Update.

* idna.c (idna_to_ascii_4z): Use strdup if available.  Unify two ifs.

	* idn-stub.c: Implement __idna_to_unicode_lzlz.  Split
	__idna_to_ascii_lz in two parts so that loading can be shared with
	the new function.
	* Versions (libcidn): Export idna_to_unicode_lzlz.

libidn/ChangeLog

@@ -1,5 +1,12 @@
 2004-03-12  Ulrich Drepper  <drepper@redhat.com>
 
+	* idna.c (idna_to_ascii_4z): Use strdup if available.  Unify two ifs.
+
+	* idn-stub.c: Implement __idna_to_unicode_lzlz.  Split
+	__idna_to_ascii_lz in two parts so that loading can be shared with
+	the new function.
+	* Versions (libcidn): Export idna_to_unicode_lzlz.
+
 	* Makefile (libcidn-inhibit-o): Define.  We need no archive.
 
 2004-03-08  Simon Josefsson  <jas@extundo.com>

libidn/Versions

@@ -1,5 +1,6 @@
 libcidn {
   GLIBC_PRIVATE {
     idna_to_ascii_lz;
+    idna_to_unicode_lzlz;
   }
 }

libidn/idna.c

@@ -437,24 +437,21 @@ idna_to_ascii_4z (const uint32_t * input, char **output, int flags)
      U+3002 (ideographic full stop), U+FF0E (fullwidth full stop),
      U+FF61 (halfwidth ideographic full stop). */
 
-  if (input[0] == 0)
+  if (input[0] == 0
+      /* Handle explicit zero-length root label. */
+      || (DOTP (input[0]) && input[1] == 0))
     {
+#if defined HAVE_STRDUP || defined _LIBC
+      *output = strdup (input);
+      return *output == NULL ? IDNA_MALLOC_ERROR : IDNA_SUCCESS;
+#else
       /* Handle implicit zero-length root label. */
       *output = malloc (1);
       if (!*output)
 	return IDNA_MALLOC_ERROR;
-      strcpy (*output, "");
-      return IDNA_SUCCESS;
-    }
-
-  if (DOTP (input[0]) && input[1] == 0)
-    {
-      /* Handle explicit zero-length root label. */
-      *output = malloc (2);
-      if (!*output)
-	return IDNA_MALLOC_ERROR;
-      strcpy (*output, ".");
+      strcpy (*output, input);
       return IDNA_SUCCESS;
+#endif
     }
 
   *output = NULL;