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