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feat(c-wrapper): setCppPtrFromC is now more secure

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This commit is contained in:
Ronan Abhamon 2017-09-22 15:09:14 +02:00
parent dbb214f988
commit 8167360f47
1 changed files with 16 additions and 10 deletions
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26
src/c-wrapper/internal/c-tools.h
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@ -123,21 +123,27 @@ public:
return reinterpret_cast<const WrappedClonableObject<CppType> *>(cObject)->cppPtr;
}
template<typename T>
static inline void setCppPtrFromC (void *cObject, const std::shared_ptr<T> &cppObject) {
template<
typename CppType,
typename = typename std::enable_if<std::is_base_of<Object, CppType>::value, CppType>::type
>
static inline void setCppPtrFromC (void *cObject, const std::shared_ptr<CppType> &cppObject) {
L_ASSERT(cObject);
static_cast<WrappedObject<T> *>(cObject)->cppPtr = cppObject;
static_cast<WrappedObject<CppType> *>(cObject)->cppPtr = cppObject;
cppObject->setProperty("LinphonePrivate::Wrapper::cBackPtr", cObject);
}
template<typename T>
static inline void setCppPtrFromC (void *cObject, const T *cppObject) {
template<
typename CppType,
typename = typename std::enable_if<std::is_base_of<ClonableObject, CppType>::value, CppType>::type
>
static inline void setCppPtrFromC (void *cObject, const CppType *cppObject) {
L_ASSERT(cObject);
T *oldPtr = reinterpret_cast<T *>(static_cast<WrappedClonableObject<T> *>(cObject)->cppPtr);
CppType *oldPtr = reinterpret_cast<CppType *>(static_cast<WrappedClonableObject<CppType> *>(cObject)->cppPtr);
if (oldPtr != cppObject) {
delete oldPtr;
T **cppPtr = &static_cast<WrappedClonableObject<T> *>(cObject)->cppPtr;
*cppPtr = new T(*cppObject);
CppType **cppPtr = &static_cast<WrappedClonableObject<CppType> *>(cObject)->cppPtr;
*cppPtr = new CppType(*cppObject);
(*cppPtr)->setProperty("LinphonePrivate::Wrapper::cBackPtr", cObject);
}
}
@ -429,8 +435,8 @@ LINPHONE_END_NAMESPACE
>(C_OBJECT)
// Set the cpp-ptr of a wrapped C object.
#define L_SET_CPP_PTR_FROM_C_OBJECT(C_OBJECT, CPP_PTR) \
LINPHONE_NAMESPACE::Wrapper::setCppPtrFromC(C_OBJECT, CPP_PTR)
#define L_SET_CPP_PTR_FROM_C_OBJECT(C_OBJECT, CPP_OBJECT) \
LINPHONE_NAMESPACE::Wrapper::setCppPtrFromC(C_OBJECT, CPP_OBJECT)
// Get the private data of a shared or simple cpp-ptr.
#define L_GET_PRIVATE(CPP_OBJECT) \