PageRenderTime 14ms CodeModel.GetById 2ms app.highlight 6ms RepoModel.GetById 2ms app.codeStats 0ms

/thirdparty/breakpad/common/linux/file_id.h

http://github.com/tomahawk-player/tomahawk
C++ Header | 77 lines | 20 code | 12 blank | 45 comment | 0 complexity | 8520a2088bf0957847e13a7c2676f0b5 MD5 | raw file
 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// file_id.h: Return a unique identifier for a file
31//
32
33#ifndef COMMON_LINUX_FILE_ID_H__
34#define COMMON_LINUX_FILE_ID_H__
35
36#include <limits.h>
37
38#include "common/linux/guid_creator.h"
39
40namespace google_breakpad {
41
42static const size_t kMDGUIDSize = sizeof(MDGUID);
43
44class FileID {
45 public:
46  explicit FileID(const char* path);
47  ~FileID() {}
48
49  // Load the identifier for the elf file path specified in the constructor into
50  // |identifier|.  Return false if the identifier could not be created for the
51  // file.
52  // The current implementation will look for a .note.gnu.build-id
53  // section and use that as the file id, otherwise it falls back to
54  // XORing the first 4096 bytes of the .text section to generate an identifier.
55  bool ElfFileIdentifier(uint8_t identifier[kMDGUIDSize]);
56
57  // Load the identifier for the elf file mapped into memory at |base| into
58  // |identifier|.  Return false if the identifier could not be created for the
59  // file.
60  static bool ElfFileIdentifierFromMappedFile(const void* base,
61                                              uint8_t identifier[kMDGUIDSize]);
62
63  // Convert the |identifier| data to a NULL terminated string.  The string will
64  // be formatted as a UUID (e.g., 22F065BB-FC9C-49F7-80FE-26A7CEBD7BCE).
65  // The |buffer| should be at least 37 bytes long to receive all of the data
66  // and termination.  Shorter buffers will contain truncated data.
67  static void ConvertIdentifierToString(const uint8_t identifier[kMDGUIDSize],
68                                        char* buffer, int buffer_length);
69
70 private:
71  // Storage for the path specified
72  char path_[PATH_MAX];
73};
74
75}  // namespace google_breakpad
76
77#endif  // COMMON_LINUX_FILE_ID_H__