1 files changed, 102 insertions, 0 deletions
diff --git a/include/providers/lzma.h b/include/providers/lzma.h
new file mode 100644
index 00000000..8125bb8c
--- /dev/null
+++ b/include/providers/lzma.h
@@ -0,0 +1,102 @@
+/**
+  @file lzma.h
+  This service provides dynamic access to LZMA.
+*/
+
+#ifndef LZMA_INCLUDED
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef MYSQL_ABI_CHECK
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+#endif
+
+#ifndef MYSQL_DYNAMIC_PLUGIN
+#define provider_service_lzma provider_service_lzma_static
+#endif
+
+#ifndef LZMA_VERSION
+typedef enum
+{
+    LZMA_OK                 = 0,
+    LZMA_STREAM_END         = 1,
+    LZMA_NO_CHECK           = 2,
+    LZMA_UNSUPPORTED_CHECK  = 3,
+    LZMA_GET_CHECK          = 4,
+    LZMA_MEM_ERROR          = 5,
+    LZMA_MEMLIMIT_ERROR     = 6,
+    LZMA_FORMAT_ERROR       = 7,
+    LZMA_OPTIONS_ERROR      = 8,
+    LZMA_DATA_ERROR         = 9,
+    LZMA_BUF_ERROR          = 10,
+    LZMA_PROG_ERROR         = 11,
+} lzma_ret;
+
+typedef struct
+{
+    void *(*alloc)(void *opaque, size_t nmemb, size_t size);
+    void (*free)(void *opaque, void *ptr);
+    void *opaque;
+} lzma_allocator;
+
+typedef enum
+{
+    LZMA_CHECK_NONE     = 0,
+    LZMA_CHECK_CRC32    = 1,
+    LZMA_CHECK_CRC64    = 4,
+    LZMA_CHECK_SHA256   = 10
+} lzma_check;
+
+#define lzma_stream_buffer_decode(...) provider_service_lzma->lzma_stream_buffer_decode_ptr (__VA_ARGS__)
+#define lzma_easy_buffer_encode(...)   provider_service_lzma->lzma_easy_buffer_encode_ptr   (__VA_ARGS__)
+#elif LZMA_VERSION < 50010030
+#define lzma_maybe_const
+#endif
+
+#ifndef lzma_maybe_const
+#define lzma_maybe_const const
+#endif
+
+#define DEFINE_lzma_stream_buffer_decode(NAME) NAME( \
+    uint64_t *memlimit,                              \
+    uint32_t flags,                                  \
+    lzma_maybe_const lzma_allocator *allocator,      \
+    const uint8_t *in,                               \
+    size_t *in_pos,                                  \
+    size_t in_size,                                  \
+    uint8_t *out,                                    \
+    size_t *out_pos,                                 \
+    size_t out_size                                  \
+)
+
+#define DEFINE_lzma_easy_buffer_encode(NAME) NAME(   \
+    uint32_t preset,                                 \
+    lzma_check check,                                \
+    lzma_maybe_const lzma_allocator *allocator,      \
+    const uint8_t *in,                               \
+    size_t in_size,                                  \
+    uint8_t *out,                                    \
+    size_t *out_pos,                                 \
+    size_t out_size                                  \
+)
+
+struct provider_service_lzma_st
+{
+  lzma_ret DEFINE_lzma_stream_buffer_decode((*lzma_stream_buffer_decode_ptr));
+  lzma_ret DEFINE_lzma_easy_buffer_encode((*lzma_easy_buffer_encode_ptr));
+
+  bool is_loaded;
+};
+
+extern struct provider_service_lzma_st *provider_service_lzma;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#define LZMA_INCLUDED
+#endif