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53e1e5c6 | 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 | |
2aa62f2b | 10 | \r |
2aa62f2b | 11 | * Copyright (c) 2002 Tim J. Robbins.\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 | * Original version ID:\r | |
36 | * FreeBSD: src/lib/libc/stdio/fgetws.c,v 1.4 2002/09/20 13:25:40 tjr Exp\r | |
53e1e5c6 | 37 | \r |
38 | $NetBSD: fgetws.c,v 1.2 2006/07/03 17:06:36 tnozaki Exp $\r | |
39 | */\r | |
2aa62f2b | 40 | #include <LibConfig.h>\r |
41 | #include <sys/EfiCdefs.h>\r | |
2aa62f2b | 42 | \r |
43 | #include <assert.h>\r | |
44 | #include <errno.h>\r | |
45 | #include <stdio.h>\r | |
46 | #include <wchar.h>\r | |
47 | #include "reentrant.h"\r | |
48 | #include "local.h"\r | |
49 | \r | |
50 | wchar_t *\r | |
51 | fgetws(\r | |
52 | wchar_t * __restrict ws,\r | |
53 | int n,\r | |
54 | FILE * __restrict fp\r | |
55 | )\r | |
56 | {\r | |
57 | wchar_t *wsp;\r | |
58 | wint_t wc;\r | |
59 | \r | |
60 | _DIAGASSERT(fp != NULL);\r | |
61 | _DIAGASSERT(ws != NULL);\r | |
53e1e5c6 | 62 | if(fp == NULL) {\r |
63 | errno = EINVAL;\r | |
64 | return (NULL);\r | |
65 | }\r | |
2aa62f2b | 66 | \r |
67 | FLOCKFILE(fp);\r | |
68 | _SET_ORIENTATION(fp, 1);\r | |
69 | \r | |
70 | if (n <= 0) {\r | |
71 | errno = EINVAL;\r | |
72 | goto error;\r | |
73 | }\r | |
74 | \r | |
75 | wsp = ws;\r | |
76 | while (n-- > 1) {\r | |
77 | wc = __fgetwc_unlock(fp);\r | |
78 | if (__sferror(fp) != 0)\r | |
79 | goto error;\r | |
80 | if (__sfeof(fp) != 0) {\r | |
81 | if (wsp == ws) {\r | |
82 | /* EOF/error, no characters read yet. */\r | |
83 | goto error;\r | |
84 | }\r | |
85 | break;\r | |
86 | }\r | |
87 | *wsp++ = (wchar_t)wc;\r | |
88 | if (wc == L'\n') {\r | |
89 | break;\r | |
90 | }\r | |
91 | }\r | |
92 | \r | |
93 | *wsp++ = L'\0';\r | |
94 | FUNLOCKFILE(fp);\r | |
95 | \r | |
96 | return (ws);\r | |
97 | \r | |
98 | error:\r | |
99 | FUNLOCKFILE(fp);\r | |
100 | return (NULL);\r | |
101 | }\r |