projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| e5bc3b0f PMF |
1 | /* $OpenBSD: mbrtowc_sb.c,v 1.4 2005/11/27 20:03:06 cloder Exp $ */ |
| 2 | /* $NetBSD: multibyte_sb.c,v 1.4 2003/08/07 16:43:04 agc Exp $ */ | |
| 3 | ||
| 4 | /* | |
| 5 | * Copyright (c) 1991 The Regents of the University of California. | |
| 6 | * All rights reserved. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * 3. Neither the name of the University nor the names of its contributors | |
| 17 | * may be used to endorse or promote products derived from this software | |
| 18 | * without specific prior written permission. | |
| 19 | * | |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | * SUCH DAMAGE. | |
| 31 | */ | |
| 32 | ||
| 33 | #include <errno.h> | |
| 34 | #include <stdlib.h> | |
| 35 | #include <wchar.h> | |
| 36 | ||
| 37 | /*ARGSUSED*/ | |
| 38 | size_t | |
| 39 | ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) | |
| 40 | { | |
| 41 | ||
| 42 | /* pwc may be NULL */ | |
| 43 | /* s may be NULL */ | |
| 44 | /* ps appears to be unused */ | |
| 45 | ||
| 46 | if (s == NULL) | |
| 47 | return 0; | |
| 48 | if (n == 0) | |
| 49 | return (size_t)-1; | |
| 50 | if (pwc) | |
| 51 | *pwc = (wchar_t)(unsigned char)*s; | |
| 52 | return (*s != '\0'); | |
| 53 | } |