b6cbf7203b
This patch imports the unmodified current version of NetBSD libc. The NetBSD includes are in /nbsd_include, while the libc code itself is split between lib/nbsd_libc and common/lib/libc.
504 lines
9.9 KiB
C
504 lines
9.9 KiB
C
/* $NetBSD: citrus_none.c,v 1.18 2008/06/14 16:01:07 tnozaki Exp $ */
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/*-
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* Copyright (c)2002 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: citrus_none.c,v 1.18 2008/06/14 16:01:07 tnozaki Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <wchar.h>
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#include <sys/types.h>
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#include "citrus_namespace.h"
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#include "citrus_types.h"
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#include "citrus_module.h"
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#include "citrus_ctype.h"
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#include "citrus_none.h"
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#include "citrus_stdenc.h"
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/* ---------------------------------------------------------------------- */
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_CITRUS_CTYPE_DECLS(NONE);
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_CITRUS_CTYPE_DEF_OPS(NONE);
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/* ---------------------------------------------------------------------- */
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_init(void ** __restrict cl, void * __restrict var,
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size_t lenvar, size_t lenps)
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{
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*cl = NULL;
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return (0);
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}
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static void
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/*ARGSUSED*/
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_citrus_NONE_ctype_uninit(void *cl)
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{
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}
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static unsigned
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/*ARGSUSED*/
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_citrus_NONE_ctype_get_mb_cur_max(void *cl)
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{
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return (1);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_mblen(void * __restrict cl, const char * __restrict s,
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size_t n, int * __restrict nresult)
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{
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if (!s) {
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*nresult = 0; /* state independent */
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return (0);
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}
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if (n==0) {
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*nresult = -1;
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return (EILSEQ);
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}
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*nresult = (*s == 0) ? 0 : 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_mbrlen(void * __restrict cl, const char * __restrict s,
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size_t n, void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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if (!s) {
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*nresult = 0;
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return (0);
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}
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if (n==0) {
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*nresult = (size_t)-2;
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return (0);
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}
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*nresult = (*s == 0) ? 0 : 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_mbrtowc(void * __restrict cl, wchar_t * __restrict pwc,
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const char * __restrict s, size_t n,
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void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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if (s == NULL) {
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*nresult = 0;
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return (0);
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}
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if (n == 0) {
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*nresult = (size_t)-2;
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return (0);
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}
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if (pwc != NULL)
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*pwc = (wchar_t)(unsigned char) *s;
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*nresult = *s == '\0' ? 0 : 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_mbsinit(void * __restrict cl,
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const void * __restrict pspriv,
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int * __restrict nresult)
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{
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*nresult = 1; /* always initial state */
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_mbsrtowcs(void * __restrict cl, wchar_t * __restrict pwcs,
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const char ** __restrict s, size_t n,
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void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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int cnt;
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const char *s0;
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/* if pwcs is NULL, ignore n */
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if (pwcs == NULL)
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n = 1; /* arbitrary >0 value */
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cnt = 0;
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s0 = *s; /* to keep *s unchanged for now, use copy instead. */
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while (n > 0) {
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if (pwcs != NULL) {
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*pwcs = (wchar_t)(unsigned char)*s0;
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}
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if (*s0 == '\0') {
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s0 = NULL;
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break;
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}
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s0++;
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if (pwcs != NULL) {
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pwcs++;
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n--;
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}
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cnt++;
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}
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if (pwcs)
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*s = s0;
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*nresult = (size_t)cnt;
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return (0);
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}
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static int
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_citrus_NONE_ctype_mbstowcs(void * __restrict cl, wchar_t * __restrict wcs,
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const char * __restrict s, size_t n,
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size_t * __restrict nresult)
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{
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const char *rs = s;
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return (_citrus_NONE_ctype_mbsrtowcs(cl, wcs, &rs, n, NULL, nresult));
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_mbtowc(void * __restrict cl, wchar_t * __restrict pwc,
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const char * __restrict s, size_t n,
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int * __restrict nresult)
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{
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if (s == NULL) {
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*nresult = 0; /* state independent */
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return (0);
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}
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if (n == 0) {
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return (EILSEQ);
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}
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if (pwc == NULL) {
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if (*s == '\0') {
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*nresult = 0;
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} else {
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*nresult = 1;
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}
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return (0);
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}
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*pwc = (wchar_t)(unsigned char)*s;
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*nresult = *s == '\0' ? 0 : 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_wcrtomb(void * __restrict cl, char * __restrict s,
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wchar_t wc, void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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if ((wc&~0xFFU) != 0) {
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*nresult = (size_t)-1;
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return (EILSEQ);
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}
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*nresult = 1;
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if (s!=NULL)
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*s = (char)wc;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_wcsrtombs(void * __restrict cl, char * __restrict s,
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const wchar_t ** __restrict pwcs, size_t n,
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void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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size_t count;
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const wchar_t *pwcs0;
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pwcs0 = *pwcs;
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count = 0;
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if (s == NULL)
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n = 1;
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while (n > 0) {
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if ((*pwcs0 & ~0xFFU) != 0) {
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*nresult = (size_t)-1;
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return (EILSEQ);
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}
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if (s != NULL) {
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*s++ = (char)*pwcs0;
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n--;
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}
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if (*pwcs0 == L'\0') {
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pwcs0 = NULL;
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break;
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}
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count++;
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pwcs0++;
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}
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if (s != NULL)
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*pwcs = pwcs0;
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*nresult = count;
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return (0);
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}
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static int
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_citrus_NONE_ctype_wcstombs(void * __restrict cl, char * __restrict s,
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const wchar_t * __restrict pwcs, size_t n,
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size_t * __restrict nresult)
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{
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const wchar_t *rpwcs = pwcs;
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return (_citrus_NONE_ctype_wcsrtombs(cl, s, &rpwcs, n, NULL, nresult));
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}
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static int
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_citrus_NONE_ctype_wctomb(void * __restrict cl, char * __restrict s,
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wchar_t wc, int * __restrict nresult)
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{
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int ret;
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size_t nr;
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if (s == 0) {
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/*
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* initialize state here.
