X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/9385eb3d10ebe5eb398c52040ec3dbfba9b0cdcf..fbd86d4cc20b02a10edcca92fb7ae0a143e63cc4:/locale/FreeBSD/mbstowcs.c

diff --git a/locale/FreeBSD/mbstowcs.c b/locale/FreeBSD/mbstowcs.c
index 323c788..ab2e849 100644
--- a/locale/FreeBSD/mbstowcs.c
+++ b/locale/FreeBSD/mbstowcs.c
@@ -1,9 +1,6 @@
 /*-
- * Copyright (c) 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Paul Borman at Krystal Technologies.
+ * Copyright (c) 2002-2004 Tim J. Robbins.
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -13,18 +10,11 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
@@ -35,54 +25,19 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/locale/mbstowcs.c,v 1.6 2002/11/09 04:13:26 tjr Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/locale/mbstowcs.c,v 1.11 2004/07/21 10:54:57 tjr Exp $");
 
-#include <errno.h>
-#include <stdlib.h>
 #include <limits.h>
-#include <stddef.h>
-#include <rune.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include "mblocal.h"
 
 size_t
 mbstowcs(wchar_t * __restrict pwcs, const char * __restrict s, size_t n)
 {
-	const char *e;
-	int cnt;
-	rune_t r;
-
-	if (s == NULL) {
-		errno = EINVAL;
-		return (-1);
-	}
-
-	if (pwcs == NULL) {
-		/* Convert and count only, do not store. */
-		cnt = 0;
-		while ((r = sgetrune(s, MB_LEN_MAX, &e)) != _INVALID_RUNE &&
-		    r != 0) {
-			s = e;
-			cnt++;
-		}
-		if (r == _INVALID_RUNE) {
-			errno = EILSEQ;
-			return (-1);
-		}
-		return (cnt);
-	}
-
-	/* Convert, store and count characters. */
-	cnt = 0;
-	while (n-- > 0) {
-		*pwcs = sgetrune(s, MB_LEN_MAX, &e);
-		if (*pwcs == _INVALID_RUNE) {
-			errno = EILSEQ;
-			return (-1);
-		}
-		if (*pwcs++ == L'\0')
-			break;
-		s = e;
-		++cnt;
-	}
+	static const mbstate_t initial;
+	mbstate_t mbs;
 
-	return (cnt);
+	mbs = initial;
+	return (__mbsnrtowcs(pwcs, &s, SIZE_T_MAX, n, &mbs));
 }