
// No warning shall be shown:
(void)_mbscat(dest, src);
// cppcheck-suppress overlappingWriteFunction
return _mbscat(src, src);
}
unsigned char * overlappingWriteFunction__memccpy(const unsigned char *src, unsigned char *dest, int c, size_t count)
{
// No warning shall be shown:
(void)_memccpy(dest, src, c, count);
(void)_memccpy(dest, src, 42, count);
// cppcheck-suppress overlappingWriteFunction
(void) _memccpy(dest, dest, c, 4);
// cppcheck-suppress overlappingWriteFunction
return _memccpy(dest, dest+3, c, 4);
}
unsigned char * overlappingWriteFunction__mbscpy(unsigned char *src, unsigned char *dest)
{
// No warning shall be shown:
(void)_mbscpy(dest, src);
// cppcheck-suppress overlappingWriteFunction
return _mbscpy(src, src);
}
void overlappingWriteFunction__swab(char *src, char *dest, int n)
{
// No warning shall be shown:
_swab(dest, src, n);
// cppcheck-suppress overlappingWriteFunction
_swab(src, src+3, 4);
}
SYSTEM_INFO uninitvar_GetSystemInfo(char * envstr)
{
// No warning is expected
SYSTEM_INFO SystemInfo;
GetSystemInfo(&SystemInfo);
return SystemInfo;
}
void uninitvar__putenv(const char * envstr)
{
// No warning is expected
(void)_putenv(envstr);
const char * p;
// cppcheck-suppress uninitvar
(void)_putenv(p);
}
void nullPointer__putenv(const char * envstr)
{
// No warning is expected
(void)_putenv(envstr);
const char * p=NULL;
// cppcheck-suppress nullPointer
(void)_putenv(p);
}
void invalidFunctionArg__getcwd(char * buffer)
{
// Passing NULL as the buffer forces getcwd to allocate
// memory for the path, which allows the code to support file paths
// longer than _MAX_PATH, which are supported by NTFS.
if ((buffer = _getcwd(NULL, 0)) == NULL) {
return;
}
free(buffer);
}
// DWORD GetPrivateProfileString(
// [in] LPCTSTR lpAppName,
// [in] LPCTSTR lpKeyName,
// [in] LPCTSTR lpDefault,
// [out] LPTSTR lpReturnedString,
// [in] DWORD nSize,
// [in] LPCTSTR lpFileName)
void nullPointer_GetPrivateProfileString(LPCTSTR lpAppName,
LPCTSTR lpKeyName,
LPCTSTR lpDefault,
LPTSTR lpReturnedString,
DWORD nSize,
LPCTSTR lpFileName)
{
// No warning is expected
(void)GetPrivateProfileString(lpAppName, lpKeyName, lpDefault, lpReturnedString, nSize, lpFileName);
// No warning is expected for 1st arg as nullptr
(void)GetPrivateProfileString(nullptr, lpKeyName, lpDefault, lpReturnedString, nSize, lpFileName);
// No warning is expected for 2nd arg as nullptr
(void)GetPrivateProfileString(lpAppName, nullptr, lpDefault, lpReturnedString, nSize, lpFileName);
}
void nullPointer__get_timezone(long *sec)
{
// No warning is expected
(void)_get_timezone(sec);
long *pSec = NULL;
// cppcheck-suppress nullPointer
(void)_get_timezone(pSec);
}
void nullPointer__get_daylight(int *h)
{
// No warning is expected
(void)_get_daylight(h);
int *pHours = NULL;
// cppcheck-suppress nullPointer
(void)_get_daylight(pHours);
}
void validCode()
{
DWORD dwordInit = 0;
WORD wordInit = 0;
BYTE byteInit = 0;
// Valid Semaphore usage, no leaks, valid arguments
HANDLE hSemaphore1;
hSemaphore1 = CreateSemaphore(NULL, 0, 1, NULL);
CloseHandle(hSemaphore1);
HANDLE hSemaphore2;
hSemaphore2 = CreateSemaphoreEx(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
CloseHandle(hSemaphore2);
HANDLE hSemaphore3;
hSemaphore3 = OpenSemaphore(SEMAPHORE_ALL_ACCESS, TRUE, "sem");
CloseHandle(hSemaphore3);
// Valid lstrcat usage, but with warning because it is deprecated
char buf[30] = "hello world";
// cppcheck-suppress lstrcatCalled
lstrcat(buf, "test");
// cppcheck-suppress strlwrCalled
strlwr(buf);
// cppcheck-suppress struprCalled
strupr(buf);
// Valid Mutex usage, no leaks, valid arguments
HANDLE hMutex1;
hMutex1 = CreateMutex(NULL, TRUE, NULL);
if (hMutex1) {
ReleaseMutex(hMutex);
}
CloseHandle(hMutex1);
HANDLE hMutex2;
hMutex2 = CreateMutexEx(NULL, NULL, 0, MUTEX_ALL_ACCESS);
CloseHandle(hMutex2);
HANDLE hMutex3;
hMutex3 = OpenMutex(MUTEX_ALL_ACCESS, FALSE, "sem");
CloseHandle(hMutex3);
// Valid Module usage, no leaks, valid arguments
HMODULE hModule = GetModuleHandle(L"My.dll");
