1 /*
2 * Zlib Compressor
3 * (C) 2001 Peter J Jones
4 *     2001-2007,2014 Jack Lloyd
5 *
6 * Botan is released under the Simplified BSD License (see license.txt)
7 */
8 
9 #ifndef BOTAN_ZLIB_H_
10 #define BOTAN_ZLIB_H_
11 
12 #include <botan/compression.h>
13 
14 namespace Botan {
15 
16 /**
17 * Zlib Compression
18 */
19 class BOTAN_PUBLIC_API(2,0) Zlib_Compression final : public Stream_Compression
20    {
21    public:
name()22       std::string name() const override { return "Zlib_Compression"; }
23    private:
24       Compression_Stream* make_stream(size_t level) const override;
25    };
26 
27 /**
28 * Zlib Decompression
29 */
30 class BOTAN_PUBLIC_API(2,0) Zlib_Decompression final : public Stream_Decompression
31    {
32    public:
name()33       std::string name() const override { return "Zlib_Decompression"; }
34    private:
35       Compression_Stream* make_stream() const override;
36    };
37 
38 /**
39 * Deflate Compression
40 */
41 class BOTAN_PUBLIC_API(2,0) Deflate_Compression final : public Stream_Compression
42    {
43    public:
name()44       std::string name() const override { return "Deflate_Compression"; }
45    private:
46       Compression_Stream* make_stream(size_t level) const override;
47    };
48 
49 /**
50 * Deflate Decompression
51 */
52 class BOTAN_PUBLIC_API(2,0) Deflate_Decompression final : public Stream_Decompression
53    {
54    public:
name()55       std::string name() const override { return "Deflate_Decompression"; }
56    private:
57       Compression_Stream* make_stream() const override;
58    };
59 
60 /**
61 * Gzip Compression
62 */
63 class BOTAN_PUBLIC_API(2,0) Gzip_Compression final : public Stream_Compression
64    {
65    public:
66       explicit Gzip_Compression(uint8_t os_code = 255, uint64_t hdr_time = 0) :
m_hdr_time(hdr_time)67          m_hdr_time(hdr_time), m_os_code(os_code) {}
68 
name()69       std::string name() const override { return "Gzip_Compression"; }
70    private:
71       Compression_Stream* make_stream(size_t level) const override;
72       const uint64_t m_hdr_time;
73       const uint8_t m_os_code;
74    };
75 
76 /**
77 * Gzip Decompression
78 */
79 class BOTAN_PUBLIC_API(2,0) Gzip_Decompression final : public Stream_Decompression
80    {
81    public:
name()82       std::string name() const override { return "Gzip_Decompression"; }
83    private:
84       Compression_Stream* make_stream() const override;
85    };
86 
87 }
88 
89 #endif
90