Initial community commit

Src/external_dependencies/openmpt-trunk/include/unrar/secpassword.hpp

@@ -0,0 +1,35 @@
+#ifndef _RAR_SECURE_PASSWORD_
+#define _RAR_SECURE_PASSWORD_
+
+// Store a password securely (if data encryption is provided by OS)
+// or obfuscated to make search for password in memory dump less trivial.
+class SecPassword
+{
+  private:
+    void Process(const wchar *Src,size_t SrcSize,wchar *Dst,size_t DstSize,bool Encode);
+
+    wchar Password[MAXPASSWORD];
+
+    // It is important to have this 'bool' value, so if our object is cleaned
+    // with memset as a part of larger structure, it is handled correctly.
+    bool PasswordSet;
+  public:
+    SecPassword();
+    ~SecPassword();
+    void Clean();
+    void Get(wchar *Psw,size_t MaxSize);
+    void Set(const wchar *Psw);
+    bool IsSet() {return PasswordSet;}
+    size_t Length();
+    bool operator == (SecPassword &psw);
+
+    // Set to true if we need to pass a password to another process.
+    // We use it when transferring parameters to UAC elevated WinRAR.
+    bool CrossProcess;
+};
+
+
+void cleandata(void *data,size_t size);
+void SecHideData(void *Data,size_t DataSize,bool Encode,bool CrossProcess);
+
+#endif