intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 30 insertions, 0 deletions

diff --git a/util/stream/hex.cpp b/util/stream/hex.cpp
new file mode 100644
index 00000000000..1c05330504a
--- /dev/null
+++ b/util/stream/hex.cpp
@@ -0,0 +1,30 @@
+#include "hex.h"
+
+#include "output.h"
+#include <util/string/hex.h>
+
+void HexEncode(const void* in, size_t len, IOutputStream& out) {
+    static const size_t NUM_OF_BYTES = 32;
+    char buffer[NUM_OF_BYTES * 2];
+
+    auto current = static_cast<const char*>(in);
+    for (size_t take = 0; len; current += take, len -= take) {
+        take = Min(NUM_OF_BYTES, len);
+        HexEncode(current, take, buffer);
+        out.Write(buffer, take * 2);
+    }
+}
+
+void HexDecode(const void* in, size_t len, IOutputStream& out) {
+    Y_ENSURE(!(len & 1), TStringBuf("Odd buffer length passed to HexDecode"));
+
+    static const size_t NUM_OF_BYTES = 32;
+    char buffer[NUM_OF_BYTES];
+
+    auto current = static_cast<const char*>(in);
+    for (size_t take = 0; len; current += take, len -= take) {
+        take = Min(NUM_OF_BYTES * 2, len);
+        HexDecode(current, take, buffer);
+        out.Write(buffer, take / 2);
+    }
+}