From a1e0873bd8ab79f64296d1103a4e9e7ee6a5bbb7 Mon Sep 17 00:00:00 2001 From: Narayan Kamath Date: Fri, 19 Aug 2016 15:26:24 +0100 Subject: IDN: Fix handling of long domain names. Fix merge conflict into mnc-mr2-release We were incorrectly using sizeof() to calculate the size of the output array. Note that this change also changes the output size to 512 to minimize behavioural differences (especially wrt. ICU checks on sizes). bug: 30765246 Change-Id: I5d28ddc45d2d6d2bed3e479ca195ed2779b906ed --- luni/src/main/native/libcore_icu_NativeIDN.cpp | 9 +++++---- luni/src/test/java/libcore/java/net/IDNTest.java | 11 +++++++++++ 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/luni/src/main/native/libcore_icu_NativeIDN.cpp b/luni/src/main/native/libcore_icu_NativeIDN.cpp index 43f3ce5..9786b9d 100644 --- a/luni/src/main/native/libcore_icu_NativeIDN.cpp +++ b/luni/src/main/native/libcore_icu_NativeIDN.cpp @@ -37,7 +37,8 @@ static jstring NativeIDN_convertImpl(JNIEnv* env, jclass, jstring javaSrc, jint if (src.get() == NULL) { return NULL; } - UChar dst[256]; + static const size_t kDstSize = 512; + UChar dst[kDstSize]; UErrorCode status = U_ZERO_ERROR; // We're stuck implementing IDNA-2003 for now since that's what we specify. @@ -47,10 +48,10 @@ static jstring NativeIDN_convertImpl(JNIEnv* env, jclass, jstring javaSrc, jint #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wdeprecated-declarations" size_t resultLength = toAscii - ? uidna_IDNToASCII(src.get(), src.size(), &dst[0], sizeof(dst), flags, NULL, &status) - : uidna_IDNToUnicode(src.get(), src.size(), &dst[0], sizeof(dst), flags, NULL, &status); + ? uidna_IDNToASCII(src.get(), src.size(), &dst[0], kDstSize, flags, NULL, &status) + : uidna_IDNToUnicode(src.get(), src.size(), &dst[0], kDstSize, flags, NULL, &status); #pragma GCC diagnostic pop - + if (U_FAILURE(status)) { jniThrowException(env, "java/lang/IllegalArgumentException", u_errorName(status)); return NULL; diff --git a/luni/src/test/java/libcore/java/net/IDNTest.java b/luni/src/test/java/libcore/java/net/IDNTest.java index f01eca3..37f3505 100644 --- a/luni/src/test/java/libcore/java/net/IDNTest.java +++ b/luni/src/test/java/libcore/java/net/IDNTest.java @@ -37,4 +37,15 @@ public class IDNTest extends TestCase { String longInput = makePunyString(512); assertEquals(longInput, IDN.toUnicode(longInput)); } + + // http://b/30765246 + public void testLongDomainName() { + String label63 = "123456789-123456789-123456789-123456789-123456789-123456789-123"; + String host255 = label63 + "." + label63 + "." + label63 + "." + label63; + try { + IDN.toASCII(host255.substring(3) + ".com"); + fail(); + } catch (IllegalArgumentException expected) { + } + } } -- cgit v1.1