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#ifndef STRING_MANAGER_H
#define STRING_MANAGER_H
class CipherRC5;
struct STRING_DIRECTORY {
uint32_t NumberOfEntries;
// STRING_ENTRY Entries[];
};
struct STRING_ENTRY {
uint32_t Id;
uint32_t OffsetToData;
uint32_t Size;
};
class VirtualString
{
public:
VirtualString(const STRING_ENTRY *entry, HMODULE instance, uint32_t key);
~VirtualString();
uint8_t *AcquirePointer();
bool Release();
uint8_t *address() const { return address_; }
private:
void Clear();
size_t use_count_;
uint8_t *address_;
size_t size_;
// no copy ctr or assignment op
VirtualString(const VirtualString &);
VirtualString &operator =(const VirtualString &);
};
class StringManager
{
public:
StringManager(const uint8_t *data, HMODULE instance, const uint8_t *key);
~StringManager();
const void *DecryptString(const void *str);
bool FreeString(const void *str);
private:
STRING_DIRECTORY DecryptDirectory(const STRING_DIRECTORY *directory_enc) const;
STRING_ENTRY DecryptEntry(const STRING_ENTRY *entry_enc) const;
size_t IndexById(uint32_t id) const;
size_t IndexByAddress(const void *address) const;
const uint8_t *data_;
HMODULE instance_;
CRITICAL_SECTION critical_section_;
VirtualString **strings_;
uint32_t key_;
size_t size_;
// no copy ctr or assignment op
StringManager(const StringManager &);
StringManager &operator =(const StringManager &);
};
#endif
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