Adding upstream version 2.5.7.upstream/2.5.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/lib/util/encode/utf8.cc b/src/lib/util/encode/utf8.cc
new file mode 100644
index 0000000..ac9e0d0
--- /dev/null
+++ b/src/lib/util/encode/utf8.cc
@@ -0,0 +1,35 @@
+// Copyright (C) 2020 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <config.h>
+
+#include <util/encode/utf8.h>
+
+namespace isc {
+namespace util {
+namespace encode {
+
+std::vector<uint8_t> encodeUtf8(const std::string& value) {
+    std::vector<uint8_t> result;
+    if (value.empty()) {
+        return (result);
+    }
+    const uint8_t* start = reinterpret_cast<const uint8_t*>(value.c_str());
+    std::vector<uint8_t> binary(start, start + value.size());
+    for (uint8_t ch : binary) {
+        if (ch < 0x80) {
+            result.push_back(ch);
+        } else {
+            result.push_back(0xc0 | (ch >> 6));
+            result.push_back(0x80 | (ch & 0x3f));
+        }
+    }
+    return (result);
+}
+
+} // namespace encode
+} // namespace util
+} // namespace isc