/* * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved. * * The contents of this file constitute Original Code as defined in and are * subject to the Apple Public Source License Version 1.2 (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, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the * specific language governing rights and limitations under the License. */ /* * .../c-lib/inc/min-buf.h - trivial buffer routines. * only use these for * encoding - if you know you 'buffer' is big enough * to hold the encoded value * * decoding - if you know that the encoding is error * free. * * * The minimal buffer is simply a block of mem referenced * by a char **(ie BUF_TYPE char**). These are very efficient * but should only be used when it is safe (see above) or you're * willing to risk reading past the end of the buffer or writing * 'past' the beginning (segmentation faults/bus errors etc). * * No checks for reading or writing past the buffer are done. * every operation is assumed to succeed. * MS 92 * * Copyright (C) 1992 Michael Sample and the University of British Columbia * * This library is free software; you can redistribute it and/or * modify it provided that this copyright/license information is retained * in original form. * * If you modify this file, you must clearly indicate your changes. * * This source code is distributed in the hope that it will be * useful, but WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * $Header: /cvs/Darwin/Security/SecuritySNACCRuntime/c-lib/inc/min-buf.h,v 1.1.1.1 2001/05/18 23:14:08 mb Exp $ * $Log: min-buf.h,v $ * Revision 1.1.1.1 2001/05/18 23:14:08 mb * Move from private repository to open source repository * * Revision 1.2 2001/05/05 00:59:23 rmurphy * Adding darwin license headers * * Revision 1.1.1.1 1999/03/16 18:06:21 aram * Originals from SMIME Free Library. * * Revision 1.2 1995/07/24 21:01:21 rj * changed `_' to `-' in file names. * * Revision 1.1 1994/08/28 09:21:42 rj * first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog. * */ #ifndef _min_buf_h_ #define _min_buf_h_ #define MinBufGetByte(b)\ (unsigned char)(*((*(b))++)) #define MinBufGetSeg( b, lenPtr)\ *(b);\ (*b) += *lenPtr; #define MinBufCopy( dst, b, len)\ memcpy ((dst), *(b), (len));\ (*(b)) += (len); #define MinBufSkip( b, len) ((*(b)) += len) #define MinBufPeekByte( b) (**(b)) #define MinBufPutByteRvs( b, byte)\ (*(--(*(b))) = (byte)) #define MinBufPutSegRvs( b, data, len)\ ((*(b)) = (*(b)) - (len));\ memcpy (*(b), (data), (len)); #define MinBufReadError( b) 0 /* always false */ #define MinBufWriteError( b) 0 /* always false */ #endif /* conditional include */