/* * Copyright (c) 2005-2016 Apple Inc. All Rights Reserved. * * @APPLE_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. 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_LICENSE_HEADER_END@ */ /* * libDER.h - main header for libDER, a ROM-capable DER decoding library. * */ #ifndef _LIB_DER_H_ #define _LIB_DER_H_ #include <libDER/libDER_config.h> __BEGIN_DECLS /* * Error returns generated by this library. */ typedef enum { DR_Success = 0, DR_EndOfSequence, /* end of sequence or set */ DR_UnexpectedTag, /* unexpected tag found while decoding */ DR_DecodeError, /* misc. decoding error (badly formatted DER) */ DR_Unimplemented, /* function not implemented in this configuration */ DR_IncompleteSeq, /* incomplete sequence */ DR_ParamErr, /* incoming parameter error */ DR_BufOverflow /* buffer overflow */ /* etc. */ } DERReturn; /* * The structure of a sequence during decode or encode is expressed as * an array of DERItemSpecs. While decoding or encoding a sequence, * each item in the sequence corresponds to one DERItemSpec. */ typedef struct { DERSize offset; /* offset of destination DERItem */ DERTag tag; /* DER tag */ DERShort options; /* DER_DEC_xxx or DER_ENC_xxx */ } DERItemSpec; /* * Macro to obtain offset of a DERDecodedInfo within a struct. * FIXME this is going to need reworking to avoid compiler warnings * on 64-bit compiles. It'll work OK as long as an offset can't be larger * than a DERSize, but the cast from a pointer to a DERSize may * provoke compiler warnings. */ #define DER_OFFSET(type, field) ((DERSize)(&((type *)0)->field)) __END_DECLS #endif /* _LIB_DER_H_ */