Annotation of src/lib/libc/stdio/local.h, Revision 1.30.2.2
1.30.2.2! yamt 1: /* $NetBSD: local.h,v 1.30.2.1 2012/04/17 00:05:24 yamt Exp $ */
1.5 jtc 2:
1.1 cgd 3: /*-
1.5 jtc 4: * Copyright (c) 1990, 1993
5: * The Regents of the University of California. All rights reserved.
1.1 cgd 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.
1.17 agc 18: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 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: *
1.7 perry 34: * @(#)local.h 8.3 (Berkeley) 7/3/94
1.1 cgd 35: */
36:
1.10 yamt 37: #include "wcio.h"
38: #include "fileext.h"
39:
1.29 tron 40: #include <limits.h>
1.30 joerg 41: #include <stdarg.h>
1.29 tron 42: #include <stdbool.h>
43:
1.1 cgd 44: /*
45: * Information local to this implementation of stdio,
46: * in particular, macros and private variables.
47: */
48:
1.30.2.1 yamt 49: extern int __sflush(FILE *);
50: extern FILE *__sfp(void);
51: extern void __sfpinit(FILE *);
52: extern int __srefill(FILE *);
53: extern ssize_t __sread(void *, void *, size_t);
54: extern ssize_t __swrite(void *, const void *, size_t);
55: extern off_t __sseek(void *, off_t, int);
56: extern int __sclose(void *);
57: extern void __sinit(void);
58: extern void _cleanup(void);
59: extern void (*__cleanup)(void);
60: extern void __smakebuf(FILE *);
61: extern int __swhatbuf(FILE *, size_t *, int *);
62: extern int _fwalk(int (*)(FILE *));
63: extern char *_mktemp(char *);
64: extern int __swsetup(FILE *);
65: extern int __sflags(const char *, int *);
66: extern int __svfscanf(FILE * __restrict, const char * __restrict,
67: va_list) __scanflike(2, 0);
1.30.2.2! yamt 68: extern int __svfscanf_l(FILE * __restrict, locale_t,
! 69: const char * __restrict, va_list) __scanflike(3, 0);
! 70: extern int __svfscanf_unlocked_l(FILE * __restrict, locale_t,
! 71: const char * __restrict, va_list) __scanflike(3, 0);
! 72: extern int __vfprintf_unlocked_l(FILE * __restrict, locale_t,
! 73: const char * __restrict, va_list) __printflike(3, 0);
1.19 kleink 74:
1.1 cgd 75:
1.7 perry 76: extern int __sdidinit;
1.8 mycroft 77:
1.30.2.1 yamt 78: extern int __gettemp(char *, int *, int);
1.1 cgd 79:
1.30.2.1 yamt 80: extern wint_t __fgetwc_unlock(FILE *);
81: extern wint_t __fputwc_unlock(wchar_t, FILE *);
1.18 drochner 82:
1.23 roy 83: extern ssize_t __getdelim(char **__restrict, size_t *__restrict, int,
84: FILE *__restrict);
1.30.2.1 yamt 85: extern char *__fgetstr(FILE * __restrict, size_t * __restrict, int);
1.30.2.2! yamt 86: extern int __vfwprintf_unlocked_l(FILE *, locale_t, const wchar_t *, va_list);
! 87: extern int __vfwscanf_unlocked_l(FILE * __restrict, locale_t,
1.30.2.1 yamt 88: const wchar_t * __restrict, va_list);
1.18 drochner 89:
1.1 cgd 90: /*
91: * Return true iff the given FILE cannot be written now.
92: */
93: #define cantwrite(fp) \
94: ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
95: __swsetup(fp))
96:
97: /*
98: * Test whether the given stdio file has an active ungetc buffer;
99: * release such a buffer, without restoring ordinary unread data.
100: */
1.10 yamt 101: #define HASUB(fp) (_UB(fp)._base != NULL)
1.1 cgd 102: #define FREEUB(fp) { \
1.10 yamt 103: if (_UB(fp)._base != (fp)->_ubuf) \
104: free((char *)_UB(fp)._base); \
105: _UB(fp)._base = NULL; \
1.1 cgd 106: }
107:
108: /*
1.4 cgd 109: * test for an fgetln() buffer.
1.1 cgd 110: */
111: #define FREELB(fp) { \
1.24 joerg 112: free(_EXT(fp)->_fgetstr_buf); \
113: _EXT(fp)->_fgetstr_buf = NULL; \
114: _EXT(fp)->_fgetstr_len = 0; \
1.1 cgd 115: }
1.10 yamt 116:
1.30.2.1 yamt 117: extern void __flockfile_internal(FILE *, int);
118: extern void __funlockfile_internal(FILE *, int);
1.26 christos 119:
1.30.2.2! yamt 120: extern char *__gets(char *);
! 121:
1.26 christos 122: /*
123: * Detect if the current file position fits in a long int.
124: */
1.29 tron 125:
126: static __inline bool
1.30.2.1 yamt 127: __long_overflow(off_t pos)
1.29 tron 128: {
1.30.2.1 yamt 129: return (pos < LONG_MIN) || (pos > LONG_MAX);
1.29 tron 130: }
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