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1 /* $NetBSD: multibyte_sb.c,v 1.5 2004/07/21 20:27:46 tshiozak Exp $ */
4 * Copyright (c) 1991 The Regents of the University of California.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <LibConfig.h>
32 #include <sys/EfiCdefs.h>
33 #if defined(LIBC_SCCS) && !defined(lint)
35 static char *sccsid
= "from: @(#)multibyte.c 5.1 (Berkeley) 2/18/91";
37 __RCSID("$NetBSD: multibyte_sb.c,v 1.5 2004/07/21 20:27:46 tshiozak Exp $");
39 #endif /* LIBC_SCCS and not lint */
47 * Stub multibyte character functions.
48 * This cheezy implementation is fixed to the native single-byte
54 mbsinit(const mbstate_t *ps
)
69 /* ps appears to be unused */
71 if (s
== NULL
|| *s
== '\0')
87 return (int)mbrlen(s
, n
, NULL
);
100 /* pwc may be NULL */
102 /* ps appears to be unused */
121 /* pwc may be NULL */
124 return (int)mbrtowc(pwc
, s
, n
, NULL
);
137 /* ps appears to be unused */
140 return 1; /* Spec. says this should be 1. */
154 If s is NULL just return if MB Characters have state
160 return (int)wcrtomb(s
, wchar
, NULL
);
174 /* pwcs may be NULL */
176 /* ps appears to be unused */
184 if ((*pwcs
++ = (wchar_t) *(*s
)++) == 0) {
192 if (((wchar_t)*(*s
)++) == 0)
210 /* pwcs may be NULL */
213 return mbsrtowcs(pwcs
, &s
, n
, NULL
);
220 const wchar_t **pwcs
,
228 /* pwcs may be NULL */
229 /* ps appears to be unused */
231 if (pwcs
== NULL
|| *pwcs
== NULL
)
235 while (*(*pwcs
)++ != 0)
242 if ((*s
++ = (char) *(*pwcs
)++) == 0) {
262 /* pwcs may be NULL */
264 return wcsrtombs(s
, &pwcs
, n
, NULL
);
270 if (c
== EOF
|| c
& ~0xFF)
278 /* wctob needs to be consistent with wcrtomb.
279 if wcrtomb says that a character is representable in 1 byte,
280 which this implementation always says, then wctob needs to
281 also represent the character as 1 byte.
286 return (int)(c
& 0xFF);