1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/crashreporter/google-breakpad/src/common/mac/file_id.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,105 @@
1.4 +// Copyright (c) 2006, Google Inc.
1.5 +// All rights reserved.
1.6 +//
1.7 +// Redistribution and use in source and binary forms, with or without
1.8 +// modification, are permitted provided that the following conditions are
1.9 +// met:
1.10 +//
1.11 +// * Redistributions of source code must retain the above copyright
1.12 +// notice, this list of conditions and the following disclaimer.
1.13 +// * Redistributions in binary form must reproduce the above
1.14 +// copyright notice, this list of conditions and the following disclaimer
1.15 +// in the documentation and/or other materials provided with the
1.16 +// distribution.
1.17 +// * Neither the name of Google Inc. nor the names of its
1.18 +// contributors may be used to endorse or promote products derived from
1.19 +// this software without specific prior written permission.
1.20 +//
1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +
1.33 +// file_id.cc: Return a unique identifier for a file
1.34 +//
1.35 +// See file_id.h for documentation
1.36 +//
1.37 +// Author: Dan Waylonis
1.38 +
1.39 +#include <fcntl.h>
1.40 +#include <string.h>
1.41 +#include <unistd.h>
1.42 +
1.43 +#include "common/mac/file_id.h"
1.44 +#include "common/mac/macho_id.h"
1.45 +
1.46 +using MacFileUtilities::MachoID;
1.47 +
1.48 +namespace google_breakpad {
1.49 +
1.50 +FileID::FileID(const char *path) {
1.51 + strlcpy(path_, path, sizeof(path_));
1.52 +}
1.53 +
1.54 +bool FileID::FileIdentifier(unsigned char identifier[16]) {
1.55 + int fd = open(path_, O_RDONLY);
1.56 + if (fd == -1)
1.57 + return false;
1.58 +
1.59 + MD5Context md5;
1.60 + MD5Init(&md5);
1.61 +
1.62 + // Read 4k x 2 bytes at a time. This is faster than just 4k bytes, but
1.63 + // doesn't seem to be an unreasonable size for the stack.
1.64 + unsigned char buffer[4096 * 2];
1.65 + size_t buffer_size = sizeof(buffer);
1.66 + while ((buffer_size = read(fd, buffer, buffer_size) > 0)) {
1.67 + MD5Update(&md5, buffer, buffer_size);
1.68 + }
1.69 +
1.70 + close(fd);
1.71 + MD5Final(identifier, &md5);
1.72 +
1.73 + return true;
1.74 +}
1.75 +
1.76 +bool FileID::MachoIdentifier(cpu_type_t cpu_type,
1.77 + cpu_subtype_t cpu_subtype,
1.78 + unsigned char identifier[16]) {
1.79 + MachoID macho(path_);
1.80 +
1.81 + if (macho.UUIDCommand(cpu_type, cpu_subtype, identifier))
1.82 + return true;
1.83 +
1.84 + return macho.MD5(cpu_type, cpu_subtype, identifier);
1.85 +}
1.86 +
1.87 +// static
1.88 +void FileID::ConvertIdentifierToString(const unsigned char identifier[16],
1.89 + char *buffer, int buffer_length) {
1.90 + int buffer_idx = 0;
1.91 + for (int idx = 0; (buffer_idx < buffer_length) && (idx < 16); ++idx) {
1.92 + int hi = (identifier[idx] >> 4) & 0x0F;
1.93 + int lo = (identifier[idx]) & 0x0F;
1.94 +
1.95 + if (idx == 4 || idx == 6 || idx == 8 || idx == 10)
1.96 + buffer[buffer_idx++] = '-';
1.97 +
1.98 + buffer[buffer_idx++] =
1.99 + static_cast<char>((hi >= 10) ? ('A' + hi - 10) : ('0' + hi));
1.100 + buffer[buffer_idx++] =
1.101 + static_cast<char>((lo >= 10) ? ('A' + lo - 10) : ('0' + lo));
1.102 + }
1.103 +
1.104 + // NULL terminate
1.105 + buffer[(buffer_idx < buffer_length) ? buffer_idx : buffer_idx - 1] = 0;
1.106 +}
1.107 +
1.108 +} // namespace google_breakpad
