From fc03b00ddf68ef2075aa56dbaa0d1bbb19c5f7e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
Date: Fri, 24 May 2019 13:03:11 +0200
Subject: Fix build failure in csharp/

---
 csharp/Makefile.am | 6 +++---
 lib/punycode.c     | 7 +++++--
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/csharp/Makefile.am b/csharp/Makefile.am
index 7afdea9..4625738 100644
--- a/csharp/Makefile.am
+++ b/csharp/Makefile.am
@@ -59,15 +59,15 @@ GenerateTables.exe: $(SOURCES_GENERATE)
 		`for src in $(SOURCES_GENERATE); do echo $(srcdir)/$$src; done`
 	if ! test -f rfc3454.txt; then \
 		ln -s $(SPEC)/rfc3454.txt . \
-		|| cp $(SPEC)/rfc3454.txt .; \
+		|| cp $(SPEC)/rfc3454.txt . || true; \
 	fi
 	if ! test -f UnicodeData.txt; then \
 		ln -s $(SPEC)/UnicodeData-3.2.0.txt UnicodeData.txt \
-		|| cp $(SPEC)/UnicodeData-3.2.0.txt UnicodeData.txt; \
+		|| cp $(SPEC)/UnicodeData-3.2.0.txt UnicodeData.txt || true; \
 	fi
 	if ! test -f CompositionExclusions.txt; then \
 		ln -s $(SPEC)/CompositionExclusions-3.2.0.txt CompositionExclusions.txt \
-		|| cp $(SPEC)/CompositionExclusions-3.2.0.txt CompositionExclusions.txt; \
+		|| cp $(SPEC)/CompositionExclusions-3.2.0.txt CompositionExclusions.txt || true; \
 	fi
 
 RFC3454.cs CombiningClass.cs DecompositionKeys.cs DecompositionMappings.cs Composition.cs: $(GEN_SOURCES)
diff --git a/lib/punycode.c b/lib/punycode.c
index f7c63e6..bb5f34b 100644
--- a/lib/punycode.c
+++ b/lib/punycode.c
@@ -228,7 +228,7 @@ punycode_encode (size_t input_length,
 	  output[out++] = case_flags ?
 	    encode_basic (input[j], case_flags[j]) : (char) input[j];
 	}
-      else if (input[j] > 0x10FFFF)
+      else if (input[j] > 0x10FFFF || (input[j] >= 0xD800 && input[j] <= 0xDBFF))
 	return punycode_bad_input;
       /* else if (input[j] < n) return punycode_bad_input; */
       /* (not needed for Punycode with unsigned code points) */
@@ -378,6 +378,9 @@ punycode_decode (size_t input_length,
 	return punycode_bad_input;
       output[out++] = input[j];
     }
+  for (j = b + (b > 0);  j < input_length;  ++j)
+    if (!basic (input[j]))
+      return punycode_bad_input;
 
   /* Main decoding loop:  Start just after the last delimiter if any  */
   /* basic code points were copied; start at the beginning otherwise. */
@@ -420,7 +423,7 @@ punycode_decode (size_t input_length,
       if (i / (out + 1) > maxint - n)
 	return punycode_overflow;
       n += i / (out + 1);
-      if (n > 0x10FFFF)
+      if (n > 0x10FFFF  || (n >= 0xD800 && n <= 0xDBFF))
 	return punycode_bad_input;
       i %= (out + 1);
 
-- 
cgit v1.0-41-gc330