2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Approved by: TBD

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2013 Garrett D'Amore <garrett@damore.org>
   * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  /*        All Rights Reserved   */
*** 33,65 ****
  
  #include "lint.h"
  #include <sys/types.h>
  #include <strings.h>
  #include <ctype.h>
  
  int
! strncasecmp(const char *s1, const char *s2, size_t n)
  {
-         extern int charset_is_ascii;
          extern int ascii_strncasecmp(const char *s1, const char *s2, size_t n);
!         int *cm;
          const uchar_t *us1;
          const uchar_t *us2;
  
          /*
           * If we are in a locale that uses the ASCII character set
           * (C or POSIX), use the fast ascii_strncasecmp() function.
           */
!         if (charset_is_ascii)
                  return (ascii_strncasecmp(s1, s2, n));
  
!         cm = __trans_lower;
          us1 = (const uchar_t *)s1;
          us2 = (const uchar_t *)s2;
  
          while (n != 0 && cm[*us1] == cm[*us2++]) {
                  if (*us1++ == '\0')
                          return (0);
                  n--;
          }
          return (n == 0 ? 0 : cm[*us1] - cm[*(us2 - 1)]);
  }
--- 34,75 ----
  
  #include "lint.h"
  #include <sys/types.h>
  #include <strings.h>
  #include <ctype.h>
+ #include <locale.h>
+ #include "lctype.h"
+ #include "localeimpl.h"
  
  int
! strncasecmp_l(const char *s1, const char *s2, size_t n, locale_t loc)
  {
          extern int ascii_strncasecmp(const char *s1, const char *s2, size_t n);
!         const int *cm;
          const uchar_t *us1;
          const uchar_t *us2;
+         const struct lc_ctype *lct = loc->ctype;
  
          /*
           * If we are in a locale that uses the ASCII character set
           * (C or POSIX), use the fast ascii_strncasecmp() function.
           */
!         if (lct->lc_is_ascii)
                  return (ascii_strncasecmp(s1, s2, n));
  
!         cm = lct->lc_trans_lower;
          us1 = (const uchar_t *)s1;
          us2 = (const uchar_t *)s2;
  
          while (n != 0 && cm[*us1] == cm[*us2++]) {
                  if (*us1++ == '\0')
                          return (0);
                  n--;
          }
          return (n == 0 ? 0 : cm[*us1] - cm[*(us2 - 1)]);
+ }
+ 
+ int
+ strncasecmp(const char *s1, const char *s2, size_t n)
+ {
+         return (strncasecmp_l(s1, s2, n, uselocale(NULL)));
  }