89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
|
/*-
|
||
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This code is derived from software contributed to Berkeley by
|
||
|
|
* Chris Torek.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. All advertising materials mentioning features or use of this software
|
||
|
|
* must display the following acknowledgement:
|
||
|
|
* This product includes software developed by the University of
|
||
|
|
* California, Berkeley and its contributors.
|
||
|
|
* 4. Neither the name of the University nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* from: @(#)local.h 5.3 (Berkeley) 5/6/93
|
||
|
|
* $Id: local.h,v 1.1 1994/02/07 22:06:17 proven Exp $
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Information local to this implementation of stdio,
|
||
|
|
* in particular, macros and private variables.
|
||
|
|
*/
|
||
|
|
|
||
|
|
FILE *__sfp __P((void));
|
||
|
|
int __sflush __P((FILE *));
|
||
|
|
int __srefill __P((FILE *));
|
||
|
|
int __swrite __P((FILE *, const char *, int));
|
||
|
|
int __sread __P((FILE *, char *, int));
|
||
|
|
fpos_t __sseek __P((FILE *, fpos_t, int));
|
||
|
|
int __sclose __P((FILE *));
|
||
|
|
void __sinit __P((void));
|
||
|
|
void _cleanup __P((void));
|
||
|
|
void (*__cleanup) __P((void));
|
||
|
|
void __smakebuf __P((FILE *));
|
||
|
|
int __swhatbuf __P((FILE *, size_t *, int *));
|
||
|
|
int __swalk_sflush __P(());
|
||
|
|
int __swsetup __P((FILE *));
|
||
|
|
int __sflags __P((const char *, int *));
|
||
|
|
|
||
|
|
extern int __sdidinit;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return true iff the given FILE cannot be written now.
|
||
|
|
*/
|
||
|
|
#define cantwrite(fp) \
|
||
|
|
((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
|
||
|
|
__swsetup(fp))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Test whether the given stdio file has an active ungetc buffer;
|
||
|
|
* release such a buffer, without restoring ordinary unread data.
|
||
|
|
*/
|
||
|
|
#define HASUB(fp) ((fp)->_ub._base != NULL)
|
||
|
|
#define FREEUB(fp) { \
|
||
|
|
if ((fp)->_ub._base != (fp)->_ubuf) \
|
||
|
|
free((char *)(fp)->_ub._base); \
|
||
|
|
(fp)->_ub._base = NULL; \
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* test for an fgetline() buffer.
|
||
|
|
*/
|
||
|
|
#define HASLB(fp) ((fp)->_lb._base != NULL)
|
||
|
|
#define FREELB(fp) { \
|
||
|
|
free((char *)(fp)->_lb._base); \
|
||
|
|
(fp)->_lb._base = NULL; \
|
||
|
|
}
|