X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e5568f75972dfc723778653c11cb6b4dc825716a..fe8ab488e9161c46dd9885d58fc52996dc0249ff:/bsd/dev/random/YarrowCoreLib/src/comp.c

diff --git a/bsd/dev/random/YarrowCoreLib/src/comp.c b/bsd/dev/random/YarrowCoreLib/src/comp.c
deleted file mode 100644
index 91c1844a0..000000000
--- a/bsd/dev/random/YarrowCoreLib/src/comp.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-
-/*
-	File:		comp.c
-
-	Contains:	NULL compression. Kernel version of Yarrow assumes
-				incoming seed data is truly random.
-*/
-#include "dev/random/YarrowCoreLib/include/WindowsTypesForMac.h"
-#include "comp.h"
-
-#ifdef	YARROW_KERNEL
-
-/* null compression */
-comp_error_status comp_init(COMP_CTX* ctx)
-{
-	return COMP_SUCCESS;
-}
-
-
-comp_error_status comp_add_data(COMP_CTX* ctx,Bytef* inp,uInt inplen)
-{
-	return COMP_SUCCESS;
-}
-
-comp_error_status comp_get_ratio(COMP_CTX* ctx,float* out)
-{
-	*out = 1.0;
-	return COMP_SUCCESS;
-}
-
-comp_error_status comp_end(COMP_CTX* ctx)
-{
-	return COMP_SUCCESS;
-}
-
-#else
-
-/* original Yarrow compression, must be linked with zlib */
-
-#if		defined(macintosh) || defined(__APPLE__)
-#include "WindowsTypesForMac.h"
-#include "yarrowUtils.h"
-#include <string.h>
-#include <stdlib.h>
-#else
-#include <windows.h>
-#endif
-#include <math.h>
-#include "comp.h"
-
-/* Check that the pointer is not NULL */
-#define PCHECK(ptr)  if(ptr==NULL) {return COMP_ERR_NULL_POINTER;}
-#define MMPCHECK(mmptr) if(mmptr==MM_NULL) {return COMP_ERR_NULL_POINTER;}
-/* Check that the important parts of the context are ok */
-#define CTXCHECK(ctx) \
-PCHECK(ctx)				\
-MMPCHECK(ctx->buf)
-
-/* Might want to vary these by context */
-#define BUFSIZE  16384 /* 16K */
-#define OUTBUFSIZE 16800 /* = inbufsize*1.01 + 12 (See zlib docs) */
-#define SHIFTSIZE 4096 /* BUFSIZE/4 */
-
-#define _MIN(a,b) (((a)<(b))?(a):(b))
-
-
-/* Initialize these routines */
-comp_error_status comp_init(COMP_CTX* ctx)
-{
-	ctx->buf = mmMalloc(BUFSIZE);
-	if(ctx->buf == MM_NULL) {goto cleanup_comp_init;}
-	ctx->spaceused = 0;
-
-	return COMP_SUCCESS;
-
-cleanup_comp_init:
-	mmFree(ctx->buf);
-
-	return COMP_ERR_LOW_MEMORY;
-}
-
-
-comp_error_status comp_add_data(COMP_CTX* ctx,Bytef* inp,uInt inplen)
-{
-	uInt shifts;
-	uInt blocksize;
-	BYTE* buf;
-
-	CTXCHECK(ctx);
-	PCHECK(inp);
-
-	buf = (BYTE*)mmGetPtr(ctx->buf);
-
-	if(inplen+SHIFTSIZE>BUFSIZE)
-	{
-		blocksize = _MIN(inplen,BUFSIZE);
-		memmove(buf,inp,blocksize);
-		ctx->spaceused = blocksize;
-	}
-	else
-	{
-		if(inplen+ctx->spaceused>BUFSIZE) 
-		{
-			shifts = (uInt)ceil((inplen+ctx->spaceused-BUFSIZE)/(float)SHIFTSIZE);
-			blocksize = _MIN(shifts*SHIFTSIZE,ctx->spaceused);
-			memmove(buf,buf+blocksize,BUFSIZE-blocksize);
-			ctx->spaceused = ctx->spaceused - blocksize;
-		}
-		memmove(buf+ctx->spaceused,inp,inplen);
-		ctx->spaceused += inplen;
-	}
-
-	return COMP_SUCCESS;
-}
-
-comp_error_status comp_get_ratio(COMP_CTX* ctx,float* out)
-{
-	Bytef *inbuf,*outbuf;
-	uLong insize,outsize;
-	int resp;
-
-	*out = 0;
-
-	CTXCHECK(ctx);
-	PCHECK(out);
-
-	if(ctx->spaceused == 0) {return COMP_SUCCESS;}
-
-	inbuf = (Bytef*)mmGetPtr(ctx->buf);
-	outbuf = (Bytef*)malloc(OUTBUFSIZE);
-	if(outbuf==NULL) {return COMP_ERR_LOW_MEMORY;}
-
-	insize = ctx->spaceused;
-	outsize = OUTBUFSIZE;
-
-	resp = compress(outbuf,&outsize,inbuf,insize);
-	if(resp==Z_MEM_ERROR) {return COMP_ERR_LOW_MEMORY;}
-	if(resp==Z_BUF_ERROR) {return COMP_ERR_LIB;}
-
-	*out = (float)outsize/(float)insize;
-
-	/* Thrash the memory and free it */
-	trashMemory(outbuf, OUTBUFSIZE);
-	free(outbuf);
-
-	return COMP_SUCCESS;
-}
-
-comp_error_status comp_end(COMP_CTX* ctx)
-{
-	if(ctx == NULL) {return COMP_SUCCESS;} /* Since nothing is left undone */
-
-	mmFree(ctx->buf);
-	ctx->buf = MM_NULL;
-
-	return COMP_SUCCESS;
-}
-
-#endif	/* YARROW_KERNEL */
-