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comparison: toolkit/crashreporter/google-breakpad/src/common/mac/macho_id.h
toolkit/crashreporter/google-breakpad/src/common/mac/macho_id.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:c6e6917c64cf |
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| 1 // Copyright (c) 2006, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | |
| 30 // macho_id.h: Functions to gather identifying information from a macho file | |
| 31 // | |
| 32 // Author: Dan Waylonis | |
| 33 | |
| 34 #ifndef COMMON_MAC_MACHO_ID_H__ | |
| 35 #define COMMON_MAC_MACHO_ID_H__ | |
| 36 | |
| 37 #include <limits.h> | |
| 38 #include <mach/machine.h> | |
| 39 #include <mach-o/loader.h> | |
| 40 | |
| 41 #include "common/mac/macho_walker.h" | |
| 42 #include "common/md5.h" | |
| 43 | |
| 44 namespace MacFileUtilities { | |
| 45 | |
| 46 class MachoID { | |
| 47 public: | |
| 48 MachoID(const char *path); | |
| 49 MachoID(const char *path, void *memory, size_t size); | |
| 50 ~MachoID(); | |
| 51 | |
| 52 // For the given |cpu_type| and |cpu_subtype|, return a UUID from the LC_UUID | |
| 53 // command. | |
| 54 // Return false if there isn't a LC_UUID command. | |
| 55 bool UUIDCommand(cpu_type_t cpu_type, | |
| 56 cpu_subtype_t cpu_subtype, | |
| 57 unsigned char identifier[16]); | |
| 58 | |
| 59 // For the given |cpu_type| and |cpu_subtype|, return a UUID from the | |
| 60 // LC_ID_DYLIB command. | |
| 61 // Return false if there isn't a LC_ID_DYLIB command. | |
| 62 bool IDCommand(cpu_type_t cpu_type, | |
| 63 cpu_subtype_t cpu_subtype, | |
| 64 unsigned char identifier[16]); | |
| 65 | |
| 66 // For the given |cpu_type| and |cpu_subtype|, return the Adler32 CRC for the | |
| 67 // mach-o data segment(s). | |
| 68 // Return 0 on error (e.g., if the file is not a mach-o file) | |
| 69 uint32_t Adler32(cpu_type_t cpu_type, | |
| 70 cpu_subtype_t cpu_subtype); | |
| 71 | |
| 72 // For the given |cpu_type|, and |cpu_subtype| return the MD5 for the mach-o | |
| 73 // data segment(s). | |
| 74 // Return true on success, false otherwise | |
| 75 bool MD5(cpu_type_t cpu_type, | |
| 76 cpu_subtype_t cpu_subtype, | |
| 77 unsigned char identifier[16]); | |
| 78 | |
| 79 private: | |
| 80 // Signature of class member function to be called with data read from file | |
| 81 typedef void (MachoID::*UpdateFunction)(unsigned char *bytes, size_t size); | |
| 82 | |
| 83 // Update the CRC value by examining |size| |bytes| and applying the algorithm | |
| 84 // to each byte. | |
| 85 void UpdateCRC(unsigned char *bytes, size_t size); | |
| 86 | |
| 87 // Update the MD5 value by examining |size| |bytes| and applying the algorithm | |
| 88 // to each byte. | |
| 89 void UpdateMD5(unsigned char *bytes, size_t size); | |
| 90 | |
| 91 // Bottleneck for update routines | |
| 92 void Update(MachoWalker *walker, off_t offset, size_t size); | |
| 93 | |
| 94 // Factory for the MachoWalker | |
| 95 bool WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype, | |
| 96 MachoWalker::LoadCommandCallback callback, void *context); | |
| 97 | |
| 98 // The callback from the MachoWalker for CRC and MD5 | |
| 99 static bool WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, | |
| 100 bool swap, void *context); | |
| 101 | |
| 102 // The callback from the MachoWalker for LC_UUID | |
| 103 static bool UUIDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, | |
| 104 bool swap, void *context); | |
| 105 | |
| 106 // The callback from the MachoWalker for LC_ID_DYLIB | |
| 107 static bool IDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, | |
| 108 bool swap, void *context); | |
| 109 | |
| 110 // File path | |
| 111 char path_[PATH_MAX]; | |
| 112 | |
| 113 // Memory region to read from | |
| 114 void *memory_; | |
| 115 | |
| 116 // Size of the memory region | |
| 117 size_t memory_size_; | |
| 118 | |
| 119 // The current crc value | |
| 120 uint32_t crc_; | |
| 121 | |
| 122 // The MD5 context | |
| 123 google_breakpad::MD5Context md5_context_; | |
| 124 | |
| 125 // The current update to call from the Update callback | |
| 126 UpdateFunction update_function_; | |
| 127 }; | |
| 128 | |
| 129 } // namespace MacFileUtilities | |
| 130 | |
| 131 #endif // COMMON_MAC_MACHO_ID_H__ |
