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 * $DragonFly: src/lib/libc/stdio/local.h,v 1.11 2007/11/25 01:28:22 swildner Exp $ 35 */ 36 37 #include <sys/types.h> /* for off_t */ 38 #include <pthread.h> 39 #include <string.h> 40 #include <wchar.h> 41 42 #include "wcio.h" 43 44 /* 45 * Information local to this implementation of stdio, 46 * in particular, macros and private variables. 47 */ 48 49 extern int _sread(FILE *, char *, int); 50 extern int _swrite(FILE *, const char *, int); 51 extern fpos_t _sseek(FILE *, fpos_t, int); 52 extern int _ftello(FILE *, fpos_t *); 53 extern int _fseeko(FILE *, off_t, int, int); 54 extern int __fflush(FILE *fp); 55 extern void __fcloseall(void); 56 extern wint_t __fgetwc_unlock(FILE *); 57 extern wint_t __fputwc_unlock(wchar_t, FILE *); 58 extern int __sflush(FILE *); 59 extern FILE *__sfp(void); 60 extern int __slbexpand(FILE *, size_t); 61 extern int __srefill(FILE *); 62 extern int __sread(void *, char *, int); 63 extern int __swrite(void *, const char *, int); 64 extern fpos_t __sseek(void *, fpos_t, int); 65 extern int __sclose(void *); 66 extern void __sinit(void); 67 extern void _cleanup(void); 68 extern void __smakebuf(FILE *); 69 extern int __swhatbuf(FILE *, size_t *, int *); 70 extern int _fwalk(int (*)(FILE *)); 71 extern int __svfscanf(FILE *, const char *, __va_list); 72 extern int __swsetup(FILE *); 73 extern int __sflags(const char *, int *); 74 extern int __ungetc(int, FILE *); 75 extern int __vfprintf(FILE *, const char *, __va_list); 76 extern int __vfscanf(FILE *, const char *, __va_list); 77 extern int __vfwprintf(FILE *, const wchar_t *, __va_list); 78 extern int __vfwscanf(FILE * __restrict, const wchar_t * __restrict, 79 __va_list); 80 extern size_t __fread(void * __restrict buf, size_t size, size_t count, 81 FILE * __restrict fp); 82 extern int __sdidinit; 83 84 85 /* 86 * Prepare the given FILE for writing, and return 0 iff it 87 * can be written now. Otherwise, return EOF and set errno. 88 */ 89 #define prepwrite(fp) \ 90 ((((fp)->pub._flags & __SWR) == 0 || \ 91 ((fp)->_bf._base == NULL && ((fp)->pub._flags & __SSTR) == 0)) && \ 92 __swsetup(fp)) 93 94 /* 95 * Test whether the given stdio file has an active ungetc buffer; 96 * release such a buffer, without restoring ordinary unread data. 97 */ 98 #define HASUB(fp) ((fp)->_ub._base != NULL) 99 #define FREEUB(fp) { \ 100 if ((fp)->_ub._base != (fp)->_ubuf) \ 101 free((char *)(fp)->_ub._base); \ 102 (fp)->_ub._base = NULL; \ 103 } 104 105 /* 106 * test for an fgetln() buffer. 107 */ 108 #define HASLB(fp) ((fp)->_lb._base != NULL) 109 #define FREELB(fp) { \ 110 free((char *)(fp)->_lb._base); \ 111 (fp)->_lb._base = NULL; \ 112 } 113 114 /* 115 * Set the orientation for a stream. If o > 0, the stream has wide- 116 * orientation. If o < 0, the stream has byte-orientation. 117 */ 118 #define ORIENT(fp, o) _SET_ORIENTATION(fp, o) 119