Annotation of src/lib/libc/stdio/local.h, Revision 1.10
1.10 ! yamt 1: /* $NetBSD: local.h,v 1.9 1998/07/27 16:05:07 mycroft 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.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: *
1.7 perry 38: * @(#)local.h 8.3 (Berkeley) 7/3/94
1.1 cgd 39: */
40:
1.10 ! yamt 41: #include "wcio.h"
! 42: #include "fileext.h"
! 43:
1.1 cgd 44: /*
45: * Information local to this implementation of stdio,
46: * in particular, macros and private variables.
47: */
48:
1.7 perry 49: extern int __sflush __P((FILE *));
50: extern FILE *__sfp __P((void));
51: extern int __srefill __P((FILE *));
52: extern int __sread __P((void *, char *, int));
53: extern int __swrite __P((void *, char const *, int));
54: extern fpos_t __sseek __P((void *, fpos_t, int));
55: extern int __sclose __P((void *));
56: extern void __sinit __P((void));
57: extern void _cleanup __P((void));
58: extern void (*__cleanup) __P((void));
59: extern void __smakebuf __P((FILE *));
60: extern int __swhatbuf __P((FILE *, size_t *, int *));
61: extern int _fwalk __P((int (*)(FILE *)));
62: extern char *_mktemp __P((char *));
63: extern int __swsetup __P((FILE *));
64: extern int __sflags __P((const char *, int *));
1.1 cgd 65:
1.7 perry 66: extern int __sdidinit;
1.8 mycroft 67:
1.9 mycroft 68: extern int __gettemp __P((char *, int *, int));
1.1 cgd 69:
70: /*
71: * Return true iff the given FILE cannot be written now.
72: */
73: #define cantwrite(fp) \
74: ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
75: __swsetup(fp))
76:
77: /*
78: * Test whether the given stdio file has an active ungetc buffer;
79: * release such a buffer, without restoring ordinary unread data.
80: */
1.10 ! yamt 81: #define HASUB(fp) (_UB(fp)._base != NULL)
1.1 cgd 82: #define FREEUB(fp) { \
1.10 ! yamt 83: if (_UB(fp)._base != (fp)->_ubuf) \
! 84: free((char *)_UB(fp)._base); \
! 85: _UB(fp)._base = NULL; \
1.1 cgd 86: }
87:
88: /*
1.4 cgd 89: * test for an fgetln() buffer.
1.1 cgd 90: */
91: #define HASLB(fp) ((fp)->_lb._base != NULL)
92: #define FREELB(fp) { \
93: free((char *)(fp)->_lb._base); \
94: (fp)->_lb._base = NULL; \
95: }
1.10 ! yamt 96:
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