78 lines
3.2 KiB
C++
78 lines
3.2 KiB
C++
// Copyright (c) 2006, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// file_id.h: Return a unique identifier for a file
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//
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#ifndef COMMON_LINUX_FILE_ID_H__
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#define COMMON_LINUX_FILE_ID_H__
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#include <limits.h>
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#include "common/linux/guid_creator.h"
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namespace google_breakpad {
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static const size_t kMDGUIDSize = sizeof(MDGUID);
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class FileID {
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public:
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explicit FileID(const char* path);
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~FileID() {}
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// Load the identifier for the elf file path specified in the constructor into
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// |identifier|. Return false if the identifier could not be created for the
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// file.
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// The current implementation will look for a .note.gnu.build-id
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// section and use that as the file id, otherwise it falls back to
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// XORing the first 4096 bytes of the .text section to generate an identifier.
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bool ElfFileIdentifier(uint8_t identifier[kMDGUIDSize]);
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// Load the identifier for the elf file mapped into memory at |base| into
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// |identifier|. Return false if the identifier could not be created for the
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// file.
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static bool ElfFileIdentifierFromMappedFile(const void* base,
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uint8_t identifier[kMDGUIDSize]);
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// Convert the |identifier| data to a NULL terminated string. The string will
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// be formatted as a UUID (e.g., 22F065BB-FC9C-49F7-80FE-26A7CEBD7BCE).
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// The |buffer| should be at least 37 bytes long to receive all of the data
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// and termination. Shorter buffers will contain truncated data.
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static void ConvertIdentifierToString(const uint8_t identifier[kMDGUIDSize],
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char* buffer, int buffer_length);
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private:
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// Storage for the path specified
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char path_[PATH_MAX];
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};
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} // namespace google_breakpad
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#endif // COMMON_LINUX_FILE_ID_H__
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