Update.

	* iconv/gconv_builtin.c: Include <endian.h>.
	* iconv/gconv_builtin.h: Add UCS-BE aliases.
	Add UCS-4LE transformation.  Define UNICODEBIG and UNICODELITTLE
	according to current platform.
	* iconv/gconv_int.h: Declare __gconv_transform_ucs2reverse_internal,
	__gconv_transform_internal_ucs2reverse, and
	__gconv_transform_internal_ucs4le.
	* iconv/gconv_simple.c: Implement __gconv_transform_internal_ucs4le,
	__gconv_transform_ucs2reverse_internal and
	__gconv_transform_internal_ucs2reverse.
	* iconvdata/Makefile (modules): Add UNICODE.
	(distribute): Add unicode.c.
	* iconvdata/gconv-modules: Add definitions for UNICODE module.
	* iconvdata/unicode.c: New file.

	* iconvdata/utf-16.c: Rewrite code to emit BOM.  Correct code to
	determine byte order of input and convert accordingly.

4 files changed, 106 insertions, 15 deletions

diff --git a/iconv/gconv_builtin.c b/iconv/gconv_builtin.c
index ca3ca3e5e6..68c9f68c17 100644
--- a/iconv/gconv_builtin.c
+++ b/iconv/gconv_builtin.c
@@ -1,5 +1,5 @@
 /* Table for builtin transformation mapping.
-   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -18,6 +18,7 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include <endian.h>
 #include <limits.h>
 #include <string.h>
 
diff --git a/iconv/gconv_builtin.h b/iconv/gconv_builtin.h
index 6e91a8646c..150457b223 100644
--- a/iconv/gconv_builtin.h
+++ b/iconv/gconv_builtin.h
@@ -20,12 +20,14 @@
 
 BUILTIN_ALIAS ("UCS4//", "ISO-10646/UCS4/")
 BUILTIN_ALIAS ("UCS-4//", "ISO-10646/UCS4/")
+BUILTIN_ALIAS ("UCS-4BE//", "ISO-10646/UCS4/")
+BUILTIN_ALIAS ("CSUCS4//", "ISO-10646/UCS4/")
 BUILTIN_ALIAS ("ISO-10646//", "ISO-10646/UCS4/")
 BUILTIN_ALIAS ("10646-1:1993//", "ISO-10646/UCS4/")
 BUILTIN_ALIAS ("10646-1:1993/UCS4/", "ISO-10646/UCS4/")
-BUILTIN_ALIAS ("OSF00010104//", "ISO-10646/UCS4/")
-BUILTIN_ALIAS ("OSF00010105//", "ISO-10646/UCS4/")
-BUILTIN_ALIAS ("OSF00010106//", "ISO-10646/UCS4/")
+BUILTIN_ALIAS ("OSF00010104//", "ISO-10646/UCS4/") /* level 1 */
+BUILTIN_ALIAS ("OSF00010105//", "ISO-10646/UCS4/") /* level 2 */
+BUILTIN_ALIAS ("OSF00010106//", "ISO-10646/UCS4/") /* level 3 */
 
 BUILTIN_TRANSFORMATION (NULL, "INTERNAL", 8,
 			"ISO-10646/UCS4/", 1, "=INTERNAL->ucs4",
@@ -37,6 +39,16 @@ BUILTIN_TRANSFORMATION (NULL, "ISO-10646/UCS4/", 15,
 			4, 4, 4, 4)
 /* Please note that we need only one function for both direction.  */
 
+BUILTIN_TRANSFORMATION (NULL, "INTERNAL", 8,
+			"UCS-4LE//", 1, "=INTERNAL->ucs4le",
+			__gconv_transform_internal_ucs4le, NULL, NULL,
+			4, 4, 4, 4)
+BUILTIN_TRANSFORMATION (NULL, "UCS-4LE//", 15,
+			"INTERNAL", 1, "=ucs4le->INTERNAL",
+			__gconv_transform_internal_ucs4le, NULL, NULL,
+			4, 4, 4, 4)
+/* Please note that we need only one function for both direction.  */
+
 BUILTIN_ALIAS ("UTF8//", "ISO-10646/UTF8/")
 BUILTIN_ALIAS ("UTF-8//", "ISO-10646/UTF8/")
 BUILTIN_ALIAS ("ISO-IR-193//", "ISO-10646/UTF8/")
@@ -54,11 +66,9 @@ BUILTIN_TRANSFORMATION ("ISO-10646/UTF-?8/", "ISO-10646/UTF", 13,
 
