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Fixed #5611 (segfault when checking pcsc-cyberjack. either symboldatabase or checkMemset)

This commit is contained in:
Daniel Marjamäki 2014-03-30 17:38:07 +02:00
parent 060f9035c9
commit 640431c569
2 changed files with 15 additions and 7 deletions
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20
lib/checkclass.cpp
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@ -1008,10 +1008,13 @@ void CheckClass::checkMemset()
type = t->classScope;
}
if (type)
checkMemsetType(&(*scope), tok, type, false);
if (type) {
std::list<const Scope *> parsedTypes;
checkMemsetType(&(*scope), tok, type, false, parsedTypes);
}
} else if (tok->variable() && tok->variable()->typeScope() && Token::Match(tok, "%var% = calloc|malloc|realloc|g_malloc|g_try_malloc|g_realloc|g_try_realloc (")) {
checkMemsetType(&(*scope), tok->tokAt(2), tok->variable()->typeScope(), true);
std::list<const Scope *> parsedTypes;
checkMemsetType(&(*scope), tok->tokAt(2), tok->variable()->typeScope(), true, parsedTypes);
if (tok->variable()->typeScope()->numConstructors > 0 && _settings->isEnabled("warning"))
mallocOnClassWarning(tok, tok->strAt(2), tok->variable()->typeScope()->classDef);
@ -1020,12 +1023,17 @@ void CheckClass::checkMemset()
}
}
void CheckClass::checkMemsetType(const Scope *start, const Token *tok, const Scope *type, bool allocation)
void CheckClass::checkMemsetType(const Scope *start, const Token *tok, const Scope *type, bool allocation, std::list<const Scope *> parsedTypes)
{
// If type has been checked there is no need to check it again
if (std::find(parsedTypes.begin(), parsedTypes.end(), type) != parsedTypes.end())
return;
parsedTypes.push_back(type);
// recursively check all parent classes
for (std::size_t i = 0; i < type->definedType->derivedFrom.size(); i++) {
if (type->definedType->derivedFrom[i].type && type->definedType->derivedFrom[i].type->classScope)
checkMemsetType(start, tok, type->definedType->derivedFrom[i].type->classScope, allocation);
checkMemsetType(start, tok, type->definedType->derivedFrom[i].type->classScope, allocation, parsedTypes);
}
// Warn if type is a class that contains any virtual functions
@ -1062,7 +1070,7 @@ void CheckClass::checkMemsetType(const Scope *start, const Token *tok, const Sco
// check for known type
else if (typeScope && typeScope != type)
checkMemsetType(start, tok, typeScope, allocation);
checkMemsetType(start, tok, typeScope, allocation, parsedTypes);
}
}
}

2
lib/checkclass.h
View File

@ -94,7 +94,7 @@ public:
* Important: The checking doesn't work on simplified tokens list.
*/
void checkMemset();
void checkMemsetType(const Scope *start, const Token *tok, const Scope *type, bool allocation);
void checkMemsetType(const Scope *start, const Token *tok, const Scope *type, bool allocation, std::list<const Scope *> parsedTypes);
/** @brief 'operator=' should return something and it should not be const. */
void operatorEq();