Update version to 0.16
[ust.git] / snprintf / local.h
1 /* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */
2
3 /*-
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Chris Torek.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 /*
36 * Information local to this implementation of stdio,
37 * in particular, macros and private variables.
38 */
39
40 #include <wchar.h>
41 #include "various.h"
42 #include "wcio.h"
43 #include "fileext.h"
44
45 int __sflush(LFILE *);
46 LFILE *__sfp(void);
47 int __srefill(LFILE *);
48 int __sread(void *, char *, int);
49 int __swrite(void *, const char *, int);
50 fpos_t __sseek(void *, fpos_t, int);
51 int __sclose(void *);
52 void __sinit(void);
53 void _cleanup(void);
54 void __smakebuf(LFILE *);
55 int __swhatbuf(LFILE *, size_t *, int *);
56 int _fwalk(int (*)(LFILE *));
57 int __swsetup(LFILE *);
58 int __sflags(const char *, int *);
59 wint_t __fgetwc_unlock(LFILE *);
60
61 extern void __atexit_register_cleanup(void (*)(void));
62 extern int __sdidinit;
63
64 /*
65 * Return true if the given LFILE cannot be written now.
66 */
67 #define cantwrite(fp) \
68 ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
69 __swsetup(fp))
70
71 /*
72 * Test whether the given stdio file has an active ungetc buffer;
73 * release such a buffer, without restoring ordinary unread data.
74 */
75 #define HASUB(fp) (_UB(fp)._base != NULL)
76 #define FREEUB(fp) { \
77 if (_UB(fp)._base != (fp)->_ubuf) \
78 free(_UB(fp)._base); \
79 _UB(fp)._base = NULL; \
80 }
81
82 /*
83 * test for an fgetln() buffer.
84 */
85 #define HASLB(fp) ((fp)->_lb._base != NULL)
86 #define FREELB(fp) { \
87 free((char *)(fp)->_lb._base); \
88 (fp)->_lb._base = NULL; \
89 }
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