 BUILTIN_ALIAS ("UCS2//", "ISO-10646/UCS2/")
 BUILTIN_ALIAS ("UCS-2//", "ISO-10646/UCS2/")
-BUILTIN_ALIAS ("UNICODE//", "ISO-10646/UCS2/")
-BUILTIN_ALIAS ("UNICODEBIG//", "ISO-10646/UCS2/")
-BUILTIN_ALIAS ("OSF00010100//", "ISO-10646/UCS2/")
-BUILTIN_ALIAS ("OSF00010101//", "ISO-10646/UCS2/")
-BUILTIN_ALIAS ("OSF00010102//", "ISO-10646/UCS2/")
+BUILTIN_ALIAS ("OSF00010100//", "ISO-10646/UCS2/") /* level 1 */
+BUILTIN_ALIAS ("OSF00010101//", "ISO-10646/UCS2/") /* level 2 */
+BUILTIN_ALIAS ("OSF00010102//", "ISO-10646/UCS2/") /* level 3 */
 
 BUILTIN_TRANSFORMATION (NULL, "ISO-10646/UCS2/", 15, "INTERNAL",
 			1, "=ucs2->INTERNAL",
@@ -71,12 +81,34 @@ BUILTIN_TRANSFORMATION (NULL, "INTERNAL", 8, "ISO-10646/UCS2/",
 			4, 4, 2, 2)
 
 
+#if BYTE_ORDER == BIG_ENDIAN
+BUILTIN_ALIAS ("UNICODEBIG//", "ISO-10646/UCS2/")
+BUILTIN_ALIAS ("UCS-2BE//", "ISO-10646/UCS2/")
+
+BUILTIN_ALIAS ("UCS-2LE//", "UNICODELITTLE//")
+
 BUILTIN_TRANSFORMATION (NULL, "UNICODELITTLE//", 15, "INTERNAL",
-			1, "=ucs2little->INTERNAL",
-			__gconv_transform_ucs2little_internal, NULL, NULL,
+			1, "=ucs2reverse->INTERNAL",
+			__gconv_transform_ucs2reverse_internal, NULL, NULL,
 			2, 2, 4, 4)
 
 BUILTIN_TRANSFORMATION (NULL, "INTERNAL", 8, "UNICODELITTLE//",
-			1, "=INTERNAL->ucs2little",
-			__gconv_transform_internal_ucs2little, NULL, NULL,
+			1, "=INTERNAL->ucs2reverse",
+			__gconv_transform_internal_ucs2reverse, NULL, NULL,
+			4, 4, 2, 2)
+#else
+BUILTIN_ALIAS ("UNICODELITTLE//", "ISO-10646/UCS2/")
+BUILTIN_ALIAS ("UCS-2LE//", "ISO-10646/UCS2/")
+
+BUILTIN_ALIAS ("UCS-2BE//", "UNICODEBIG//")
+
+BUILTIN_TRANSFORMATION (NULL, "UNICODEBIG//", 15, "INTERNAL",
+			1, "=ucs2reverse->INTERNAL",
+			__gconv_transform_ucs2reverse_internal, NULL, NULL,
+			2, 2, 4, 4)
+
+BUILTIN_TRANSFORMATION (NULL, "INTERNAL", 8, "UNICODEBIG//",
+			1, "=INTERNAL->ucs2reverse",
+			__gconv_transform_internal_ucs2reverse, NULL, NULL,
 			4, 4, 2, 2)
+#endif
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h
index da9e012794..6b81526594 100644
--- a/iconv/gconv_int.h
+++ b/iconv/gconv_int.h
@@ -169,9 +169,12 @@ __BUILTIN_TRANS (__gconv_transform_utf8_internal);
 __BUILTIN_TRANS (__gconv_transform_internal_utf8);
 __BUILTIN_TRANS (__gconv_transform_ucs2_internal);
 __BUILTIN_TRANS (__gconv_transform_internal_ucs2);
+__BUILTIN_TRANS (__gconv_transform_ucs2reverse_internal);
+__BUILTIN_TRANS (__gconv_transform_internal_ucs2reverse);
 __BUILTIN_TRANS (__gconv_transform_ucs2little_internal);
 __BUILTIN_TRANS (__gconv_transform_internal_ucs2little);
 __BUILTIN_TRANS (__gconv_transform_internal_ucs4);
+__BUILTIN_TRANS (__gconv_transform_internal_ucs4le);
 __BUILTIN_TRANS (__gconv_transform_internal_utf16);
 __BUILTIN_TRANS (__gconv_transform_utf16_internal);
 # undef __BUITLIN_TRANS
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c
index 31e7970847..89c0384b8d 100644
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@@ -105,6 +105,61 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend,
 #include <iconv/skeleton.c>
 
