1fd98b2af3773437487af0df22c428f3db630949awaylonis// Copyright (c) 2006, Google Inc. 2fd98b2af3773437487af0df22c428f3db630949awaylonis// All rights reserved. 3fd98b2af3773437487af0df22c428f3db630949awaylonis// 4fd98b2af3773437487af0df22c428f3db630949awaylonis// Redistribution and use in source and binary forms, with or without 5fd98b2af3773437487af0df22c428f3db630949awaylonis// modification, are permitted provided that the following conditions are 6fd98b2af3773437487af0df22c428f3db630949awaylonis// met: 7fd98b2af3773437487af0df22c428f3db630949awaylonis// 8fd98b2af3773437487af0df22c428f3db630949awaylonis// * Redistributions of source code must retain the above copyright 9fd98b2af3773437487af0df22c428f3db630949awaylonis// notice, this list of conditions and the following disclaimer. 10fd98b2af3773437487af0df22c428f3db630949awaylonis// * Redistributions in binary form must reproduce the above 11fd98b2af3773437487af0df22c428f3db630949awaylonis// copyright notice, this list of conditions and the following disclaimer 12fd98b2af3773437487af0df22c428f3db630949awaylonis// in the documentation and/or other materials provided with the 13fd98b2af3773437487af0df22c428f3db630949awaylonis// distribution. 14fd98b2af3773437487af0df22c428f3db630949awaylonis// * Neither the name of Google Inc. nor the names of its 15fd98b2af3773437487af0df22c428f3db630949awaylonis// contributors may be used to endorse or promote products derived from 16fd98b2af3773437487af0df22c428f3db630949awaylonis// this software without specific prior written permission. 17fd98b2af3773437487af0df22c428f3db630949awaylonis// 18fd98b2af3773437487af0df22c428f3db630949awaylonis// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19fd98b2af3773437487af0df22c428f3db630949awaylonis// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20fd98b2af3773437487af0df22c428f3db630949awaylonis// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21fd98b2af3773437487af0df22c428f3db630949awaylonis// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22fd98b2af3773437487af0df22c428f3db630949awaylonis// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23fd98b2af3773437487af0df22c428f3db630949awaylonis// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24fd98b2af3773437487af0df22c428f3db630949awaylonis// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25fd98b2af3773437487af0df22c428f3db630949awaylonis// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26fd98b2af3773437487af0df22c428f3db630949awaylonis// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27fd98b2af3773437487af0df22c428f3db630949awaylonis// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28fd98b2af3773437487af0df22c428f3db630949awaylonis// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29e5dc60822e5938fea2ae892ccddb906641ba174emmentovai 30fd98b2af3773437487af0df22c428f3db630949awaylonis// file_id.cc: Return a unique identifier for a file 31fd98b2af3773437487af0df22c428f3db630949awaylonis// 32fd98b2af3773437487af0df22c428f3db630949awaylonis// See file_id.h for documentation 33fd98b2af3773437487af0df22c428f3db630949awaylonis// 34fd98b2af3773437487af0df22c428f3db630949awaylonis// Author: Dan Waylonis 35fd98b2af3773437487af0df22c428f3db630949awaylonis 36fd98b2af3773437487af0df22c428f3db630949awaylonis#include <fcntl.h> 37fd98b2af3773437487af0df22c428f3db630949awaylonis#include <string.h> 38fd98b2af3773437487af0df22c428f3db630949awaylonis#include <unistd.h> 39fd98b2af3773437487af0df22c428f3db630949awaylonis 40fd98b2af3773437487af0df22c428f3db630949awaylonis#include "common/mac/file_id.h" 41fd98b2af3773437487af0df22c428f3db630949awaylonis#include "common/mac/macho_id.h" 42fd98b2af3773437487af0df22c428f3db630949awaylonis 43fd98b2af3773437487af0df22c428f3db630949awaylonisusing MacFileUtilities::MachoID; 44fd98b2af3773437487af0df22c428f3db630949awaylonis 45e5dc60822e5938fea2ae892ccddb906641ba174emmentovainamespace google_breakpad { 46fd98b2af3773437487af0df22c428f3db630949awaylonis 47fd98b2af3773437487af0df22c428f3db630949awaylonisFileID::FileID(const char *path) { 48fd98b2af3773437487af0df22c428f3db630949awaylonis strlcpy(path_, path, sizeof(path_)); 49fd98b2af3773437487af0df22c428f3db630949awaylonis} 50fd98b2af3773437487af0df22c428f3db630949awaylonis 51fd98b2af3773437487af0df22c428f3db630949awaylonisbool