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) 2002-2004 Tim J. Robbins.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
*** 27,54 ****
  
  #include "lint.h"
  #include <limits.h>
  #include <stdlib.h>
  #include <string.h>
  #include <wchar.h>
  #include "mblocal.h"
  
  size_t
! wcsnrtombs(char *_RESTRICT_KYWD dst, const wchar_t **_RESTRICT_KYWD src,
!     size_t nwc, size_t len, mbstate_t *_RESTRICT_KYWD ps)
  {
          static mbstate_t mbs;
  
          if (ps == NULL)
                  ps = &mbs;
!         return (__wcsnrtombs(dst, src, nwc, len, ps));
  }
  
  size_t
! __wcsnrtombs_std(char *_RESTRICT_KYWD dst, const wchar_t **_RESTRICT_KYWD src,
      size_t nwc, size_t len, mbstate_t *_RESTRICT_KYWD ps)
  {
          mbstate_t mbsbak;
          char buf[MB_LEN_MAX];
          const wchar_t *s;
          size_t nbytes;
          size_t nb;
--- 28,66 ----
  
  #include "lint.h"
  #include <limits.h>
  #include <stdlib.h>
  #include <string.h>
+ #include <locale.h>
  #include <wchar.h>
  #include "mblocal.h"
+ #include "localeimpl.h"
+ #include "lctype.h"
  
  size_t
! wcsnrtombs_l(char *_RESTRICT_KYWD dst, const wchar_t **_RESTRICT_KYWD src,
!     size_t nwc, size_t len, mbstate_t *_RESTRICT_KYWD ps, locale_t loc)
  {
          static mbstate_t mbs;
  
          if (ps == NULL)
                  ps = &mbs;
!         return (loc->ctype->lc_wcsnrtombs(dst, src, nwc, len, ps));
  }
  
  size_t
! wcsnrtombs(char *_RESTRICT_KYWD dst, const wchar_t **_RESTRICT_KYWD src,
      size_t nwc, size_t len, mbstate_t *_RESTRICT_KYWD ps)
  {
+         return (wcsnrtombs_l(dst, src, nwc, len, ps, uselocale(NULL)));
+ }
+ 
+ size_t
+ __wcsnrtombs_std(char *_RESTRICT_KYWD dst, const wchar_t **_RESTRICT_KYWD src,
+     size_t nwc, size_t len, mbstate_t *_RESTRICT_KYWD ps,
+     wcrtomb_pfn_t pwcrtomb)
+ {
          mbstate_t mbsbak;
          char buf[MB_LEN_MAX];
          const wchar_t *s;
          size_t nbytes;
          size_t nb;
*** 56,66 ****
          s = *src;
          nbytes = 0;
  
          if (dst == NULL) {
                  while (nwc-- > 0) {
!                         if ((nb = __wcrtomb(buf, *s, ps)) == (size_t)-1)
                                  /* Invalid character - wcrtomb() sets errno. */
                                  return ((size_t)-1);
                          else if (*s == L'\0')
                                  return (nbytes + nb - 1);
                          s++;
--- 68,78 ----
          s = *src;
          nbytes = 0;
  
          if (dst == NULL) {
                  while (nwc-- > 0) {
!                         if ((nb = pwcrtomb(buf, *s, ps)) == (size_t)-1)
                                  /* Invalid character - wcrtomb() sets errno. */
                                  return ((size_t)-1);
                          else if (*s == L'\0')
                                  return (nbytes + nb - 1);
                          s++;
*** 70,80 ****
          }
  
          while (len > 0 && nwc-- > 0) {
                  if (len > (size_t)MB_CUR_MAX) {
                          /* Enough space to translate in-place. */
!                         if ((nb = __wcrtomb(dst, *s, ps)) == (size_t)-1) {
                                  *src = s;
                                  return ((size_t)-1);
                          }
                  } else {
                          /*
--- 82,92 ----
          }
  
          while (len > 0 && nwc-- > 0) {
                  if (len > (size_t)MB_CUR_MAX) {
                          /* Enough space to translate in-place. */
!                         if ((nb = pwcrtomb(dst, *s, ps)) == (size_t)-1) {
                                  *src = s;
                                  return ((size_t)-1);
                          }
                  } else {
                          /*
*** 83,93 ****
                           * We need to save a copy of the conversion state
                           * here so we can restore it if the multibyte
                           * character is too long for the buffer.
                           */
                          mbsbak = *ps;
!                         if ((nb = __wcrtomb(buf, *s, ps)) == (size_t)-1) {
                                  *src = s;
                                  return ((size_t)-1);
                          }
                          if (nb > (int)len) {
                                  /* MB sequence for character won't fit. */
--- 95,105 ----
                           * We need to save a copy of the conversion state
                           * here so we can restore it if the multibyte
                           * character is too long for the buffer.
                           */
                          mbsbak = *ps;
!                         if ((nb = pwcrtomb(buf, *s, ps)) == (size_t)-1) {
                                  *src = s;
                                  return ((size_t)-1);
                          }
                          if (nb > (int)len) {
                                  /* MB sequence for character won't fit. */