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