bsd/dev/random/YarrowCoreLib/src/comp.h

/*
 * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 *
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */

/*
	File:		comp.h

	Contains:	Glue between core prng code to the Zlib library.

	Written by:	Counterpane, Inc.

	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.

	Change History (most recent first):

		02/10/99	dpm		Created, based on Counterpane source.

*/
/* comp.h

   Header for the compression routines added to the Counterpane PRNG.
*/

#ifndef __YARROW_COMP_H__
#define __YARROW_COMP_H__

#include "smf.h"

/*
 * Kernel version does NULL compression....
 */
#define YARROW_KERNEL

#ifdef	YARROW_KERNEL
/*
 * Shrink this down to almost nothing to simplify kernel port;
 * with additional hacking on prng.c, this could go away entirely
 */
typedef char COMP_CTX;

/* and define some type3s normally picked up from zlib */
typedef unsigned char Bytef;
typedef unsigned uInt;

#else

#include "zlib.h"

/* Top level compression context */
typedef struct{
	MMPTR buf;
	uInt spaceused;
} COMP_CTX;
#endif	/* YARROW_KERNEL */

typedef enum comp_error_status {
	COMP_SUCCESS = 0,
	COMP_ERR_NULL_POINTER,
	COMP_ERR_LOW_MEMORY,
	COMP_ERR_LIB
} comp_error_status;

/* Exported functions from compress.c */
comp_error_status comp_init(COMP_CTX* ctx);
comp_error_status comp_add_data(COMP_CTX* ctx,Bytef* inp,uInt inplen);
comp_error_status comp_end(COMP_CTX* ctx);
comp_error_status comp_get_ratio(COMP_CTX* ctx,float* out);

#endif
Commit	Line	Data
	1	/*
	2	* Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28
	29	/*
	30	File: comp.h
	31
	32	Contains: Glue between core prng code to the Zlib library.
	33
	34	Written by: Counterpane, Inc.
	35
	36	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.
	37
	38	Change History (most recent first):
	39
	40	02/10/99 dpm Created, based on Counterpane source.
	41
	42	*/
	43	/* comp.h
	44
	45	Header for the compression routines added to the Counterpane PRNG.
	46	*/
	47
	48	#ifndef __YARROW_COMP_H__
	49	#define __YARROW_COMP_H__
	50
	51	#include "smf.h"
	52
	53	/*
	54	* Kernel version does NULL compression....
	55	*/
	56	#define YARROW_KERNEL
	57
	58	#ifdef YARROW_KERNEL
	59	/*
	60	* Shrink this down to almost nothing to simplify kernel port;
	61	* with additional hacking on prng.c, this could go away entirely
	62	*/
	63	typedef char COMP_CTX;
	64
	65	/* and define some type3s normally picked up from zlib */
	66	typedef unsigned char Bytef;
	67	typedef unsigned uInt;
	68
	69	#else
	70
	71	#include "zlib.h"
	72
	73	/* Top level compression context */
	74	typedef struct{
	75	MMPTR buf;
	76	uInt spaceused;
	77	} COMP_CTX;
	78	#endif /* YARROW_KERNEL */
	79
	80	typedef enum comp_error_status {
	81	COMP_SUCCESS = 0,
	82	COMP_ERR_NULL_POINTER,
	83	COMP_ERR_LOW_MEMORY,
	84	COMP_ERR_LIB
	85	} comp_error_status;
	86
	87	/* Exported functions from compress.c */
	88	comp_error_status comp_init(COMP_CTX* ctx);
	89	comp_error_status comp_add_data(COMP_CTX* ctx,Bytef* inp,uInt inplen);
	90	comp_error_status comp_end(COMP_CTX* ctx);
	91	comp_error_status comp_get_ratio(COMP_CTX* ctx,float* out);
	92
	93	#endif