Libc-498.tar.gz

[apple/libc.git] / locale / FreeBSD / wcsrtombs.c

diff --git a/locale/FreeBSD/wcsrtombs.c b/locale/FreeBSD/wcsrtombs.c
index 70e0f5f0ef387315c7f5a65affbff34a5fe03dd9..61e5432de749b18eb09e55fdf53ce45224ca0044 100644 (file)
--- a/locale/FreeBSD/wcsrtombs.c
+++ b/locale/FreeBSD/wcsrtombs.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2002 Tim J. Robbins.
+ * Copyright (c) 2002-2004 Tim J. Robbins.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,66 +25,21 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/locale/wcsrtombs.c,v 1.2 2002/09/06 11:23:45 tjr Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/locale/wcsrtombs.c,v 1.6 2004/07/21 10:54:57 tjr Exp $");
 
-#include <errno.h>
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
+#include "mblocal.h"
 
 size_t
 wcsrtombs(char * __restrict dst, const wchar_t ** __restrict src, size_t len,
-    mbstate_t * __restrict ps __unused)
+    mbstate_t * __restrict ps)
 {
-       char buf[MB_LEN_MAX];
-       const wchar_t *s;
-       size_t nbytes;
-       int nb;
+       static mbstate_t mbs;
 
-       s = *src;
-       nbytes = 0;
-
-       if (dst == NULL) {
-               for (;;) {
-                       if ((nb = (int)wcrtomb(buf, *s, NULL)) < 0)
-                               /* Invalid character - wcrtomb() sets errno. */
-                               return ((size_t)-1);
-                       else if (*s == L'\0')
-                               return (nbytes + nb - 1);
-                       s++;
-                       nbytes += nb;
-               }
-               /*NOTREACHED*/
-       }
-
-       while (len > 0) {
-               if (len > (size_t)MB_CUR_MAX) {
-                       /* Enough space to translate in-place. */
-                       if ((nb = (int)wcrtomb(dst, *s, NULL)) < 0) {
-                               *src = s;
-                               return ((size_t)-1);
-                       }
-               } else {
-                       /* May not be enough space; use temp. buffer. */
-                       if ((nb = (int)wcrtomb(buf, *s, NULL)) < 0) {
-                               *src = s;
-                               return ((size_t)-1);
-                       }
-                       if (nb > (int)len)
-                               /* MB sequence for character won't fit. */
-                               break;
-                       memcpy(dst, buf, nb);
-               }
-               if (*s == L'\0') {
-                       *src = NULL;
-                       return (nbytes + nb - 1);
-               }
-               s++;
-               dst += nb;
-               len -= nb;
-               nbytes += nb;
-       }
-       *src = s;
-       return (nbytes);
+       if (ps == NULL)
+               ps = &mbs;
+       return (__wcsnrtombs(dst, src, SIZE_T_MAX, len, ps));
 }