1 /* $NetBSD: local.h,v 1.25 2010/09/06 14:52:55 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 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. 18 * 3. Neither the name of the University nor the names of its contributors 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 * 34 * @(#)local.h 8.3 (Berkeley) 7/3/94 35 */ 36 37 #include "wcio.h" 38 #include "fileext.h" 39 40 /* 41 * Information local to this implementation of stdio, 42 * in particular, macros and private variables. 43 */ 44 45 extern int __sflush __P((FILE *)); 46 extern FILE *__sfp __P((void)); 47 extern void __sfpinit __P((FILE *)); 48 extern int __srefill __P((FILE *)); 49 extern int __sread __P((void *, char *, int)); 50 extern int __swrite __P((void *, char const *, int)); 51 extern fpos_t __sseek __P((void *, fpos_t, int)); 52 extern int __sclose __P((void *)); 53 extern void __sinit __P((void)); 54 extern void _cleanup __P((void)); 55 extern void (*__cleanup) __P((void)); 56 extern void __smakebuf __P((FILE *)); 57 extern int __swhatbuf __P((FILE *, size_t *, int *)); 58 extern int _fwalk __P((int (*)(FILE *))); 59 extern char *_mktemp __P((char *)); 60 extern int __swsetup __P((FILE *)); 61 extern int __sflags __P((const char *, int *)); 62 extern int __svfscanf __P((FILE * __restrict, const char * __restrict, 63 _BSD_VA_LIST_)) 64 __attribute__((__format__(__scanf__, 2, 0))); 65 extern int __svfscanf_unlocked __P((FILE * __restrict, const char * __restrict, 66 _BSD_VA_LIST_)) 67 __attribute__((__format__(__scanf__, 2, 0))); 68 extern int __vfprintf_unlocked __P((FILE * __restrict, const char * __restrict, 69 _BSD_VA_LIST_)); 70 71 72 extern int __sdidinit; 73 74 extern int __gettemp __P((char *, int *, int)); 75 76 extern wint_t __fgetwc_unlock __P((FILE *)); 77 extern wint_t __fputwc_unlock __P((wchar_t, FILE *)); 78 79 extern ssize_t __getdelim(char **__restrict, size_t *__restrict, int, 80 FILE *__restrict); 81 extern char *__fgetstr __P((FILE * __restrict, size_t * __restrict, int)); 82 extern int __vfwprintf_unlocked __P((FILE *, const wchar_t *, 83 _BSD_VA_LIST_)); 84 extern int __vfwscanf_unlocked __P((FILE * __restrict, 85 const wchar_t * __restrict, _BSD_VA_LIST_)); 86 87 /* 88 * Return true iff the given FILE cannot be written now. 89 */ 90 #define cantwrite(fp) \ 91 ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \ 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) (_UB(fp)._base != NULL) 99 #define FREEUB(fp) { \ 100 if (_UB(fp)._base != (fp)->_ubuf) \ 101 free((char *)_UB(fp)._base); \ 102 _UB(fp)._base = NULL; \ 103 } 104 105 /* 106 * test for an fgetln() buffer. 107 */ 108 #define FREELB(fp) { \ 109 free(_EXT(fp)->_fgetstr_buf); \ 110 _EXT(fp)->_fgetstr_buf = NULL; \ 111 _EXT(fp)->_fgetstr_len = 0; \ 112 } 113 114 extern void __flockfile_internal __P((FILE *, int)); 115 extern void __funlockfile_internal __P((FILE *, int)); 116