1c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes/* $OpenBSD: fwide.c,v 1.4 2009/11/09 00:18:27 kurt Exp $ */ 2c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes/* $NetBSD: fwide.c,v 1.2 2003/01/18 11:29:54 thorpej Exp $ */ 3c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 4c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes/*- 5c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * Copyright (c)2001 Citrus Project, 6c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * All rights reserved. 7c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * 8c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * Redistribution and use in source and binary forms, with or without 9c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * modification, are permitted provided that the following conditions 10c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * are met: 11c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * 1. Redistributions of source code must retain the above copyright 12c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * notice, this list of conditions and the following disclaimer. 13c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 14c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * notice, this list of conditions and the following disclaimer in the 15c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * documentation and/or other materials provided with the distribution. 16c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * 17c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * SUCH DAMAGE. 28c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * 29c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * $Citrus$ 30c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes */ 31c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 32c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes#include <stdio.h> 33c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes#include <wchar.h> 34c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes#include "local.h" 35c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 36c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughesint 37c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughesfwide(FILE *fp, int mode) 38c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes{ 39c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes struct wchar_io_data *wcio; 40c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 41c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes /* 42c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * this implementation use only -1, 0, 1 43c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * for mode value. 44c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * (we don't need to do this, but 45c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes * this can make things simpler.) 46c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes */ 47c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes if (mode > 0) 48c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes mode = 1; 49c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes else if (mode < 0) 50c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes mode = -1; 51c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 52c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes FLOCKFILE(fp); 53c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes wcio = WCIO_GET(fp); 54c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes if (!wcio) 55c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes return 0; /* XXX */ 56c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 57c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes if (wcio->wcio_mode == 0 && mode != 0) 58c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes wcio->wcio_mode = mode; 59c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes else 60c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes mode = wcio->wcio_mode; 61c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes FUNLOCKFILE(fp); 62c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes 63c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes return mode; 64c932225e1061dc57fc4bf2d6203d9737f4f989faElliott Hughes} 65