The Tor Browser / file comparison
comparison: toolkit/crashreporter/google-breakpad/src/common/mac/file_id.cc
toolkit/crashreporter/google-breakpad/src/common/mac/file_id.cc
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:d007a16ff33b |
|---|---|
| 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.cc: Return a unique identifier for a file | |
| 31 // | |
| 32 // See file_id.h for documentation | |
| 33 // | |
| 34 // Author: Dan Waylonis | |
| 35 | |
| 36 #include <fcntl.h> | |
| 37 #include <string.h> | |
| 38 #include <unistd.h> | |
| 39 | |
| 40 #include "common/mac/file_id.h" | |
| 41 #include "common/mac/macho_id.h" | |
| 42 | |
| 43 using MacFileUtilities::MachoID; | |
| 44 | |
| 45 namespace google_breakpad { | |
| 46 | |
| 47 FileID::FileID(const char *path) { | |
| 48 strlcpy(path_, path, sizeof(path_)); | |
| 49 } | |
| 50 | |
| 51 bool FileID::FileIdentifier(unsigned char identifier[16]) { | |
| 52 int fd = open(path_, O_RDONLY); | |
| 53 if (fd == -1) | |
| 54 return false; | |
| 55 | |
| 56 MD5Context md5; | |
| 57 MD5Init(&md5); | |
| 58 | |
| 59 // Read 4k x 2 bytes at a time. This is faster than just 4k bytes, but | |
| 60 // doesn't seem to be an unreasonable size for the stack. | |
| 61 unsigned char buffer[4096 * 2]; | |
| 62 size_t buffer_size = sizeof(buffer); | |
| 63 while ((buffer_size = read(fd, buffer, buffer_size) > 0)) { | |
| 64 MD5Update(&md5, buffer, buffer_size); | |
| 65 } | |
| 66 | |
| 67 close(fd); | |
| 68 MD5Final(identifier, &md5); | |
| 69 | |
| 70 return true; | |
| 71 } | |
| 72 | |
| 73 bool FileID::MachoIdentifier(cpu_type_t cpu_type, | |
| 74 cpu_subtype_t cpu_subtype, | |
| 75 unsigned char identifier[16]) { | |
| 76 MachoID macho(path_); | |
| 77 | |
| 78 if (macho.UUIDCommand(cpu_type, cpu_subtype, identifier)) | |
| 79 return true; | |
| 80 | |
| 81 return macho.MD5(cpu_type, cpu_subtype, identifier); | |
| 82 } | |
| 83 | |
| 84 // static | |
| 85 void FileID::ConvertIdentifierToString(const unsigned char identifier[16], | |
| 86 char *buffer, int buffer_length) { | |
| 87 int buffer_idx = 0; | |
| 88 for (int idx = 0; (buffer_idx < buffer_length) && (idx < 16); ++idx) { | |
| 89 int hi = (identifier[idx] >> 4) & 0x0F; | |
| 90 int lo = (identifier[idx]) & 0x0F; | |
| 91 | |
| 92 if (idx == 4 || idx == 6 || idx == 8 || idx == 10) | |
| 93 buffer[buffer_idx++] = '-'; | |
| 94 | |
| 95 buffer[buffer_idx++] = | |
| 96 static_cast<char>((hi >= 10) ? ('A' + hi - 10) : ('0' + hi)); | |
| 97 buffer[buffer_idx++] = | |
| 98 static_cast<char>((lo >= 10) ? ('A' + lo - 10) : ('0' + lo)); | |
| 99 } | |
| 100 | |
| 101 // NULL terminate | |
| 102 buffer[(buffer_idx < buffer_length) ? buffer_idx : buffer_idx - 1] = 0; | |
| 103 } | |
| 104 | |
| 105 } // namespace google_breakpad |
