1 /* 2 Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR> 3 This program and the accompanying materials are licensed and made available 4 under the terms and conditions of the BSD License that accompanies this 5 distribution. The full text of the license may be found at 6 http://opensource.org/licenses/bsd-license. 7 8 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 9 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 10 11 * Copyright (c)2001 Citrus Project, 12 * All rights reserved. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $Citrus$ 36 37 NetBSD: fwide.c,v 1.3 2005/06/12 05:21:27 lukem Exp 38 */ 39 #include <LibConfig.h> 40 #include <sys/EfiCdefs.h> 41 42 #include <assert.h> 43 #include <errno.h> 44 #include <stdio.h> 45 #include <wchar.h> 46 #include "reentrant.h" 47 #include "local.h" 48 49 int 50 fwide(FILE *fp, int mode) 51 { 52 struct wchar_io_data *wcio; 53 54 _DIAGASSERT(fp != NULL); 55 if(fp == NULL) { 56 errno = EINVAL; 57 return (0); 58 } 59 60 /* 61 * this implementation use only -1, 0, 1 62 * for mode value. 63 * (we don't need to do this, but 64 * this can make things simpler.) 65 */ 66 if (mode > 0) 67 mode = 1; 68 else if (mode < 0) 69 mode = -1; 70 71 FLOCKFILE(fp); 72 wcio = WCIO_GET(fp); 73 if (!wcio) 74 return 0; /* XXX */ 75 76 if (wcio->wcio_mode == 0 && mode != 0) 77 wcio->wcio_mode = mode; 78 else 79 mode = wcio->wcio_mode; 80 FUNLOCKFILE(fp); 81 82 return mode; 83 } 84
