intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 31 insertions, 0 deletions

diff --git a/library/cpp/openssl/method/io.h b/library/cpp/openssl/method/io.h
new file mode 100644
index 00000000000..f1d3df978d7
--- /dev/null
+++ b/library/cpp/openssl/method/io.h
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <library/cpp/openssl/holders/bio.h>
+
+namespace NOpenSSL {
+
+class TAbstractIO {
+public:
+    TAbstractIO();
+    virtual ~TAbstractIO();
+
+    virtual int Write(const char* data, size_t dlen, size_t* written) = 0;
+    virtual int Read(char* data, size_t dlen, size_t* readbytes) = 0;
+    virtual int Puts(const char* buf) = 0;
+    virtual int Gets(char* buf, int size) = 0;
+
+    virtual long Ctrl(int cmd, long larg, void* parg);
+    virtual void Flush() = 0;
+
+    int WriteOld(const char* data, int dlen);
+    int ReadOld(char* data, int dlen);
+
+    inline operator BIO* () noexcept {
+        return Bio;
+    }
+
+private:
+    BIO* Bio;
+};
+
+} // namespace NOpenSSL