2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>

@@ -1,6 +1,7 @@
 /*
+ * Copyright 2013 Garrett D'Amore <garrett@damore.org>
  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
  * Copyright (c) 2002, 2003 Tim J. Robbins.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

@@ -26,14 +27,16 @@
  */
 
 #include "lint.h"
 #include <stdio.h>
 #include <wchar.h>
+#include <locale.h>
+#include <xlocale.h>
 #include "mblocal.h"
 
 wint_t
-btowc(int c)
+btowc_l(int c, locale_t loc)
 {
         static const mbstate_t initial = { 0 };
         mbstate_t mbs = initial;
         char cc;
         wchar_t wc;

@@ -44,9 +47,15 @@
          * We expect mbrtowc() to return 0 or 1, hence the check for n > 1
          * which detects error return values as well as "impossible" byte
          * counts.
          */
         cc = (char)c;
-        if (__mbrtowc(&wc, &cc, 1, &mbs) > 1)
+        if (mbrtowc_l(&wc, &cc, 1, &mbs, loc) > 1)
                 return (WEOF);
         return (wc);
+}
+
+wint_t
+btowc(int c)
+{
+        return (btowc_l(c, uselocale(NULL)));
 }