FreeLibrary(hModule);
hModule = GetModuleHandle(TEXT("somedll"));
FreeLibrary(hModule);
hModule = GetModuleHandle(NULL);
FreeLibrary(hModule);
// Valid Event usage, no leaks, valid arguments
HANDLE event;
event = CreateEvent(NULL, FALSE, FALSE, NULL);
if (NULL != event) {
SetEvent(event);
CloseHandle(event);
}
event = OpenEvent(EVENT_ALL_ACCESS, FALSE, L"testevent");
if (NULL != event) {
PulseEvent(event);
SetEvent(event);
CloseHandle(event);
}
event = CreateEventEx(NULL, L"testevent3", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
if (NULL != event) {
ResetEvent(event);
CloseHandle(event);
}
// cppcheck-suppress unusedAllocatedMemory
void *pMem1 = _malloca(1);
_freea(pMem1);
// Memory from _alloca must not be freed
// cppcheck-suppress _allocaCalled
void *pMem2 = _alloca(10);
memset(pMem2, 0, 10);
SYSTEMTIME st;
GetSystemTime(&st);
DWORD lastError = GetLastError();
SetLastError(lastError);
PSID pEveryoneSID = NULL;
SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
AllocateAndInitializeSid(&SIDAuthWorld, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &pEveryoneSID);
FreeSid(pEveryoneSID);
LPVOID pMem = HeapAlloc(GetProcessHeap(), 0, 10);
pMem = HeapReAlloc(GetProcessHeap(), 0, pMem, 0);
HeapFree(GetProcessHeap(), 0, pMem);
char bufC[50];
sprintf_s(bufC, "Hello");
printf("%s", bufC);
sprintf_s(bufC, "%s", "test");
printf("%s", bufC);
sprintf_s(bufC, _countof(bufC), "%s", "test");
printf("%s", bufC);
wchar_t bufWC[50];
swprintf_s(bufWC, L"Hello");
wprintf(L"%s\n", bufWC);
swprintf_s(bufWC, L"%s %d", L"swprintf_s", 3);
wprintf(L"%s\n", bufWC);
swprintf_s(bufWC, _countof(bufWC), L"%s %d", L"swprintf_s", 6);
wprintf(L"%s\n", bufWC);
TCHAR bufTC[50];
_stprintf(bufTC, TEXT("Hello"));
_tprintf(TEXT("%s"), bufTC);
_stprintf(bufTC, TEXT("%d"), 1);
_tprintf(TEXT("%s"), bufTC);
_stprintf(bufTC, _countof(bufTC), TEXT("%d"), 2);
_tprintf(TEXT("%s"), bufTC);
GetUserName(NULL, &dwordInit);
dwordInit = 10;
GetUserName(bufTC, _countof(bufTC));
WSADATA wsaData = {0};
WSAStartup(2, &wsaData);
SOCKET sock = socket(1, 2, 3);
u_long ulongInit = 0;
ioctlsocket(sock, FIONBIO, &ulongInit);
if (sock != INVALID_SOCKET) {
closesocket(sock);
}
WSACleanup();
wordInit = MAKEWORD(1, 2);
// cppcheck-suppress redundantAssignment
dwordInit = MAKELONG(1, 2);
// cppcheck-suppress redundantAssignment
wordInit = LOWORD(dwordInit);
byteInit = LOBYTE(wordInit);
wordInit = HIWORD(dwordInit);
// cppcheck-suppress redundantAssignment
byteInit = HIBYTE(wordInit);
// cppcheck-suppress knownConditionTrueFalse
if (byteInit) {}
bool boolVar;
uint8_t byteBuf[5] = {0};
uint8_t byteBuf2[10] = {0};
boolVar = RtlEqualMemory(byteBuf, byteBuf2, sizeof(byteBuf));
if (boolVar) {}
boolVar = RtlCompareMemory(byteBuf, byteBuf2, sizeof(byteBuf));
if (boolVar) {}
RtlMoveMemory(byteBuf, byteBuf2, sizeof(byteBuf));
RtlCopyMemory(byteBuf, byteBuf2, sizeof(byteBuf));
RtlZeroMemory(byteBuf, sizeof(byteBuf));
ZeroMemory(byteBuf, sizeof(byteBuf));
RtlSecureZeroMemory(byteBuf, sizeof(byteBuf));
SecureZeroMemory(byteBuf, sizeof(byteBuf));
RtlFillMemory(byteBuf, sizeof(byteBuf), 0xff);
// cppcheck-suppress [LocalAllocCalled, unusedAllocatedMemory]
HLOCAL pLocalAlloc = LocalAlloc(1, 2);
LocalFree(pLocalAlloc);
// cppcheck-suppress lstrlenCalled
(void)lstrlen(bufTC);
// cppcheck-suppress lstrlenCalled
(void)lstrlen(NULL);
// Intrinsics
__noop();
__noop(1, "test", NULL);
__nop();
// cppcheck-suppress unusedAllocatedMemory
void * pAlloc1 = _aligned_malloc(100, 2);
_aligned_free(pAlloc1);
::PostMessage(nullptr, WM_QUIT, 0, 0);
printf("%zu", __alignof(int));
printf("%zu", _alignof(double));
// Valid Library usage, no leaks, valid arguments
HINSTANCE hInstLib = LoadLibrary(L"My.dll");
FreeLibrary(hInstLib);
hInstLib = LoadLibraryA("My.dll");
FreeLibrary(hInstLib);
hInstLib = LoadLibraryEx(L"My.dll", NULL, 0);
FreeLibrary(hInstLib);
hInstLib = LoadLibraryExW(L"My.dll", NULL, 0);
FreeLibrary(hInstLib);
hInstLib = ::LoadLibrary(L"My.dll");
FreeLibraryAndExitThread(hInstLib, 0); // Does not return! Must be at the end!