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* (nothing to do for us.)
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*/
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*nresult = 0; /* we're state independent */
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return (0);
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}
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ret = _citrus_NONE_ctype_wcrtomb(cl, s, wc, NULL, &nr);
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*nresult = (int)nr;
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return (ret);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_btowc(_citrus_ctype_rec_t * __restrict cc,
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int c, wint_t * __restrict wcresult)
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{
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if (c == EOF || c & ~0xFF)
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*wcresult = WEOF;
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else
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*wcresult = (wint_t)c;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_ctype_wctob(_citrus_ctype_rec_t * __restrict cc,
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wint_t wc, int * __restrict cresult)
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{
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if (wc == WEOF || wc & ~0xFF)
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*cresult = EOF;
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else
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*cresult = (int)wc;
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return (0);
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}
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/* ---------------------------------------------------------------------- */
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_CITRUS_STDENC_DECLS(NONE);
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_CITRUS_STDENC_DEF_OPS(NONE);
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struct _citrus_stdenc_traits _citrus_NONE_stdenc_traits = {
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0, /* et_state_size */
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1, /* mb_cur_max */
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};
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_init(struct _citrus_stdenc * __restrict ce,
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const void *var, size_t lenvar,
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struct _citrus_stdenc_traits * __restrict et)
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{
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et->et_state_size = 0;
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et->et_mb_cur_max = 1;
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ce->ce_closure = NULL;
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return (0);
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}
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static void
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/*ARGSUSED*/
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_citrus_NONE_stdenc_uninit(struct _citrus_stdenc *ce)
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{
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_init_state(struct _citrus_stdenc * __restrict ce,
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void * __restrict ps)
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{
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_mbtocs(struct _citrus_stdenc * __restrict ce,
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_csid_t *csid, _index_t *idx,
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const char **s, size_t n,
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void *ps, size_t *nresult)
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{
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_DIAGASSERT(csid != NULL && idx != NULL);
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if (n<1) {
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*nresult = (size_t)-2;
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return (0);
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}
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*csid = 0;
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*idx = (_index_t)(unsigned char)*(*s)++;
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*nresult = *idx == 0 ? 0 : 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_cstomb(struct _citrus_stdenc * __restrict ce,
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char *s, size_t n,
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_csid_t csid, _index_t idx,
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void *ps, size_t *nresult)
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{
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if (csid == _CITRUS_CSID_INVALID) {
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*nresult = 0;
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return (0);
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}
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if (n<1) {
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*nresult = (size_t)-1;
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return (E2BIG);
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}
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if (csid != 0 || (idx&0xFF) != idx)
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return (EILSEQ);
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*s = (char)idx;
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*nresult = 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_mbtowc(struct _citrus_stdenc * __restrict ce,
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_wc_t * __restrict pwc,
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const char ** __restrict s, size_t n,
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void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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if (s == NULL) {
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*nresult = 0;
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return (0);
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}
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if (n == 0) {
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*nresult = (size_t)-2;
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return (0);
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}
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if (pwc != NULL)
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*pwc = (_wc_t)(unsigned char) **s;
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*nresult = *s == '\0' ? 0 : 1;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_wctomb(struct _citrus_stdenc * __restrict ce,
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char * __restrict s, size_t n,
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_wc_t wc, void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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if ((wc&~0xFFU) != 0) {
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*nresult = (size_t)-1;
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return (EILSEQ);
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}
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if (n==0) {
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*nresult = (size_t)-1;
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return (E2BIG);
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}
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*nresult = 1;
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if (s!=NULL && n>0)
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*s = (char)wc;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_put_state_reset(struct _citrus_stdenc * __restrict ce,
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char * __restrict s, size_t n,
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void * __restrict pspriv,
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size_t * __restrict nresult)
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{
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*nresult = 0;
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_NONE_stdenc_get_state_desc(struct _stdenc * __restrict ce,
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void * __restrict ps,
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int id,
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struct _stdenc_state_desc * __restrict d)
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{
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int ret = 0;
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switch (id) {
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case _STDENC_SDID_GENERIC:
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d->u.generic.state = _STDENC_SDGEN_INITIAL;
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break;
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default:
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ret = EOPNOTSUPP;
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}
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return ret;
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}
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