toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h@6474c204b198 (annotated)
toolkit/crashreporter/google-breakpad/src/common/linux/file_id.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Copyright (c) 2006, Google Inc. |
| michael@0 | 2 | // All rights reserved. |
| michael@0 | 3 | // |
| michael@0 | 4 | // Redistribution and use in source and binary forms, with or without |
| michael@0 | 5 | // modification, are permitted provided that the following conditions are |
| michael@0 | 6 | // met: |
| michael@0 | 7 | // |
| michael@0 | 8 | // * Redistributions of source code must retain the above copyright |
| michael@0 | 9 | // notice, this list of conditions and the following disclaimer. |
| michael@0 | 10 | // * Redistributions in binary form must reproduce the above |
| michael@0 | 11 | // copyright notice, this list of conditions and the following disclaimer |
| michael@0 | 12 | // in the documentation and/or other materials provided with the |
| michael@0 | 13 | // distribution. |
| michael@0 | 14 | // * Neither the name of Google Inc. nor the names of its |
| michael@0 | 15 | // contributors may be used to endorse or promote products derived from |
| michael@0 | 16 | // this software without specific prior written permission. |
| michael@0 | 17 | // |
| michael@0 | 18 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 19 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 20 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 21 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 22 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 23 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 24 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 25 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 26 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 27 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 28 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 29 | // |
| michael@0 | 30 | // file_id.h: Return a unique identifier for a file |
| michael@0 | 31 | // |
| michael@0 | 32 | |
| michael@0 | 33 | #ifndef COMMON_LINUX_FILE_ID_H__ |
| michael@0 | 34 | #define COMMON_LINUX_FILE_ID_H__ |
| michael@0 | 35 | |
| michael@0 | 36 | #include <limits.h> |
| michael@0 | 37 | |
| michael@0 | 38 | #include "common/linux/guid_creator.h" |
| michael@0 | 39 | |
| michael@0 | 40 | namespace google_breakpad { |
| michael@0 | 41 | |
| michael@0 | 42 | static const size_t kMDGUIDSize = sizeof(MDGUID); |
| michael@0 | 43 | |
| michael@0 | 44 | class FileID { |
| michael@0 | 45 | public: |
| michael@0 | 46 | explicit FileID(const char* path); |
| michael@0 | 47 | ~FileID() {} |
| michael@0 | 48 | |
| michael@0 | 49 | // Load the identifier for the elf file path specified in the constructor into |
| michael@0 | 50 | // |identifier|. Return false if the identifier could not be created for the |
| michael@0 | 51 | // file. |
| michael@0 | 52 | // The current implementation will look for a .note.gnu.build-id |
| michael@0 | 53 | // section and use that as the file id, otherwise it falls back to |
| michael@0 | 54 | // XORing the first 4096 bytes of the .text section to generate an identifier. |
| michael@0 | 55 | bool ElfFileIdentifier(uint8_t identifier[kMDGUIDSize]); |
| michael@0 | 56 | |
| michael@0 | 57 | // Load the identifier for the elf file mapped into memory at |base| into |
| michael@0 | 58 | // |identifier|. Return false if the identifier could not be created for the |
| michael@0 | 59 | // file. |
| michael@0 | 60 | static bool ElfFileIdentifierFromMappedFile(const void* base, |
| michael@0 | 61 | uint8_t identifier[kMDGUIDSize]); |
| michael@0 | 62 | |
| michael@0 | 63 | // Convert the |identifier| data to a NULL terminated string. The string will |
| michael@0 | 64 | // be formatted as a UUID (e.g., 22F065BB-FC9C-49F7-80FE-26A7CEBD7BCE). |
| michael@0 | 65 | // The |buffer| should be at least 37 bytes long to receive all of the data |
| michael@0 | 66 | // and termination. Shorter buffers will contain truncated data. |
| michael@0 | 67 | static void ConvertIdentifierToString(const uint8_t identifier[kMDGUIDSize], |
| michael@0 | 68 | char* buffer, int buffer_length); |
| michael@0 | 69 | |
| michael@0 | 70 | private: |
| michael@0 | 71 | // Storage for the path specified |
| michael@0 | 72 | char path_[PATH_MAX]; |
| michael@0 | 73 | }; |
| michael@0 | 74 | |
| michael@0 | 75 | } // namespace google_breakpad |
| michael@0 | 76 | |
| michael@0 | 77 | #endif // COMMON_LINUX_FILE_ID_H__ |