}
void bufferAccessOutOfBounds()
{
wchar_t buf[10];
// Verifying _countof macro configuration
// Valid loop over array
for (size_t i = 0; i < _countof(buf); ++i) {
buf[i] = L'\0';
}
// Wrong loop over array accessing one element past the end
for (size_t i = 0; i <= _countof(buf); ++i) {
// cppcheck-suppress arrayIndexOutOfBounds
buf[i] = L'\0';
}
uint8_t byteBuf[5] = {0};
uint8_t byteBuf2[10] = {0};
// cppcheck-suppress ignoredReturnValue
// cppcheck-suppress bufferAccessOutOfBounds
RtlEqualMemory(byteBuf, byteBuf2, 20);
// cppcheck-suppress ignoredReturnValue
// cppcheck-suppress bufferAccessOutOfBounds
RtlCompareMemory(byteBuf, byteBuf2, 20);
// cppcheck-suppress bufferAccessOutOfBounds
RtlMoveMemory(byteBuf, byteBuf2, 20);
// TODO cppcheck-suppress redundantCopy
// cppcheck-suppress bufferAccessOutOfBounds
MoveMemory(byteBuf, byteBuf2, 20);
// TODO cppcheck-suppress redundantCopy
// cppcheck-suppress bufferAccessOutOfBounds
RtlCopyMemory(byteBuf, byteBuf2, 20);
// TODO cppcheck-suppress redundantCopy
// cppcheck-suppress bufferAccessOutOfBounds
CopyMemory(byteBuf, byteBuf2, 20);
// cppcheck-suppress bufferAccessOutOfBounds
RtlZeroMemory(byteBuf, sizeof(byteBuf)+1);
// cppcheck-suppress bufferAccessOutOfBounds
ZeroMemory(byteBuf, sizeof(byteBuf)+1);
// cppcheck-suppress bufferAccessOutOfBounds
RtlSecureZeroMemory(byteBuf, sizeof(byteBuf)+1);
// cppcheck-suppress bufferAccessOutOfBounds
SecureZeroMemory(byteBuf, sizeof(byteBuf)+1);
// cppcheck-suppress bufferAccessOutOfBounds
RtlFillMemory(byteBuf, sizeof(byteBuf)+1, 0x01);
// cppcheck-suppress bufferAccessOutOfBounds
FillMemory(byteBuf, sizeof(byteBuf)+1, 0x01);
char * pAlloc1 = _malloca(32);
memset(pAlloc1, 0, 32);
// cppcheck-suppress bufferAccessOutOfBounds
memset(pAlloc1, 0, 33);
_freea(pAlloc1);
}
void mismatchAllocDealloc()
{
char * pChar = _aligned_malloc(100, 2);
// cppcheck-suppress mismatchAllocDealloc
free(pChar);
// cppcheck-suppress unusedAllocatedMemory
pChar = _malloca(32);
// cppcheck-suppress mismatchAllocDealloc
_aligned_free(pChar);
}
void nullPointer()
{
HANDLE hSemaphore;
// cppcheck-suppress nullPointer
hSemaphore = OpenSemaphore(SEMAPHORE_ALL_ACCESS, FALSE, NULL);
CloseHandle(hSemaphore);
// cppcheck-suppress lstrcatCalled
// cppcheck-suppress nullPointer
lstrcat(NULL, "test");
char buf[10] = "\0";
// cppcheck-suppress lstrcatCalled
// cppcheck-suppress nullPointer
lstrcat(buf, NULL);
HANDLE hMutex;
// cppcheck-suppress nullPointer
hMutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, NULL);
CloseHandle(hMutex);
//Incorrect: 1. parameter, must not be null
// cppcheck-suppress nullPointer
FARPROC pAddr = GetProcAddress(NULL, "name");
(void)pAddr;
HMODULE * phModule = NULL;
// cppcheck-suppress nullPointer
GetModuleHandleEx(0, NULL, phModule);
// cppcheck-suppress leakReturnValNotUsed
// cppcheck-suppress nullPointer
OpenEvent(EVENT_ALL_ACCESS, FALSE, NULL);
HANDLE hEvent = NULL;
// cppcheck-suppress nullPointer
PulseEvent(hEvent);
// cppcheck-suppress nullPointer
ResetEvent(hEvent);
// cppcheck-suppress nullPointer
SetEvent(hEvent);
char *str = NULL;
// cppcheck-suppress strlwrCalled
// cppcheck-suppress nullPointer
strlwr(str);
// cppcheck-suppress struprCalled
// cppcheck-suppress nullPointer
strupr(str);
// cppcheck-suppress nullPointer
GetSystemTime(NULL);
// cppcheck-suppress nullPointer
GetLocalTime(NULL);
// TODO: error message: arg1 must not be nullptr if variable pointed to by arg2 is not 0
DWORD dwordInit = 10;
GetUserName(NULL, &dwordInit);
TCHAR bufTC[10];
// cppcheck-suppress nullPointer
GetUserName(bufTC, NULL);
