14297a3b0SGarrett D'Amore /*
2*2d08521bSGarrett D'Amore * Copyright 2013 Garrett D'Amore <garrett@damore.org>
36b5e5868SGarrett D'Amore * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
44297a3b0SGarrett D'Amore * Copyright (c) 2002, 2003 Tim J. Robbins.
54297a3b0SGarrett D'Amore * All rights reserved.
64297a3b0SGarrett D'Amore *
74297a3b0SGarrett D'Amore * Redistribution and use in source and binary forms, with or without
84297a3b0SGarrett D'Amore * modification, are permitted provided that the following conditions
94297a3b0SGarrett D'Amore * are met:
104297a3b0SGarrett D'Amore * 1. Redistributions of source code must retain the above copyright
114297a3b0SGarrett D'Amore * notice, this list of conditions and the following disclaimer.
124297a3b0SGarrett D'Amore * 2. Redistributions in binary form must reproduce the above copyright
134297a3b0SGarrett D'Amore * notice, this list of conditions and the following disclaimer in the
144297a3b0SGarrett D'Amore * documentation and/or other materials provided with the distribution.
154297a3b0SGarrett D'Amore *
164297a3b0SGarrett D'Amore * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
174297a3b0SGarrett D'Amore * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
184297a3b0SGarrett D'Amore * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
194297a3b0SGarrett D'Amore * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
204297a3b0SGarrett D'Amore * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
214297a3b0SGarrett D'Amore * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
224297a3b0SGarrett D'Amore * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
234297a3b0SGarrett D'Amore * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
244297a3b0SGarrett D'Amore * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
254297a3b0SGarrett D'Amore * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
264297a3b0SGarrett D'Amore * SUCH DAMAGE.
274297a3b0SGarrett D'Amore */
284297a3b0SGarrett D'Amore
294297a3b0SGarrett D'Amore #include "lint.h"
304297a3b0SGarrett D'Amore #include <stdio.h>
314297a3b0SGarrett D'Amore #include <wchar.h>
32*2d08521bSGarrett D'Amore #include <locale.h>
33*2d08521bSGarrett D'Amore #include <xlocale.h>
344297a3b0SGarrett D'Amore #include "mblocal.h"
354297a3b0SGarrett D'Amore
364297a3b0SGarrett D'Amore wint_t
btowc_l(int c,locale_t loc)37*2d08521bSGarrett D'Amore btowc_l(int c, locale_t loc)
384297a3b0SGarrett D'Amore {
394297a3b0SGarrett D'Amore static const mbstate_t initial = { 0 };
404297a3b0SGarrett D'Amore mbstate_t mbs = initial;
414297a3b0SGarrett D'Amore char cc;
424297a3b0SGarrett D'Amore wchar_t wc;
434297a3b0SGarrett D'Amore
444297a3b0SGarrett D'Amore if (c == EOF)
454297a3b0SGarrett D'Amore return (WEOF);
464297a3b0SGarrett D'Amore /*
474297a3b0SGarrett D'Amore * We expect mbrtowc() to return 0 or 1, hence the check for n > 1
484297a3b0SGarrett D'Amore * which detects error return values as well as "impossible" byte
494297a3b0SGarrett D'Amore * counts.
504297a3b0SGarrett D'Amore */
514297a3b0SGarrett D'Amore cc = (char)c;
52*2d08521bSGarrett D'Amore if (mbrtowc_l(&wc, &cc, 1, &mbs, loc) > 1)
534297a3b0SGarrett D'Amore return (WEOF);
544297a3b0SGarrett D'Amore return (wc);
554297a3b0SGarrett D'Amore }
56*2d08521bSGarrett D'Amore
57*2d08521bSGarrett D'Amore wint_t
btowc(int c)58*2d08521bSGarrett D'Amore btowc(int c)
59*2d08521bSGarrett D'Amore {
60*2d08521bSGarrett D'Amore return (btowc_l(c, uselocale(NULL)));
61*2d08521bSGarrett D'Amore }
62