2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
10 * Copyright (c) 2011 The FreeBSD Foundation
11 * All rights reserved.
12 * Portions of this software were developed by David Chisnall
13 * under sponsorship from the FreeBSD Foundation.
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 * 3. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * @(#)local.h 8.3 (Berkeley) 7/3/94
43 #ifndef _STDIO_LOCAL_H
44 #define _STDIO_LOCAL_H
46 #include <sys/types.h> /* for off_t */
53 * Information local to this implementation of stdio,
54 * in particular, macros and private variables.
57 extern int _sread(FILE *, char *, int);
58 extern int _swrite(FILE *, char const *, int);
59 extern fpos_t _sseek(FILE *, fpos_t, int);
60 extern int _ftello(FILE *, fpos_t *);
61 extern int _fseeko(FILE *, off_t, int, int);
62 extern int __fflush(FILE *fp);
63 extern void __fcloseall(void);
64 extern wint_t __fgetwc_mbs(FILE *, mbstate_t *, int *, locale_t);
65 extern wint_t __fputwc(wchar_t, FILE *, locale_t);
66 extern int __sflush(FILE *);
67 extern FILE *__sfp(void);
68 extern int __slbexpand(FILE *, size_t);
69 extern int __srefill(FILE *);
70 extern int __sread(void *, char *, int);
71 extern int __swrite(void *, char const *, int);
72 extern fpos_t __sseek(void *, fpos_t, int);
73 extern int __sclose(void *);
74 extern void __sinit(void);
75 extern void _cleanup(void);
76 extern void __smakebuf(FILE *);
77 extern int __swhatbuf(FILE *, size_t *, int *);
78 extern int _fwalk(int (*)(FILE *));
79 extern int __svfscanf(FILE *, locale_t, const char *, __va_list);
80 extern int __swsetup(FILE *);
81 extern int __sflags(const char *, int *);
82 extern int __ungetc(int, FILE *);
83 extern wint_t __ungetwc(wint_t, FILE *, locale_t);
84 extern int __vfprintf(FILE *, locale_t, const char *, __va_list);
85 extern int __vfscanf(FILE *, const char *, __va_list);
86 extern int __vfwprintf(FILE *, locale_t, const wchar_t *, __va_list);
87 extern int __vfwscanf(FILE * __restrict, locale_t, const wchar_t * __restrict,
89 extern size_t __fread(void * __restrict buf, size_t size, size_t count,
90 FILE * __restrict fp);
91 extern int __sdidinit;
94 __fgetwc(FILE *fp, locale_t locale)
98 return (__fgetwc_mbs(fp, &fp->_mbstate, &nread, locale));
102 * Prepare the given FILE for writing, and return 0 iff it
103 * can be written now. Otherwise, return EOF and set errno.
105 #define prepwrite(fp) \
106 ((((fp)->_flags & __SWR) == 0 || \
107 ((fp)->_bf._base == NULL && ((fp)->_flags & __SSTR) == 0)) && \
111 * Test whether the given stdio file has an active ungetc buffer;
112 * release such a buffer, without restoring ordinary unread data.
114 #define HASUB(fp) ((fp)->_ub._base != NULL)
115 #define FREEUB(fp) { \
116 if ((fp)->_ub._base != (fp)->_ubuf) \
117 free((char *)(fp)->_ub._base); \
118 (fp)->_ub._base = NULL; \
122 * test for an fgetln() buffer.
124 #define HASLB(fp) ((fp)->_lb._base != NULL)
125 #define FREELB(fp) { \
126 free((char *)(fp)->_lb._base); \
127 (fp)->_lb._base = NULL; \
131 * Structure initializations for 'fake' FILE objects.
133 #define FAKE_FILE { \
135 ._fl_mutex = PTHREAD_MUTEX_INITIALIZER, \
139 * Set the orientation for a stream. If o > 0, the stream has wide-
140 * orientation. If o < 0, the stream has byte-orientation.
142 #define ORIENT(fp, o) do { \
143 if ((fp)->_orientation == 0) \
144 (fp)->_orientation = (o); \
147 void __stdio_cancel_cleanup(void *);
148 #define FLOCKFILE_CANCELSAFE(fp) \
150 struct _pthread_cleanup_info __cleanup_info__; \
151 if (__isthreaded) { \
153 ___pthread_cleanup_push_imp( \
154 __stdio_cancel_cleanup, (fp), \
155 &__cleanup_info__); \
157 ___pthread_cleanup_push_imp( \
158 __stdio_cancel_cleanup, NULL, \
159 &__cleanup_info__); \
162 #define FUNLOCKFILE_CANCELSAFE() \
165 ___pthread_cleanup_pop_imp(1); \
168 #endif /* _STDIO_LOCAL_H */