SOCKET socketInit = {0};
sockaddr sockaddrUninit;
int intInit = 0;
int *pIntNull = NULL;
char charArray[] = "test";
// cppcheck-suppress nullPointer
WSAStartup(1, NULL);
// cppcheck-suppress nullPointer
bind(socketInit, NULL, 5);
// cppcheck-suppress nullPointer
getpeername(socketInit, NULL, &intInit);
// cppcheck-suppress nullPointer
getpeername(socketInit, &sockaddrUninit, pIntNull);
// cppcheck-suppress nullPointer
getsockopt(sockInit, 1, 2, NULL, &intInit);
// cppcheck-suppress nullPointer
getsockopt(sockInit, 1, 2, charArray, pIntNull);
}
void memleak_malloca()
{
// cppcheck-suppress [unusedAllocatedMemory, unreadVariable, constVariablePointer]
void *pMem = _malloca(10);
// cppcheck-suppress memleak
}
void memleak_AllocateAndInitializeSid()
{
PSID pEveryoneSID = NULL;
SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
AllocateAndInitializeSid(&SIDAuthWorld, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &pEveryoneSID)
// TODO: enable when #6994 is implemented cppcheck-suppress memleak
}
void memleak_HeapAlloc()
{
LPVOID pMem;
pMem = HeapAlloc(GetProcessHeap(), 0, 10);
HeapValidate(GetProcessHeap(), 0, pMem);
// cppcheck-suppress unreadVariable
SIZE_T memSize = HeapSize(GetProcessHeap(), 0, pMem);
// cppcheck-suppress memleak
}
void memleak_LocalAlloc()
{
LPTSTR pszBuf;
// cppcheck-suppress [LocalAllocCalled, cstyleCast]
pszBuf = (LPTSTR)LocalAlloc(LPTR, MAX_PATH*sizeof(TCHAR));
(void)LocalSize(pszBuf);
(void)LocalFlags(pszBuf);
LocalLock(pszBuf);
LocalUnlock(pszBuf);
// cppcheck-suppress memleak
}
void memleak_dupenv_s() // #10646
{
char* pValue;
size_t len;
errno_t err = _dupenv_s(&pValue, &len, "pathext");
if (err) return -1;
printf("pathext = %s\n", pValue);
free(pValue);
err = _dupenv_s(&pValue, &len, "nonexistentvariable");
if (err) return -1;
printf("nonexistentvariable = %s\n", pValue);
// cppcheck-suppress memleak
}
void resourceLeak_CreateSemaphoreA()
{
HANDLE hSemaphore;
// cppcheck-suppress unreadVariable
hSemaphore = CreateSemaphoreA(NULL, 0, 1, "sem1");
// cppcheck-suppress resourceLeak
}
void resourceLeak_CreateSemaphoreEx()
{
HANDLE hSemaphore;
// cppcheck-suppress unreadVariable
hSemaphore = CreateSemaphoreEx(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
// cppcheck-suppress resourceLeak
}
void resourceLeak_OpenSemaphore()
{
HANDLE hSemaphore;
// cppcheck-suppress unreadVariable
hSemaphore = OpenSemaphore(SEMAPHORE_ALL_ACCESS, TRUE, "sem");
// cppcheck-suppress resourceLeak
}
void resourceLeak_CreateMutexA()
{
HANDLE hMutex;
// cppcheck-suppress unreadVariable
hMutex = CreateMutexA(NULL, TRUE, "sem1");
// cppcheck-suppress resourceLeak
}
void resourceLeak_CreateMutexEx()
{
HANDLE hMutex;
// cppcheck-suppress unreadVariable
hMutex = CreateMutexEx(NULL, "sem", 0, MUTEX_ALL_ACCESS);
// cppcheck-suppress resourceLeak
}
void resourceLeak_OpenMutex()
{
HANDLE hMutex;
// cppcheck-suppress unreadVariable
hMutex = OpenMutex(MUTEX_ALL_ACCESS, TRUE, "sem");
// cppcheck-suppress resourceLeak
}
void resourceLeak_LoadLibrary()
{
HINSTANCE hInstLib;
hInstLib = ::LoadLibrary(L"My.dll");
typedef BOOL (WINAPI *fpFunc)();
// cppcheck-suppress unreadVariable
fpFunc pFunc = GetProcAddress(hInstLib, "name");
// cppcheck-suppress resourceLeak
}
void resourceLeak_CreateEvent()
{
HANDLE hEvent;
hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
SetEvent(hEvent);
// cppcheck-suppress resourceLeak
}
void resourceLeak_CreateEventExA()
{
HANDLE hEvent;
// cppcheck-suppress unreadVariable
hEvent = CreateEventExA(NULL, "test", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
// cppcheck-suppress resourceLeak
