1 files changed, 55 insertions, 0 deletions
diff --git a/modules/comp_zlib/zlib.h b/modules/comp_zlib/zlib.h
new file mode 100644
index 000000000..1557afaab
--- /dev/null
+++ b/modules/comp_zlib/zlib.h
@@ -0,0 +1,55 @@
+/*************************************************
+* Zlib Compressor Header File                    *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#ifndef BOTAN_EXT_ZLIB_H__
+#define BOTAN_EXT_ZLIB_H__
+
+#include <botan/filter.h>
+
+namespace Botan {
+
+/*************************************************
+* Zlib Compression Filter                        *
+*************************************************/
+class Zlib_Compression : public Filter
+   {
+   public:
+      void write(const byte input[], u32bit length);
+      void start_msg();
+      void end_msg();
+
+      void flush();
+
+      Zlib_Compression(u32bit = 6);
+      ~Zlib_Compression() { clear(); }
+   private:
+      void clear();
+      const u32bit level;
+      SecureVector<byte> buffer;
+      class Zlib_Stream* zlib;
+   };
+
+/*************************************************
+* Zlib Decompression Filter                      *
+*************************************************/
+class Zlib_Decompression : public Filter
+   {
+   public:
+      void write(const byte input[], u32bit length);
+      void start_msg();
+      void end_msg();
+
+      Zlib_Decompression();
+      ~Zlib_Decompression() { clear(); }
+   private:
+      void clear();
+      SecureVector<byte> buffer;
+      class Zlib_Stream* zlib;
+      bool no_writes;
+   };
+
+}
+
+#endif