cppcheck/main.cpp

221 lines
5.0 KiB
C++

#include <iostream>
#include <sstream>
#include "tokenize.h" // <- Tokenizer
#include "Statements.h" // <- Statement list
#include "CheckMemoryLeak.h"
#include "CheckBufferOverrun.h"
#include "CheckClass.h"
#include "CheckHeaders.h"
#include "CheckOther.h"
#include <dir.h> // <- findfirst, ffblk
//---------------------------------------------------------------------------
bool Debug = false;
bool ShowAll = false;
bool CheckCodingStyle = false;
//---------------------------------------------------------------------------
static void CppCheck(const char FileName[]);
//---------------------------------------------------------------------------
// Main function of cppcheck
//---------------------------------------------------------------------------
int main(int argc, char* argv[])
{
const char *fname = NULL;
for (int i = 1; i < argc; i++)
{
if (strcmp(argv[i],"--debug") == 0)
Debug = true;
// Show all messages
else if (strcmp(argv[i],"--all") == 0)
ShowAll = true;
// Checking coding style.
else if (strcmp(argv[i],"--style")==0)
CheckCodingStyle = true;
else
fname = argv[i];
}
if (!fname)
{
std::cout << "C/C++ code checking.\n"
"\n"
"Syntax:\n"
" cppcheck [--all] [--style] filename\n"
"\n"
"Options:\n"
" --all Normally a message is only shown if cppcheck is sure\n"
" it has found a bug.\n"
" When this option is given, all messages are shown.\n"
"\n"
" --style Check coding style.\n";
return 0;
}
struct ffblk f;
int done = findfirst(fname,&f,0);
while (!done)
{
char path[1000];
if (strchr(fname,'\\'))
{
strcpy(path, fname);
*(strrchr(path,'\\')+1) = 0;
}
else if (strchr(fname,'/'))
{
strcpy(path, fname);
*(strrchr(path,'/')+1) = 0;
}
else
{
path[0] = 0;
}
strcat(path, f.ff_name);
CppCheck(path);
done = findnext(&f);
}
return 0;
}
//---------------------------------------------------------------------------
// CppCheck - A function that checks a specified file
//---------------------------------------------------------------------------
extern bool HasErrors;
static void CppCheck(const char FileName[])
{
HasErrors = false;
std::cout << "Checking " << FileName << "...\n";
// Tokenize the file
tokens = tokens_back = NULL;
Files.clear();
Tokenize(FileName);
// Check that the memsets are valid.
// The 'memset' function can do dangerous things if used wrong.
// Important: The checking doesn't work on simplified tokens list.
CheckMemset();
// Including header which is not needed
if ( CheckCodingStyle )
WarningIncludeHeader();
SimplifyTokenList();
// Create a statement list. It's used by for example 'CheckMemoryLeak'
CreateStatementList();
// Memory leak
CheckMemoryLeak();
// Buffer overruns..
CheckBufferOverrun();
if (ShowAll)
{
// Check for "if (a=b)"
CheckIfAssignment();
// Check for case without break
CheckCaseWithoutBreak();
// Check that all class constructors are ok.
// Temporarily inactivated to avoid any false positives
CheckConstructors();
// Dangerous usage of strtok
WarningStrTok();
}
// Dangerous functions, such as 'gets' and 'scanf'
WarningDangerousFunctions();
// Invalid function usage..
InvalidFunctionUsage();
if (CheckCodingStyle)
{
// Check that all private functions are called.
CheckUnusedPrivateFunctions();
// Found implementation in header
WarningHeaderWithImplementation();
// Warning upon c-style pointer casts
const char *ext = strrchr(FileName, '.');
#ifdef __linux__
if (ext && strcasecmp(ext,".c"))
#else
if (ext && stricmp(ext,".c"))
#endif
WarningOldStylePointerCast();
// Use standard functions instead
WarningIsDigit();
WarningIsAlpha();
CheckOperatorEq1();
// if (a) delete a;
WarningRedundantCode();
// if (condition);
WarningIf();
}
// Clean up tokens..
DeallocateTokens();
// Todo: How should this work? Activated by a command line switch?
if ( ! HasErrors )
std::cout << "No errors found\n";
}
//---------------------------------------------------------------------------