}
void resourceLeak_OpenEventW()
{
HANDLE hEvent;
// cppcheck-suppress unreadVariable
hEvent = OpenEventW(EVENT_ALL_ACCESS, TRUE, L"testevent");
// cppcheck-suppress resourceLeak
}
void resourceLeak_socket()
{
SOCKET sock;
// cppcheck-suppress unreadVariable
sock = socket(1, 2, 3);
// cppcheck-suppress resourceLeak
}
void ignoredReturnValue()
{
// cppcheck-suppress leakReturnValNotUsed
CreateSemaphoreW(NULL, 0, 1, NULL);
// cppcheck-suppress leakReturnValNotUsed
CreateSemaphoreExA(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
// cppcheck-suppress leakReturnValNotUsed
OpenSemaphoreA(SEMAPHORE_ALL_ACCESS, TRUE, "sem");
// cppcheck-suppress leakReturnValNotUsed
CreateMutexW(NULL, FALSE, NULL);
// cppcheck-suppress leakReturnValNotUsed
CreateMutexExA(NULL, NULL, 1, MUTEX_ALL_ACCESS);
// cppcheck-suppress leakReturnValNotUsed
OpenMutexA(MUTEX_ALL_ACCESS, TRUE, "sem");
// cppcheck-suppress leakReturnValNotUsed
LoadLibrary(L"My.dll");
// cppcheck-suppress leakReturnValNotUsed
LoadLibraryEx(L"My.dll", NULL, 0);
HINSTANCE hInstLib = LoadLibrary(L"My.dll");
// cppcheck-suppress ignoredReturnValue
GetProcAddress(hInstLib, "name");
FreeLibrary(hInstLib);
// cppcheck-suppress leakReturnValNotUsed
CreateEvent(NULL, FALSE, FALSE, NULL);
// cppcheck-suppress leakReturnValNotUsed
OpenEvent(EVENT_ALL_ACCESS, FALSE, L"testevent");
// cppcheck-suppress leakReturnValNotUsed
CreateEventEx(NULL, L"test", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
// cppcheck-suppress leakReturnValNotUsed
_malloca(10);
// cppcheck-suppress ignoredReturnValue
// cppcheck-suppress _allocaCalled
_alloca(5);
// cppcheck-suppress ignoredReturnValue
GetLastError();
// cppcheck-suppress ignoredReturnValue
GetProcessHeap();
// cppcheck-suppress leakReturnValNotUsed
HeapAlloc(GetProcessHeap(), 0, 10);
// cppcheck-suppress leakReturnValNotUsed
HeapReAlloc(GetProcessHeap(), 0, 1, 0);
// cppcheck-suppress leakReturnValNotUsed
socket(1, 2, 3);
// cppcheck-suppress ignoredReturnValue
_fileno(stdio);
// cppcheck-suppress lstrlenCalled
// cppcheck-suppress ignoredReturnValue
lstrlen(TEXT("test"));
}
void invalidFunctionArg()
{
HANDLE hSemaphore;
// cppcheck-suppress invalidFunctionArg
hSemaphore = CreateSemaphore(NULL, 0, 0, NULL);
CloseHandle(hSemaphore);
// cppcheck-suppress invalidFunctionArgBool
hSemaphore = CreateSemaphore(NULL, 0, 1, true);
CloseHandle(hSemaphore);
// cppcheck-suppress invalidFunctionArg
hSemaphore = CreateSemaphoreEx(NULL, 0, 0, NULL, 0, SEMAPHORE_ALL_ACCESS);
CloseHandle(hSemaphore);
// cppcheck-suppress invalidFunctionArg
hSemaphore = CreateSemaphoreEx(NULL, 0, 1, NULL, 1, SEMAPHORE_ALL_ACCESS);
CloseHandle(hSemaphore);
HANDLE hMutex;
// cppcheck-suppress invalidFunctionArgBool
hMutex = CreateMutex(NULL, TRUE, false);
CloseHandle(hMutex);
// cppcheck-suppress invalidFunctionArgBool
hMutex = CreateMutex(NULL, FALSE, true);
CloseHandle(hMutex);
// cppcheck-suppress invalidFunctionArg
hMutex = CreateMutexEx(NULL, NULL, 3, MUTEX_ALL_ACCESS);
CloseHandle(hMutex);
//Incorrect: 2. parameter to LoadLibraryEx() must be NULL
// cppcheck-suppress invalidFunctionArg
HINSTANCE hInstLib = LoadLibraryEx(L"My.dll", 1, 0);
FreeLibrary(hInstLib);
// cppcheck-suppress invalidFunctionArg
void *pMem = _malloca(-1);
_freea(pMem);
// FIXME cppcheck-suppress unreadVariable
// cppcheck-suppress invalidFunctionArg
// cppcheck-suppress _allocaCalled
pMem = _alloca(-5);
}
void uninitvar()
{
// cppcheck-suppress unassignedVariable
HANDLE hSemaphore;
// cppcheck-suppress uninitvar
CloseHandle(hSemaphore);
char buf[10];
