| 1 | /*-␊ |
| 2 | * Copyright (c) 1990, 1993␊ |
| 3 | *␉The Regents of the University of California. All rights reserved.␊ |
| 4 | *␊ |
| 5 | * This code is derived from software contributed to Berkeley by␊ |
| 6 | * Chris Torek.␊ |
| 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 | * 4. Neither the name of the University nor the names of its contributors␊ |
| 17 | * may be used to endorse or promote products derived from this software␊ |
| 18 | * without specific prior written permission.␊ |
| 19 | *␊ |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND␊ |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE␊ |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE␊ |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE␊ |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL␊ |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS␊ |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)␊ |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT␊ |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY␊ |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF␊ |
| 30 | * SUCH DAMAGE.␊ |
| 31 | *␊ |
| 32 | *␉@(#)local.h␉8.3 (Berkeley) 7/3/94␊ |
| 33 | * $FreeBSD: src/lib/libc/stdio/local.h,v 1.33 2008/05/05 16:03:52 jhb Exp $␊ |
| 34 | */␊ |
| 35 | ␊ |
| 36 | ␊ |
| 37 | #include <sys/cdefs.h>␊ |
| 38 | #include <sys/types.h>␉/* for off_t */␊ |
| 39 | #include <limits.h>␊ |
| 40 | #include <string.h>␊ |
| 41 | #include <sys/_types.h>␊ |
| 42 | ␊ |
| 43 | /*␊ |
| 44 | * Information local to this implementation of stdio,␊ |
| 45 | * in particular, macros and private variables.␊ |
| 46 | */␊ |
| 47 | ␊ |
| 48 | extern int␉_sread(FILE *, char *, int);␊ |
| 49 | extern int␉_swrite(FILE *, char const *, int);␊ |
| 50 | extern fpos_t␉_sseek(FILE *, fpos_t, int);␊ |
| 51 | extern int␉_ftello(FILE *, fpos_t *);␊ |
| 52 | extern int␉_fseeko(FILE *, off_t, int, int);␊ |
| 53 | extern int␉__fflush(FILE *fp);␊ |
| 54 | extern void␉__fcloseall(void);␊ |
| 55 | //extern wint_t␉__fgetwc(FILE *, locale_t);␊ |
| 56 | //extern wint_t␉__fputwc(wchar_t, FILE *, locale_t);␊ |
| 57 | extern int␉__sflush(FILE *);␊ |
| 58 | extern FILE␉*__sfp(int);␊ |
| 59 | extern void␉__sfprelease(FILE *);␉/* mark free and update count as needed */␊ |
| 60 | extern int␉__slbexpand(FILE *, size_t);␊ |
| 61 | extern int␉__srefill(FILE *);␊ |
| 62 | extern int␉__srefill0(FILE *);␊ |
| 63 | extern int␉__srefill1(FILE *);␊ |
| 64 | extern int␉__sread(void *, char *, int);␊ |
| 65 | extern int␉__swrite(void *, char const *, int);␊ |
| 66 | extern fpos_t␉__sseek(void *, fpos_t, int);␊ |
| 67 | extern int␉__sclose(void *);␊ |
| 68 | extern void␉__sinit(void);␊ |
| 69 | extern void␉_cleanup(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_l(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,␊ |
| 83 | //␉␉ __va_list);␊ |
| 84 | extern size_t␉__fread(void * __restrict buf, size_t size, size_t count,␊ |
| 85 | ␉␉FILE * __restrict fp);␊ |
| 86 | extern int␉__sdidinit;␊ |
| 87 | ␊ |
| 88 | #ifndef␉_MBSTATE_T␊ |
| 89 | #define␉_MBSTATE_T␊ |
