New modules 'uniconv/u16-strconv-to-enc', 'uniconv/u32-strconv-to-enc'.

1 files changed, 65 insertions, 0 deletions

diff --git a/lib/uniconv/u-strconv-to-enc.h b/lib/uniconv/u-strconv-to-enc.h
new file mode 100644
index 0000000000..f180024df6
--- /dev/null
+++ b/lib/uniconv/u-strconv-to-enc.h
@@ -0,0 +1,65 @@
+/* Conversion from UTF-16/UTF-32 to legacy encodings.
+   Copyright (C) 2002, 2006-2007 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library General Public License as published
+   by the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+   USA.  */
+
+char *
+FUNC (const UNIT *string,
+      const char *tocode,
+      enum iconv_ilseq_handler handler)
+{
+#if HAVE_UTF_NAME
+  char *result = NULL;
+  size_t length = 0;
+
+  if (mem_iconveha ((const char *) string, (U_STRLEN (string) + 1) * sizeof (UNIT),
+		    UTF_NAME, tocode,
+		    handler == iconveh_question_mark, handler,
+		    NULL, &result, &length) < 0)
+    return NULL;
+  /* Verify the result has exactly one NUL byte, at the end.  */
+  if (!(length > 0 && result[length-1] == '\0' && strlen (result) == length-1))
+    {
+      free (result);
+      errno = EILSEQ;
+      return NULL;
+    }
+  return result;
+#else
+  uint8_t tmpbuf[4096];
+  size_t tmpbufsize = SIZEOF (tmpbuf);
+  uint8_t *utf8_string;
+  char *result;
+
+  utf8_string = U_TO_U8 (string, U_STRLEN (string) + 1, tmpbuf, &tmpbufsize);
+  if (utf8_string == NULL)
+    return NULL;
+  result = u8_strconv_to_encoding (utf8_string, tocode, handler);
+  if (result == NULL)
+    {
+      if (utf8_string != tmpbuf)
+	{
+	  int saved_errno = errno;
+	  free (utf8_string);
+	  errno = saved_errno;
+	}
+      return NULL;
+    }
+  if (utf8_string != tmpbuf)
+    free (utf8_string);
+  return result;
+#endif
+}