// cppcheck-suppress lstrcatCalled
// cppcheck-suppress uninitvar
lstrcat(buf, "test");
buf[0] = '\0';
// cppcheck-suppress constVariable
char buf2[2];
// cppcheck-suppress lstrcatCalled
// cppcheck-suppress uninitvar
lstrcat(buf, buf2);
// cppcheck-suppress unassignedVariable
HANDLE hMutex1, hMutex2;
// cppcheck-suppress uninitvar
ReleaseMutex(hMutex1);
// cppcheck-suppress uninitvar
CloseHandle(hMutex2);
// cppcheck-suppress unassignedVariable
HANDLE hEvent1, hEvent2, hEvent3, hEvent4;
// cppcheck-suppress uninitvar
PulseEvent(hEvent1);
// cppcheck-suppress uninitvar
ResetEvent(hEvent2);
// cppcheck-suppress uninitvar
SetEvent(hEvent3);
// cppcheck-suppress uninitvar
CloseHandle(hEvent4);
char buf_uninit1[10];
char buf_uninit2[10];
// cppcheck-suppress strlwrCalled
// cppcheck-suppress uninitvar
strlwr(buf_uninit1);
// cppcheck-suppress struprCalled
// cppcheck-suppress uninitvar
strupr(buf_uninit2);
DWORD dwordUninit;
// cppcheck-suppress uninitvar
SetLastError(dwordUninit);
DWORD dwordUninit;
// cppcheck-suppress uninitvar
GetUserName(NULL, &dwordUninit);
FILE *pFileUninit;
// cppcheck-suppress uninitvar
// cppcheck-suppress ignoredReturnValue
_fileno(pFileUninit);
}
void unreferencedParameter(int i) {
UNREFERENCED_PARAMETER(i);
}
void errorPrintf()
{
char bufC[50];
// cppcheck-suppress wrongPrintfScanfArgNum
sprintf_s(bufC, _countof(bufC), "%s %d", "sprintf_s");
printf("%s\n", bufC);
// cppcheck-suppress wrongPrintfScanfArgNum
sprintf_s(bufC, "%s %d", "sprintf_s");
printf("%s\n", bufC);
// cppcheck-suppress wrongPrintfScanfArgNum
sprintf_s(bufC, _countof(bufC), "test", 0);
printf("%s\n", bufC);
// cppcheck-suppress wrongPrintfScanfArgNum
sprintf_s(bufC, "test", "sprintf_s");
printf("%s\n", bufC);
// cppcheck-suppress invalidPrintfArgType_s
sprintf_s(bufC, _countof(bufC), "%s", 1);
printf("%s\n", bufC);
// cppcheck-suppress invalidPrintfArgType_s
sprintf_s(bufC, "%s", 1);
printf("%s\n", bufC);
wchar_t bufWC[50];
// cppcheck-suppress wrongPrintfScanfArgNum
swprintf_s(bufWC, _countof(bufWC), L"%s %d", L"swprintf_s");
wprintf(L"%s\n", bufWC);
// cppcheck-suppress wrongPrintfScanfArgNum
swprintf_s(bufWC, L"%s %d", L"swprintf_s");
wprintf(L"%s\n", bufWC);
// cppcheck-suppress wrongPrintfScanfArgNum
swprintf_s(bufWC, _countof(bufWC), L"test", 0);
wprintf(L"%s\n", bufWC);
// cppcheck-suppress wrongPrintfScanfArgNum
swprintf_s(bufWC, L"test", L"swprintf_s");
wprintf(L"%s\n", bufWC);
// cppcheck-suppress invalidPrintfArgType_s
swprintf_s(bufWC, _countof(bufWC), L"%s", 1);
wprintf(L"%s\n", bufWC);
// cppcheck-suppress invalidPrintfArgType_s
swprintf_s(bufWC, L"%s", 1);
wprintf(L"%s\n", bufWC);
TCHAR bufTC[50];
// cppcheck-suppress wrongPrintfScanfArgNum
_stprintf_s(bufTC, _countof(bufTC), TEXT("%s %d"), TEXT("_stprintf_s"));
_tprintf(L"%s\n", bufTC);
// cppcheck-suppress wrongPrintfScanfArgNum
_stprintf_s(bufTC, TEXT("%s %d"), TEXT("_stprintf_s"));
_tprintf(TEXT("%s\n"), bufTC);
// cppcheck-suppress wrongPrintfScanfArgNum
_stprintf_s(bufTC, _countof(bufTC), TEXT("test"), 0);
_tprintf(TEXT("%s\n"), bufTC);
// cppcheck-suppress wrongPrintfScanfArgNum
_stprintf_s(bufTC, TEXT("test"), TEXT("_stprintf_s"));
_tprintf(TEXT("%s\n"), bufTC);
// cppcheck-suppress invalidPrintfArgType_s
_stprintf_s(bufTC, _countof(bufTC), TEXT("%s"), 1);
_tprintf(TEXT("%s\n"), bufTC);
// cppcheck-suppress invalidPrintfArgType_s
_stprintf_s(bufTC, TEXT("%s"), 1);
_tprintf(TEXT("%s\n"), bufTC);
}
void allocDealloc_GetModuleHandleEx()
{
// For GetModuleHandleEx it depends on the first argument if FreeLibrary
// must be called or is not allowed to be called.
