+/*
+ * When OpenSSL is built on Windows, we do not want to require that
+ * the ZLIB.DLL be available in order for the OpenSSL DLLs to
+ * work. Therefore, all ZLIB routines are loaded at run time
+ * and we do not link to a .LIB file.
+ */
+#if defined(WINDOWS) || defined(WIN32)
+# include <windows.h>
+
+# define Z_CALLCONV _stcall
+# define ZLIB_SHARED
+#else
+# define Z_CALLCONV
+#endif /* !(WINDOWS || WIN32) */
+
+#ifdef ZLIB_SHARED
+#include <openssl/dso.h>
+
+/* Prototypes for built in stubs */
+static int stub_compress(Bytef *dest,uLongf *destLen,
+ const Bytef *source, uLong sourceLen);
+static int stub_inflateEnd(z_streamp strm);
+static int stub_inflate(z_streamp strm, int flush);
+static int stub_inflateInit_(z_streamp strm, const char * version,
+ int stream_size);
+
+/* Function pointers */
+typedef int Z_CALLCONV (*compress_ft)(Bytef *dest,uLongf *destLen,
+ const Bytef *source, uLong sourceLen);
+typedef int Z_CALLCONV (*inflateEnd_ft)(z_streamp strm);
+typedef int Z_CALLCONV (*inflate_ft)(z_streamp strm, int flush);
+typedef int Z_CALLCONV (*inflateInit__ft)(z_streamp strm,
+ const char * version, int stream_size);
+static compress_ft p_compress=NULL;
+static inflateEnd_ft p_inflateEnd=NULL;
+static inflate_ft p_inflate=NULL;
+static inflateInit__ft p_inflateInit_=NULL;
+
+static int zlib_loaded = 0; /* only attempt to init func pts once */
+static DSO *zlib_dso = NULL;
+
+#define compress stub_compress
+#define inflateEnd stub_inflateEnd
+#define inflate stub_inflate
+#define inflateInit_ stub_inflateInit_
+#endif /* ZLIB_SHARED */
+