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-rw-r--r--src/corefx/System.Globalization.Native/idna.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/corefx/System.Globalization.Native/idna.cpp b/src/corefx/System.Globalization.Native/idna.cpp
new file mode 100644
index 0000000000..4820d2c3f2
--- /dev/null
+++ b/src/corefx/System.Globalization.Native/idna.cpp
@@ -0,0 +1,80 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+//
+
+#include <stdint.h>
+#include <unicode/uidna.h>
+
+const uint32_t AllowUnassigned = 0x1;
+const uint32_t UseStd3AsciiRules = 0x2;
+
+uint32_t GetOptions(uint32_t flags)
+{
+ // Using Nontransitional to Unicode and Check ContextJ to match the current behavior of .NET on Windows
+ uint32_t options = UIDNA_NONTRANSITIONAL_TO_UNICODE | UIDNA_CHECK_CONTEXTJ;
+
+ if ((flags & AllowUnassigned) == AllowUnassigned)
+ {
+ options |= UIDNA_ALLOW_UNASSIGNED;
+ }
+
+ if ((flags & UseStd3AsciiRules) == UseStd3AsciiRules)
+ {
+ options |= UIDNA_USE_STD3_RULES;
+ }
+
+ return options;
+}
+
+/*
+Function:
+ToASCII
+
+Used by System.Globalization.IdnMapping.GetAsciiCore to convert an Unicode
+domain name to ASCII
+
+Return values:
+0: internal error during conversion.
+>0: the length of the converted string (not including the null terminator).
+*/
+extern "C" int32_t GlobalizationNative_ToAscii(
+ uint32_t flags, const UChar* lpSrc, int32_t cwSrcLength, UChar* lpDst, int32_t cwDstLength)
+{
+ UErrorCode err = U_ZERO_ERROR;
+ UIDNAInfo info = UIDNA_INFO_INITIALIZER;
+
+ UIDNA* pIdna = uidna_openUTS46(GetOptions(flags), &err);
+
+ int32_t asciiStrLen = uidna_nameToASCII(pIdna, lpSrc, cwSrcLength, lpDst, cwDstLength, &info, &err);
+
+ uidna_close(pIdna);
+
+ return ((U_SUCCESS(err) || (err == U_BUFFER_OVERFLOW_ERROR)) && (info.errors == 0)) ? asciiStrLen : 0;
+}
+
+/*
+Function:
+ToUnicode
+
+Used by System.Globalization.IdnMapping.GetUnicodeCore to convert an ASCII name
+to Unicode
+
+Return values:
+0: internal error during conversion.
+>0: the length of the converted string (not including the null terminator).
+*/
+extern "C" int32_t GlobalizationNative_ToUnicode(
+ int32_t flags, const UChar* lpSrc, int32_t cwSrcLength, UChar* lpDst, int32_t cwDstLength)
+{
+ UErrorCode err = U_ZERO_ERROR;
+ UIDNAInfo info = UIDNA_INFO_INITIALIZER;
+
+ UIDNA* pIdna = uidna_openUTS46(GetOptions(flags), &err);
+
+ int32_t unicodeStrLen = uidna_nameToUnicode(pIdna, lpSrc, cwSrcLength, lpDst, cwDstLength, &info, &err);
+
+ uidna_close(pIdna);
+
+ return ((U_SUCCESS(err) || (err == U_BUFFER_OVERFLOW_ERROR)) && (info.errors == 0)) ? unicodeStrLen : 0;
+}