// If the first argument is GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT
// (0x00000002), a call to FreeLibrary is not allowed, otherwise it is
// necessary.
// Since this is not possible to configure at the moment cppcheck should
// accept not calling FreeLibrary and also calling it for the handle.
// TODO: Enhance cppcheck to conditionally check for alloc/dealloc issues.
// No warning because of correct FreeLibrary on 'hModule' should be issued.
HMODULE hModule1;
if (GetModuleHandleEx(0, NULL, &hModule1)) {
FreeLibrary(hModule1);
}
//This is a false negative, but it is not detected to avoid false positives.
HMODULE hModule2;
GetModuleHandleEx(0, NULL, &hModule2);
}
void uninitvar_tolower(_locale_t l)
{
int c1, c2;
// cppcheck-suppress uninitvar
(void)_tolower(c1);
// cppcheck-suppress uninitvar
(void)_tolower_l(c2, l);
}
void uninitvar_toupper(_locale_t l)
{
int c1, c2;
// cppcheck-suppress uninitvar
(void)_toupper(c1);
// cppcheck-suppress uninitvar
(void)_toupper_l(c2, l);
}
void uninitvar_towlower(_locale_t l)
{
wint_t i;
// cppcheck-suppress uninitvar
(void)_towlower_l(i, l);
}
void uninitvar_towupper(_locale_t l)
{
wint_t i;
// cppcheck-suppress uninitvar
(void)_towupper_l(i, l);
}
void oppositeInnerCondition_SUCCEEDED_FAILED(HRESULT hr)
{
if (SUCCEEDED(hr)) {
// TODO ticket #8596 cppcheck-suppress oppositeInnerCondition
if (FAILED(hr)) {}
}
}
/*HANDLE WINAPI CreateThread(
_In_opt_ LPSECURITY_ATTRIBUTES lpThreadAttributes,
_In_ SIZE_T dwStackSize,
_In_ LPTHREAD_START_ROUTINE lpStartAddress,
_In_opt_ LPVOID lpParameter,
_In_ DWORD dwCreationFlags,
_Out_opt_ LPDWORD lpThreadId
);*/
HANDLE test_CreateThread(LPSECURITY_ATTRIBUTES lpThreadAttributes,
SIZE_T dwStackSize,
LPTHREAD_START_ROUTINE lpStartAddress,
LPVOID lpParameter,
DWORD dwCreationFlags,
LPDWORD lpThreadId)
{
// Create uninitialized variables
LPSECURITY_ATTRIBUTES uninit_lpThreadAttributes;
SIZE_T uninit_dwStackSize;
LPTHREAD_START_ROUTINE uninit_lpStartAddress;
LPVOID uninit_lpParameter;
DWORD uninit_dwCreationFlags;
// cppcheck-suppress leakReturnValNotUsed
// cppcheck-suppress uninitvar
(void) CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, uninit_dwCreationFlags, lpThreadId);
// cppcheck-suppress leakReturnValNotUsed
// cppcheck-suppress uninitvar
(void) CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, uninit_lpParameter, dwCreationFlags, lpThreadId);
// @todo uninitvar shall be reported
// cppcheck-suppress leakReturnValNotUsed
(void) CreateThread(lpThreadAttributes, dwStackSize, uninit_lpStartAddress, lpParameter, dwCreationFlags, lpThreadId);
// cppcheck-suppress leakReturnValNotUsed
// cppcheck-suppress uninitvar
(void) CreateThread(lpThreadAttributes, uninit_dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId);
// @todo uninitvar shall be reported
// cppcheck-suppress leakReturnValNotUsed
(void) CreateThread(uninit_lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId);
// cppcheck-suppress leakReturnValNotUsed
// cppcheck-suppress nullPointer
(void) CreateThread(lpThreadAttributes, dwStackSize, 0, lpParameter, dwCreationFlags, lpThreadId);
// cppcheck-suppress leakReturnValNotUsed
// cppcheck-suppress invalidFunctionArg
(void) CreateThread(lpThreadAttributes, -1, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId);
// no warning shall be shown for
return CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId);
}
// unsigned char *_mbscat(unsigned char *strDestination, const unsigned char *strSource);
unsigned char * uninitvar_mbscat(unsigned char *strDestination, const unsigned char *strSource)
{
unsigned char *uninit_deststr;
const unsigned char *uninit_srcstr1, *uninit_srcstr2;
// cppcheck-suppress uninitvar
(void)_mbscat(uninit_deststr,uninit_srcstr1);
// cppcheck-suppress uninitvar
(void)_mbscat(strDestination,uninit_srcstr2);
// no warning shall be shown for
return _mbscat(strDestination,strSource);
}
// unsigned char *_mbscat(unsigned char *strDestination, const unsigned char *strSource);