| 90 | typedef␉__darwin_mbstate_t␉mbstate_t;␊ |
| 91 | #endif␊ |
| 92 | ␊ |
| 93 | #ifndef _PTHREAD_MUTEX_T␊ |
| 94 | #define _PTHREAD_MUTEX_T␊ |
| 95 | typedef __darwin_pthread_mutex_t␉pthread_mutex_t;␊ |
| 96 | #endif␊ |
| 97 | ␊ |
| 98 | #ifndef _PTHREAD_T␊ |
| 99 | #define _PTHREAD_T␊ |
| 100 | typedef __darwin_pthread_t␉␉pthread_t;␊ |
| 101 | #endif␊ |
| 102 | ␊ |
| 103 | /* hold a buncha junk that would grow the ABI */␊ |
| 104 | struct __sFILEX {␊ |
| 105 | ␉unsigned char␉*up;␉/* saved _p when _p is doing ungetc data */␊ |
| 106 | ␉pthread_mutex_t␉fl_mutex;␉/* used for MT-safety */␊ |
| 107 | ␉pthread_t␉fl_owner;␉/* current owner */␊ |
| 108 | ␉int␉␉fl_count;␉/* recursive lock count */␊ |
| 109 | ␉int␉␉orientation:2;␉/* orientation for fwide() */␊ |
| 110 | ␉int␉␉counted:1;␉/* stream counted against STREAM_MAX */␊ |
| 111 | ␉mbstate_t␉mbstate;␉/* multibyte conversion state */␊ |
| 112 | };␊ |
| 113 | ␊ |
| 114 | #define _up ␉␉_extra->up␊ |
| 115 | #define _fl_mutex␉_extra->fl_mutex␊ |
| 116 | #define _fl_owner␉_extra->fl_owner␊ |
| 117 | #define _fl_count␉_extra->fl_count␊ |
| 118 | #define _orientation␉_extra->orientation␊ |
| 119 | #define _mbstate␉_extra->mbstate␊ |
| 120 | #define _counted␉_extra->counted␊ |
| 121 | ␊ |
| 122 | #define␉INITEXTRA(fp) do { \␊ |
| 123 | (fp)->_extra->up = NULL; \␊ |
| 124 | (fp)->_extra->fl_mutex = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER; \␊ |
| 125 | (fp)->_extra->fl_owner = NULL; \␊ |
| 126 | (fp)->_extra->fl_count = 0; \␊ |
| 127 | (fp)->_extra->orientation = 0; \␊ |
| 128 | memset(&(fp)->_extra->mbstate, 0, sizeof(mbstate_t)); \␊ |
| 129 | (fp)->_extra->counted = 0; \␊ |
| 130 | } while(0);␊ |
| 131 | ␊ |
| 132 | /*␊ |
| 133 | * Prepare the given FILE for writing, and return 0 iff it␊ |
| 134 | * can be written now. Otherwise, return EOF and set errno.␊ |
| 135 | */␊ |
| 136 | #define␉prepwrite(fp) \␊ |
| 137 | ␉((((fp)->_flags & __SWR) == 0 || \␊ |
| 138 | ␉ ((fp)->_bf._base == NULL && ((fp)->_flags & __SSTR) == 0)) && \␊ |
| 139 | ␉ __swsetup(fp))␊ |
| 140 | ␊ |
| 141 | /*␊ |
| 142 | * Test whether the given stdio file has an active ungetc buffer;␊ |
| 143 | * release such a buffer, without restoring ordinary unread data.␊ |
| 144 | */␊ |
| 145 | #define␉HASUB(fp) ((fp)->_ub._base != NULL)␊ |
| 146 | #define␉FREEUB(fp) { \␊ |
| 147 | ␉if ((fp)->_ub._base != (fp)->_ubuf) \␊ |
| 148 | ␉␉free((char *)(fp)->_ub._base); \␊ |
| 149 | ␉(fp)->_ub._base = NULL; \␊ |
| 150 | }␊ |
| 151 | ␊ |
| 152 | /*␊ |
| 153 | * test for an fgetln() buffer.␊ |
| 154 | */␊ |
| 155 | #define␉HASLB(fp) ((fp)->_lb._base != NULL)␊ |
| 156 | #define␉FREELB(fp) { \␊ |
| 157 | ␉free((char *)(fp)->_lb._base); \␊ |
| 158 | ␉(fp)->_lb._base = NULL; \␊ |
| 159 | }␊ |
| 160 | ␊ |
| 161 | /*␊ |
| 162 | * Set the orientation for a stream. If o > 0, the stream has wide-␊ |
| 163 | * orientation. If o < 0, the stream has byte-orientation.␊ |
| 164 | */␊ |
| 165 | #define␉ORIENT(fp, o)␉do {␉␉␉␉\␊ |
| 166 | ␉if ((fp)->_orientation == 0)␉␉␉\␊ |
| 167 | ␉␉(fp)->_orientation = (o);␉␉\␊ |
| 168 | } while (0)␊ |
| 169 | |
