projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 9385eb3d | 1 | /*- |
| 224c7076 A |
2 | * Copyright (c) 2002-2004 Tim J. Robbins. |
| 3 | * All rights reserved. | |
| e9ce8d39 A |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| e9ce8d39 | 13 | * |
| 224c7076 | 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| e9ce8d39 A |
15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 224c7076 | 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| e9ce8d39 A |
18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 24 | * SUCH DAMAGE. | |
| 25 | */ | |
| 26 | ||
| 9385eb3d | 27 | #include <sys/cdefs.h> |
| 224c7076 | 28 | __FBSDID("$FreeBSD: src/lib/libc/locale/mblen.c,v 1.9 2004/07/29 06:18:40 tjr Exp $"); |
| e9ce8d39 | 29 | |
| 224c7076 A |
30 | #include "xlocale_private.h" |
| 31 | ||
| 32 | #include <stdlib.h> | |
| 33 | #include <wchar.h> | |
| 34 | #include "mblocal.h" | |
| e9ce8d39 | 35 | |
| 9385eb3d | 36 | int |
| 224c7076 | 37 | mblen_l(const char *s, size_t n, locale_t loc) |
| e9ce8d39 | 38 | { |
| 224c7076 A |
39 | static const mbstate_t initial; |
| 40 | size_t rval; | |
| 41 | ||
| 42 | NORMALIZE_LOCALE(loc); | |
| 43 | if (s == NULL) { | |
| 44 | /* No support for state dependent encodings. */ | |
| 45 | loc->__mbs_mblen = initial; | |
| 46 | return (0); | |
| 47 | } | |
| 48 | rval = loc->__lc_ctype->__mbrtowc(NULL, s, n, &loc->__mbs_mblen, loc); | |
| 49 | if (rval == (size_t)-1 || rval == (size_t)-2) | |
| 50 | return (-1); | |
| 51 | return ((int)rval); | |
| 52 | } | |
| e9ce8d39 | 53 | |
| 224c7076 A |
54 | int |
| 55 | mblen(const char *s, size_t n) | |
| 56 | { | |
| 57 | return mblen_l(s, n, __current_locale()); | |
| e9ce8d39 | 58 | } |