GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/stdio/fgetws.c Lines: 0 17 0.0 %
Date: 2017-11-13 Branches: 0 32 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: fgetws.c,v 1.8 2016/01/04 16:14:19 schwarze Exp $	*/
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/* $NetBSD: fgetws.c,v 1.1 2003/03/07 07:11:37 tshiozak Exp $ */
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/*-
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 * Copyright (c) 2002 Tim J. Robbins.
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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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 * Original version ID:
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 * FreeBSD: src/lib/libc/stdio/fgetws.c,v 1.4 2002/09/20 13:25:40 tjr Exp
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 *
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 */
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#include <errno.h>
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#include <stdio.h>
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#include <wchar.h>
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#include "local.h"
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wchar_t *
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fgetws(wchar_t * __restrict ws, int n, FILE * __restrict fp)
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{
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	wchar_t *wsp;
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	wint_t wc;
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	FLOCKFILE(fp);
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	_SET_ORIENTATION(fp, 1);
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	if (n <= 0) {
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		errno = EINVAL;
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		goto error;
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	}
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	wsp = ws;
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	while (n-- > 1) {
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		if ((wc = __fgetwc_unlock(fp)) == WEOF &&
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		    ferror(fp) && errno == EILSEQ)
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			goto error;
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		if (wc == WEOF) {
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			if (wsp == ws) {
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				/* EOF/error, no characters read yet. */
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				goto error;
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			}
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			break;
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		}
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		*wsp++ = (wchar_t)wc;
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		if (wc == L'\n') {
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			break;
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		}
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	}
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	*wsp++ = L'\0';
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	FUNLOCKFILE(fp);
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	return (ws);
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error:
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	FUNLOCKFILE(fp);
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	return (NULL);
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}
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DEF_STRONG(fgetws);