FileID::FileIdentifier(unsigned char identifier[16]) { 52fd98b2af3773437487af0df22c428f3db630949awaylonis int fd = open(path_, O_RDONLY); 53fd98b2af3773437487af0df22c428f3db630949awaylonis if (fd == -1) 54fd98b2af3773437487af0df22c428f3db630949awaylonis return false; 55fd98b2af3773437487af0df22c428f3db630949awaylonis 56e919fdd63b4550a3261422ffde3c8d631007f75bmark@chromium.org MD5Context md5; 57e919fdd63b4550a3261422ffde3c8d631007f75bmark@chromium.org MD5Init(&md5); 58fd98b2af3773437487af0df22c428f3db630949awaylonis 59fd98b2af3773437487af0df22c428f3db630949awaylonis // Read 4k x 2 bytes at a time. This is faster than just 4k bytes, but 60fd98b2af3773437487af0df22c428f3db630949awaylonis // doesn't seem to be an unreasonable size for the stack. 61fd98b2af3773437487af0df22c428f3db630949awaylonis unsigned char buffer[4096 * 2]; 62fd98b2af3773437487af0df22c428f3db630949awaylonis size_t buffer_size = sizeof(buffer); 63fd98b2af3773437487af0df22c428f3db630949awaylonis while ((buffer_size = read(fd, buffer, buffer_size) > 0)) { 64360347fe279b42eb00cef7863f3d44e7eb0d236civan.penkov@gmail.com MD5Update(&md5, buffer, static_cast<unsigned>(buffer_size)); 65fd98b2af3773437487af0df22c428f3db630949awaylonis } 66fd98b2af3773437487af0df22c428f3db630949awaylonis 67fd98b2af3773437487af0df22c428f3db630949awaylonis close(fd); 68e919fdd63b4550a3261422ffde3c8d631007f75bmark@chromium.org MD5Final(identifier, &md5); 69fd98b2af3773437487af0df22c428f3db630949awaylonis 70fd98b2af3773437487af0df22c428f3db630949awaylonis return true; 71fd98b2af3773437487af0df22c428f3db630949awaylonis} 72fd98b2af3773437487af0df22c428f3db630949awaylonis 73b2cb7ad7bc83205d23f77b660438bf8e8d16fcb5qsr@chromium.orgbool FileID::MachoIdentifier(cpu_type_t cpu_type, 74b2cb7ad7bc83205d23f77b660438bf8e8d16fcb5qsr@chromium.org cpu_subtype_t cpu_subtype, 75b2cb7ad7bc83205d23f77b660438bf8e8d16fcb5qsr@chromium.org unsigned char identifier[16]) { 76fd98b2af3773437487af0df22c428f3db630949awaylonis MachoID macho(path_); 77fd98b2af3773437487af0df22c428f3db630949awaylonis 78b2cb7ad7bc83205d23f77b660438bf8e8d16fcb5qsr@chromium.org if (macho.UUIDCommand(cpu_type, cpu_subtype, identifier)) 79fd98b2af3773437487af0df22c428f3db630949awaylonis return true; 80fd98b2af3773437487af0df22c428f3db630949awaylonis 81b2cb7ad7bc83205d23f77b660438bf8e8d16fcb5qsr@chromium.org return macho.MD5(cpu_type, cpu_subtype, identifier); 82fd98b2af3773437487af0df22c428f3db630949awaylonis} 83fd98b2af3773437487af0df22c428f3db630949awaylonis 84fd98b2af3773437487af0df22c428f3db630949awaylonis// static 85fd98b2af3773437487af0df22c428f3db630949awaylonisvoid FileID::ConvertIdentifierToString(const unsigned char identifier[16], 86fd98b2af3773437487af0df22c428f3db630949awaylonis char *buffer, int buffer_length) { 87fd98b2af3773437487af0df22c428f3db630949awaylonis int buffer_idx = 0; 88fd98b2af3773437487af0df22c428f3db630949awaylonis for (int idx = 0; (buffer_idx < buffer_length) && (idx < 16); ++idx) { 89fd98b2af3773437487af0df22c428f3db630949awaylonis int hi = (identifier[idx] >> 4) & 0x0F; 90fd98b2af3773437487af0df22c428f3db630949awaylonis int lo = (identifier[idx]) & 0x0F; 91fd98b2af3773437487af0df22c428f3db630949awaylonis 92fd98b2af3773437487af0df22c428f3db630949awaylonis if (idx == 4 || idx == 6 || idx == 8 || idx == 10) 93fd98b2af3773437487af0df22c428f3db630949awaylonis buffer[buffer_idx++] = '-'; 94fd98b2af3773437487af0df22c428f3db630949awaylonis 95486229ba5044ee2e7f49d2f6000e6535f2fca46cqsr@chromium.org buffer[buffer_idx++] = 96486229ba5044ee2e7f49d2f6000e6535f2fca46cqsr@chromium.org static_cast<char>((hi >= 10) ? ('A' + hi - 10) : ('0' + hi)); 97486229ba5044ee2e7f49d2f6000e6535f2fca46cqsr@chromium.org buffer[buffer_idx++] = 98486229ba5044ee2e7f49d2f6000e6535f2fca46cqsr@chromium.org static_cast<char>((lo >= 10) ? ('A' + lo - 10) : ('0' + lo)); 99fd98b2af3773437487af0df22c428f3db630949awaylonis } 100fd98b2af3773437487af0df22c428f3db630949awaylonis 101fd98b2af3773437487af0df22c428f3db630949awaylonis // NULL terminate 102fd98b2af3773437487af0df22c428f3db630949awaylonis buffer[(buffer_idx < buffer_length) ? buffer_idx : buffer_idx - 1] = 0; 103fd98b2af3773437487af0df22c428f3db630949awaylonis} 104fd98b2af3773437487af0df22c428f3db630949awaylonis 105e5dc60822e5938fea2ae892ccddb906641ba174emmentovai} // namespace google_breakpad 106