1 files changed, 119 insertions, 0 deletions
diff --git a/winsup/cygwin/local_includes/wchar.h b/winsup/cygwin/local_includes/wchar.h
new file mode 100644
index 000000000..0484b27d5
--- /dev/null
+++ b/winsup/cygwin/local_includes/wchar.h
@@ -0,0 +1,119 @@
+/* wchar.h: Extra wchar defs
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _CYGWIN_WCHAR_H
+#define _CYGWIN_WCHAR_H
+
+#include_next <wchar.h>
+
+/* Internal headers from newlib */
+#include "../locale/setlocale.h"
+
+#define ENCODING_LEN 31
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int mbtowc_f (struct _reent *, wchar_t *, const char *, size_t,
+		      mbstate_t *);
+typedef mbtowc_f *mbtowc_p;
+
+extern mbtowc_f __ascii_mbtowc;
+extern mbtowc_f __utf8_mbtowc;
+extern mbtowc_p __iso_mbtowc (int);
+extern mbtowc_p __cp_mbtowc (int);
+
+#define __MBTOWC (__get_current_locale ()->mbtowc)
+
+typedef int wctomb_f (struct _reent *, char *, wchar_t, mbstate_t *);
+typedef wctomb_f *wctomb_p;
+
+extern wctomb_f __ascii_wctomb;
+extern wctomb_f __utf8_wctomb;
+
+#define __WCTOMB (__get_current_locale ()->wctomb)
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __INSIDE_CYGWIN__
+#ifdef __cplusplus
+extern size_t _sys_wcstombs (char *dst, size_t len, const wchar_t *src,
+			     size_t nwc, bool is_path);
+extern size_t _sys_wcstombs_alloc (char **dst_p, int type, const wchar_t *src,
+				   size_t nwc, bool is_path);
+
+static inline size_t
+sys_wcstombs (char *dst, size_t len, const wchar_t * src,
+	      size_t nwc = (size_t) -1)
+{
+  return _sys_wcstombs (dst, len, src, nwc, true);
+}
+
+static inline size_t
+sys_wcstombs_no_path (char *dst, size_t len, const wchar_t * src,
+		      size_t nwc = (size_t) -1)
+{
+  return _sys_wcstombs (dst, len, src, nwc, false);
+}
+
+static inline size_t
+sys_wcstombs_alloc (char **dst_p, int type, const wchar_t *src,
+		    size_t nwc = (size_t) -1)
+{
+  return _sys_wcstombs_alloc (dst_p, type, src, nwc, true);
+}
+
+static inline size_t
+sys_wcstombs_alloc_no_path (char **dst_p, int type, const wchar_t *src,
+			    size_t nwc = (size_t) -1)
+{
+  return _sys_wcstombs_alloc (dst_p, type, src, nwc, false);
+}
+
+size_t _sys_mbstowcs (mbtowc_p, wchar_t *, size_t, const char *,
+		      size_t = (size_t) -1);
+
+static inline size_t
+sys_mbstowcs (wchar_t * dst, size_t dlen, const char *src,
+	      size_t nms = (size_t) -1)
+{
+  mbtowc_p f_mbtowc = (__MBTOWC == __ascii_mbtowc) ? __utf8_mbtowc : __MBTOWC;
+  return _sys_mbstowcs (f_mbtowc, dst, dlen, src, nms);
+}
+
+size_t sys_mbstowcs_alloc (wchar_t **, int, const char *, size_t = (size_t) -1);
+
+static inline size_t
+sys_mbstouni (PUNICODE_STRING dst, int type, const char *src,
+	      size_t nms = (size_t) -1)
+{
+  /* sys_mbstowcs returns length *excluding* trailing \0 */
+  size_t len = sys_mbstowcs (dst->Buffer, type, src, nms);
+  dst->Length = len * sizeof (WCHAR);
+  dst->MaximumLength = dst->Length + sizeof (WCHAR);
+  return dst->Length;
+}
+
+static inline size_t
+sys_mbstouni_alloc (PUNICODE_STRING dst, int type, const char *src,
+		    size_t nms = (size_t) -1)
+{
+  /* sys_mbstowcs returns length *including* trailing \0 */
+  size_t len = sys_mbstowcs_alloc (&dst->Buffer, type, src, nms);
+  dst->MaximumLength = len * sizeof (WCHAR);
+  dst->Length = dst->MaximumLength - sizeof (WCHAR);
+  return dst->MaximumLength;
+}
+
+#endif /* __cplusplus */
+#endif /* __INSIDE_CYGWIN__ */
+
+#endif /* _CYGWIN_WCHAR_H */