1 /* $NetBSD: local.h,v 1.18 2004/05/10 16:47:11 drochner 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 int __srefill __P((FILE *)); 48 extern int __sread __P((void *, char *, int)); 49 extern int __swrite __P((void *, char const *, int)); 50 extern fpos_t __sseek __P((void *, fpos_t, int)); 51 extern int __sclose __P((void *)); 52 extern void __sinit __P((void)); 53 extern void _cleanup __P((void)); 54 extern void (*__cleanup) __P((void)); 55 extern void __smakebuf __P((FILE *)); 56 extern int __swhatbuf __P((FILE *, size_t *, int *)); 57 extern int _fwalk __P((int (*)(FILE *))); 58 extern char *_mktemp __P((char *)); 59 extern int __swsetup __P((FILE *)); 60 extern int __sflags __P((const char *, int *)); 61 extern int __svfscanf __P((FILE * __restrict, const char * __restrict, 62 _BSD_VA_LIST_)) 63 __attribute__((__format__(__scanf__, 2, 0))); 64 extern int __svfscanf_unlocked __P((FILE * __restrict, const char * __restrict, 65 _BSD_VA_LIST_)) 66 __attribute__((__format__(__scanf__, 2, 0))); 67 68 extern int __sdidinit; 69 70 extern int __gettemp __P((char *, int *, int)); 71 72 extern wint_t __fgetwc_unlock __P((FILE *)); 73 extern wint_t __fputwc_unlock __P((wchar_t, FILE *)); 74 75 extern char *__fgetstr __P((FILE * __restrict, size_t * __restrict, int)); 76 77 /* 78 * Return true iff the given FILE cannot be written now. 79 */ 80 #define cantwrite(fp) \ 81 ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \ 82 __swsetup(fp)) 83 84 /* 85 * Test whether the given stdio file has an active ungetc buffer; 86 * release such a buffer, without restoring ordinary unread data. 87 */ 88 #define HASUB(fp) (_UB(fp)._base != NULL) 89 #define FREEUB(fp) { \ 90 if (_UB(fp)._base != (fp)->_ubuf) \ 91 free((char *)_UB(fp)._base); \ 92 _UB(fp)._base = NULL; \ 93 } 94 95 /* 96 * test for an fgetln() buffer. 97 */ 98 #define HASLB(fp) ((fp)->_lb._base != NULL) 99 #define FREELB(fp) { \ 100 free((char *)(fp)->_lb._base); \ 101 (fp)->_lb._base = NULL; \ 102 } 103 104 extern void __flockfile_internal __P((FILE *, int)); 105 extern void __funlockfile_internal __P((FILE *, int)); 106