 
+/* Similarly for the other byte order.  */
+#define DEFINE_INIT		0
+#define DEFINE_FINI		0
+#define MIN_NEEDED_FROM		4
+#define MIN_NEEDED_TO		4
+#define FROM_DIRECTION		1
+#define FROM_LOOP		internal_ucs4le_loop
+#define TO_LOOP			internal_ucs4le_loop /* This is not used.  */
+#define FUNCTION_NAME		__gconv_transform_internal_ucs4le
+
+
+static inline int
+internal_ucs4le_loop (const unsigned char **inptrp, const unsigned char *inend,
+		      unsigned char **outptrp, unsigned char *outend,
+		      mbstate_t *state, void *data, size_t *converted)
+{
+  const unsigned char *inptr = *inptrp;
+  unsigned char *outptr = *outptrp;
+  size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
+  int result;
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+  /* Sigh, we have to do some real work.  */
+  size_t cnt;
+
+  for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
+    *((uint32_t *) outptr)++ = bswap_32 (*(uint32_t *) inptr);
+
+  *inptrp = inptr;
+  *outptrp = outptr;
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  /* Simply copy the data.  */
+  *inptrp = inptr + n_convert * 4;
+  *outptrp = __mempcpy (outptr, inptr, n_convert * 4);
+#else
+# error "This endianess is not supported."
+#endif
+
+  /* Determine the status.  */
+  if (*outptrp == outend)
+    result = __GCONV_FULL_OUTPUT;
+  else if (*inptrp == inend)
+    result = __GCONV_EMPTY_INPUT;
+  else
+    result = __GCONV_INCOMPLETE_INPUT;
+
+  if (converted != NULL)
+    converted += n_convert;
+
+  return result;
+}
+
+#include <iconv/skeleton.c>
+
+
 /* Convert from ISO 646-IRV to the internal (UCS4-like) format.  */
 #define DEFINE_INIT		0
 #define DEFINE_FINI		0
@@ -408,7 +463,7 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend,
 #define FROM_DIRECTION		1
 #define FROM_LOOP		ucs2little_internal_loop
 #define TO_LOOP			ucs2little_internal_loop /* This is not used.*/
-#define FUNCTION_NAME		__gconv_transform_ucs2little_internal
+#define FUNCTION_NAME		__gconv_transform_ucs2reverse_internal
 
 #define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
 #define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
@@ -433,7 +488,7 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend,
 #define FROM_DIRECTION		1
 #define FROM_LOOP		internal_ucs2little_loop
 #define TO_LOOP			internal_ucs2little_loop /* This is not used.*/
-#define FUNCTION_NAME		__gconv_transform_internal_ucs2little
+#define FUNCTION_NAME		__gconv_transform_internal_ucs2reverse
 
 #define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
 #define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO