2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
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9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
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15 * documentation and/or other materials provided with the distribution.
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17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
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21 * may be used to endorse or promote products derived from this software
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36 * @(#)local.h 8.3 (Berkeley) 7/3/94
38 * $FreeBSD: src/lib/libc/stdio/local.h,v 1.1.1.2.6.1 2001/03/05 11:27:49 obrien Exp $
39 * $DragonFly: src/lib/libc/stdio/local.h,v 1.4 2003/11/12 20:21:25 eirikn Exp $
42 #ifndef _MACHINE_STDINT_H_
43 #include <machine/stdint.h> /* __size_t */
47 * Information local to this implementation of stdio,
48 * in particular, macros and private variables.
51 extern int __sflush (FILE *);
52 extern FILE *__sfp (void);
53 extern int __srefill (FILE *);
54 extern int __sread (void *, char *, int);
55 extern int __swrite (void *, char const *, int);
56 extern fpos_t __sseek (void *, fpos_t, int);
57 extern int __sclose (void *);
58 extern void __sinit (void);
59 extern void _cleanup (void);
60 extern void (*__cleanup) (void);
61 extern void __smakebuf (FILE *);
62 extern int __swhatbuf (FILE *, __size_t *, int *);
63 extern int _fwalk (int (*)(FILE *));
64 extern int __swsetup (FILE *);
65 extern int __sflags (const char *, int *);
67 extern int __sdidinit;
70 * Return true iff the given FILE cannot be written now.
72 #define cantwrite(fp) \
73 ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
77 * Test whether the given stdio file has an active ungetc buffer;
78 * release such a buffer, without restoring ordinary unread data.
80 #define HASUB(fp) ((fp)->_ub._base != NULL)
81 #define FREEUB(fp) { \
82 if ((fp)->_ub._base != (fp)->_ubuf) \
83 free((char *)(fp)->_ub._base); \
84 (fp)->_ub._base = NULL; \
88 * test for an fgetln() buffer.
90 #define HASLB(fp) ((fp)->_lb._base != NULL)
91 #define FREELB(fp) { \
92 free((char *)(fp)->_lb._base); \
93 (fp)->_lb._base = NULL; \