Commit | Line | Data |
---|---|---|
bf0d695d PMF |
1 | /* $OpenBSD: fileext.h,v 1.2 2005/06/17 20:40:32 espie Exp $ */ |
2 | /* $NetBSD: fileext.h,v 1.5 2003/07/18 21:46:41 nathanw Exp $ */ | |
3 | ||
4 | /*- | |
5 | * Copyright (c)2001 Citrus Project, | |
6 | * All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
28 | * | |
29 | * $Citrus$ | |
30 | */ | |
31 | ||
32 | /* | |
33 | * file extension | |
34 | */ | |
35 | struct __sfileext { | |
36 | struct __sbuf _ub; /* ungetc buffer */ | |
37 | struct wchar_io_data _wcio; /* wide char io status */ | |
38 | }; | |
39 | ||
40 | #define _EXT(fp) ((struct __sfileext *)((fp)->_ext._base)) | |
41 | #define _UB(fp) _EXT(fp)->_ub | |
42 | ||
43 | #define _FILEEXT_INIT(fp) \ | |
44 | do { \ | |
45 | _UB(fp)._base = NULL; \ | |
46 | _UB(fp)._size = 0; \ | |
47 | WCIO_INIT(fp); \ | |
48 | } while (0) | |
49 | ||
50 | #define _FILEEXT_SETUP(f, fext) \ | |
51 | do { \ | |
52 | (f)->_ext._base = (unsigned char *)(fext); \ | |
53 | _FILEEXT_INIT(f); \ | |
54 | } while (0) |