unsigned char * nullPointer_mbscat(unsigned char *strDestination, const unsigned char *strSource)
{
// cppcheck-suppress nullPointer
(void)_mbscat(0,strSource);
// cppcheck-suppress nullPointer
(void)_mbscat(strDestination,0);
// no warning shall be shown for
return _mbscat(strDestination,strSource);
}
// errno_t _mbscat_s(unsigned char *strDestination, size_t numberOfElements, const unsigned char *strSource );
error_t uninitvar_mbscat_s(unsigned char *strDestination, size_t numberOfElements, const unsigned char *strSource)
{
unsigned char *uninit_strDestination;
size_t uninit_numberOfElements;
const unsigned char *uninit_strSource;
// cppcheck-suppress uninitvar
(void)_mbscat_s(uninit_strDestination, numberOfElements, strSource);
// cppcheck-suppress uninitvar
(void)_mbscat_s(strDestination, uninit_numberOfElements, strSource);
// cppcheck-suppress uninitvar
(void)_mbscat_s(strDestination, numberOfElements, uninit_strSource);
// no warning shall be shown for
return _mbscat_s(strDestination, numberOfElements, strSource);
}
// errno_t _mbscat_s(unsigned char *strDestination, size_t numberOfElements, const unsigned char *strSource );
error_t nullPointer_mbscat_s(unsigned char *strDestination, size_t numberOfElements, const unsigned char *strSource)
{
// cppcheck-suppress nullPointer
(void)_mbscat_s(0, numberOfElements, strSource);
// cppcheck-suppress nullPointer
(void)_mbscat_s(strDestination, numberOfElements, 0);
// no warning shall be shown for
return _mbscat_s(strDestination, numberOfElements, strSource);
}
// errno_t _strncpy_s_l(char *strDest, size_t numberOfElements, const char *strSource, size_t count, _locale_t locale);
error_t uninitvar__strncpy_s_l(char *strDest, size_t numberOfElements, const char *strSource, size_t count, _locale_t locale)
{
size_t uninit_numberOfElements;
const char *uninit_strSource;
size_t uninit_count;
_locale_t uninit_locale;
// cppcheck-suppress uninitvar
(void)_strncpy_s_l(strDest, uninit_numberOfElements, strSource, count, locale);
// cppcheck-suppress uninitvar
(void)_strncpy_s_l(strDest, numberOfElements, uninit_strSource, count, locale);
// cppcheck-suppress uninitvar
(void)_strncpy_s_l(strDest, numberOfElements, strSource, uninit_count, locale);
// cppcheck-suppress uninitvar
(void)_strncpy_s_l(strDest, numberOfElements, strSource, count, uninit_locale);
// no warning shall be shown for
return _strncpy_s_l(strDest, numberOfElements, strSource, count, locale);
}
// errno_t _strncpy_s_l(char *strDest, size_t numberOfElements, const char *strSource, size_t count, _locale_t locale);
error_t nullPointer__strncpy_s_l(char *strDest, size_t numberOfElements, const char *strSource, size_t count, _locale_t locale)
{
// cppcheck-suppress nullPointer
(void)_strncpy_s_l(0, numberOfElements, strSource, count, locale);
// cppcheck-suppress nullPointer
(void)_strncpy_s_l(strDest, numberOfElements, 0, count, locale);
// no warning shall be shown for
return _strncpy_s_l(strDest, numberOfElements, strSource, count, locale);
}
void GetShortPathName_validCode(const TCHAR* lpszPath)
{
long length = GetShortPathName(lpszPath, NULL, 0);
if (length == 0) {
_tprintf(TEXT("error"));
return;
}
TCHAR* buffer = new TCHAR[length];
length = GetShortPathName(lpszPath, buffer, length);
if (length == 0) {
delete[] buffer;
_tprintf(TEXT("error"));
return;
}
_tprintf(TEXT("long name = %s short name = %s"), lpszPath, buffer);
delete[] buffer;
}
class MyClass : public CObject {
DECLARE_DYNAMIC(MyClass)
DECLARE_DYNCREATE(MyClass)
DECLARE_SERIAL(MyClass)
public:
MyClass() {}
};
IMPLEMENT_DYNAMIC(MyClass, CObject)
IMPLEMENT_DYNCREATE(MyClass, CObject)
IMPLEMENT_SERIAL(MyClass,CObject, 42)
void invalidPrintfArgType_StructMember(double d) { // #9672
typedef struct { CString st; } my_struct_t;
my_struct_t my_struct;
// cppcheck-suppress invalidPrintfArgType_sint
my_struct.st.Format("%d", d);
}
BOOL MyEnableWindow(HWND hWnd, BOOL bEnable) {
return EnableWindow(hWnd, bEnable);
}
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