/* * 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. */ /* * asn_len.h * * Warning: many of these routines are MACROs for performance reasons * - be carful where you use them. Don't use more than one per * assignment statement - * (eg itemLen += BEncEoc (b) + BEncFoo (b) ..; this * will break the code) * * 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/asn-len.h,v 1.1.1.1 2001/05/18 23:14:08 mb Exp $ * $Log: asn-len.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 00:59:22 rmurphy * Adding darwin license headers * * Revision 1.1.1.1 1999/03/16 18:06:20 aram * Originals from SMIME Free Library. * * Revision 1.2 1995/07/27 08:42:40 rj * cpp macro TBL changed to TTBL since some type table code uses TBL as a type name. * * changed `_' to `-' in file names. * * Revision 1.1 1994/08/28 09:21:29 rj * first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog. * */ #ifndef _asn_len_h_ #define _asn_len_h_ typedef unsigned long int AsnLen; /* max unsigned value - used for internal rep of indef len */ #define INDEFINITE_LEN ~0L #ifdef USE_INDEF_LEN #define BEncEocIfNec( b) BEncEoc (b) /* * include len for EOC (2 must be first due to BEncIndefLen * - ack! ugly macros!) */ #define BEncConsLen( b, len) 2 + BEncIndefLen(b) #else /* use definite length - faster?/smaller encodings */ /* do nothing since only using definite lens */ #define BEncEocIfNec( b) #define BEncConsLen( b, len) BEncDefLen(b, len) #endif /* * writes indefinite length byte to buffer. 'returns' encoded len (1) */ #define BEncIndefLen( b)\ 1;\ BufPutByteRvs (b, 0x80); #define BEncEoc( b)\ 2;\ BufPutByteRvs (b, 0);\ BufPutByteRvs (b, 0); /* * use if you know the encoded length will be 0 >= len <= 127 * Eg for booleans, nulls, any resonable integers and reals * * NOTE: this particular Encode Routine does NOT return the length * encoded (1). */ #define BEncDefLenTo127( b, len)\ BufPutByteRvs (b, (unsigned char) len) #define BDEC_2ND_EOC_OCTET( b, bytesDecoded, env)\ {\ if ((BufGetByte (b) != 0) || BufReadError (b)) {\ Asn1Error ("ERROR - second octet of EOC not zero\n");\ longjmp (env, -28);}\ (*bytesDecoded)++;\ } AsnLen BEncDefLen PROTO ((BUF_TYPE b, AsnLen len)); AsnLen BDecLen PROTO ((BUF_TYPE b, AsnLen *bytesDecoded, ENV_TYPE env)); /* AsnLen BEncEoc PROTO ((BUF_TYPE b)); */ void BDecEoc PROTO ((BUF_TYPE b, AsnLen *bytesDecoded, ENV_TYPE env)); #if TTBL int PeekEoc PROTO ((BUF_TYPE b)); #endif #endif /* conditional include */