projects / apple / security.git / blame
| Commit | Line | Data |
|---|---|---|
| b1ab9ed8 | 1 | /* |
| d8f41ccd | 2 | * Copyright (c) 2007,2011,2013 Apple Inc. All Rights Reserved. |
| b1ab9ed8 A |
3 | * |
| 4 | * @APPLE_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. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 24 | // | |
| 25 | // reqreader - Requirement language (exprOp) reader/scanner | |
| 26 | // | |
| 27 | #ifndef _H_REQREADER | |
| 28 | #define _H_REQREADER | |
| 29 | ||
| 866f8763 | 30 | #include "requirement.h" |
| b1ab9ed8 A |
31 | #include <Security/SecCertificate.h> |
| 32 | ||
| 33 | namespace Security { | |
| 34 | namespace CodeSigning { | |
| 35 | ||
| 36 | ||
| 37 | // | |
| 38 | // The Reader class provides structured access to a opExpr-type code requirement. | |
| 39 | // | |
| 40 | class Requirement::Reader { | |
| 41 | public: | |
| 42 | Reader(const Requirement *req); | |
| 43 | ||
| 44 | const Requirement *requirement() const { return mReq; } | |
| 45 | ||
| 46 | template <class T> T get(); | |
| 47 | void getData(const void *&data, size_t &length); | |
| 48 | ||
| 49 | std::string getString(); | |
| 5c19dc3a | 50 | CFDataRef getHash(); |
| b1ab9ed8 A |
51 | const unsigned char *getSHA1(); |
| 52 | ||
| 53 | template <class T> void getData(T *&data, size_t &length) | |
| 54 | { return getData(reinterpret_cast<const void *&>(data), length); } | |
| 55 | ||
| 56 | protected: | |
| 57 | void checkSize(size_t length) | |
| 58 | { | |
| 427c49bc | 59 | if (mPC + length < mPC || mPC + length > mReq->length()) |
| b1ab9ed8 A |
60 | MacOSError::throwMe(errSecCSReqInvalid); |
| 61 | } | |
| 62 | ||
| 63 | void skip(size_t length); | |
| 64 | ||
| 65 | Offset pc() const { return mPC; } | |
| 66 | bool atEnd() const { return mPC >= mReq->length(); } | |
| 67 | ||
| 68 | private: | |
| 69 | const Requirement * const mReq; | |
| 70 | Offset mPC; | |
| 71 | }; | |
| 72 | ||
| 73 | template <class T> | |
| 74 | T Requirement::Reader::get() | |
| 75 | { | |
| 76 | checkSize(sizeof(T)); | |
| 77 | const Endian<const T> *value = mReq->at<Endian<const T> >(mPC); | |
| 78 | mPC += sizeof(T); | |
| 79 | return *value; | |
| 80 | } | |
| 81 | ||
| 82 | ||
| 83 | } // CodeSigning | |
| 84 | } // Security | |
| 85 | ||
| 86 | #endif //_H_REQREADER |