mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-26 21:13:11 +01:00
120 lines
4.7 KiB
C
120 lines
4.7 KiB
C
/* $NetBSD: buf.h,v 1.17 2012/04/24 20:26:58 sjg Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Adam de Boor.
|
|
*
|
|
* 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. 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: @(#)buf.h 8.1 (Berkeley) 6/6/93
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1988, 1989 by Adam de Boor
|
|
* Copyright (c) 1989 by Berkeley Softworks
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Adam de Boor.
|
|
*
|
|
* 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: @(#)buf.h 8.1 (Berkeley) 6/6/93
|
|
*/
|
|
|
|
/*-
|
|
* buf.h --
|
|
* Header for users of the buf library.
|
|
*/
|
|
|
|
#ifndef _BUF_H
|
|
#define _BUF_H
|
|
|
|
typedef char Byte;
|
|
|
|
typedef struct Buffer {
|
|
int size; /* Current size of the buffer */
|
|
int count; /* Number of bytes in buffer */
|
|
Byte *buffer; /* The buffer itself (zero terminated) */
|
|
} Buffer;
|
|
|
|
/* If we aren't on netbsd, __predict_false() might not be defined. */
|
|
#ifndef __predict_false
|
|
#define __predict_false(x) (x)
|
|
#endif
|
|
|
|
/* Buf_AddByte adds a single byte to a buffer. */
|
|
#define Buf_AddByte(bp, byte) do { \
|
|
int _count = ++(bp)->count; \
|
|
char *_ptr; \
|
|
if (__predict_false(_count >= (bp)->size)) \
|
|
Buf_Expand_1(bp); \
|
|
_ptr = (bp)->buffer + _count; \
|
|
_ptr[-1] = (byte); \
|
|
_ptr[0] = 0; \
|
|
} while (0)
|
|
|
|
#define BUF_ERROR 256
|
|
|
|
#define Buf_Size(bp) ((bp)->count)
|
|
|
|
void Buf_Expand_1(Buffer *);
|
|
void Buf_AddBytes(Buffer *, int, const Byte *);
|
|
Byte *Buf_GetAll(Buffer *, int *);
|
|
void Buf_Empty(Buffer *);
|
|
void Buf_Init(Buffer *, int);
|
|
Byte *Buf_Destroy(Buffer *, Boolean);
|
|
Byte *Buf_DestroyCompact(Buffer *);
|
|
|
|
#endif /* _BUF_H */
|