toolkit/crashreporter/google-breakpad/src/common/solaris/guid_creator.cc

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 // Copyright (c) 2007, Google Inc.
michael@0 2 // All rights reserved.
michael@0 3 //
michael@0 4 // Redistribution and use in source and binary forms, with or without
michael@0 5 // modification, are permitted provided that the following conditions are
michael@0 6 // met:
michael@0 7 //
michael@0 8 // * Redistributions of source code must retain the above copyright
michael@0 9 // notice, this list of conditions and the following disclaimer.
michael@0 10 // * Redistributions in binary form must reproduce the above
michael@0 11 // copyright notice, this list of conditions and the following disclaimer
michael@0 12 // in the documentation and/or other materials provided with the
michael@0 13 // distribution.
michael@0 14 // * Neither the name of Google Inc. nor the names of its
michael@0 15 // contributors may be used to endorse or promote products derived from
michael@0 16 // this software without specific prior written permission.
michael@0 17 //
michael@0 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0 29
michael@0 30 // Author: Alfred Peng
michael@0 31
michael@0 32 #include <cassert>
michael@0 33 #include <ctime>
michael@0 34
michael@0 35 #include <stdio.h>
michael@0 36 #include <stdlib.h>
michael@0 37 #include <unistd.h>
michael@0 38
michael@0 39 #include "common/solaris/guid_creator.h"
michael@0 40
michael@0 41 //
michael@0 42 // GUIDGenerator
michael@0 43 //
michael@0 44 // This class is used to generate random GUID.
michael@0 45 // Currently use random number to generate a GUID. This should be OK since
michael@0 46 // we don't expect crash to happen very offen.
michael@0 47 //
michael@0 48 class GUIDGenerator {
michael@0 49 public:
michael@0 50 GUIDGenerator() {
michael@0 51 srandom(time(NULL));
michael@0 52 }
michael@0 53
michael@0 54 bool CreateGUID(GUID *guid) const {
michael@0 55 guid->data1 = random();
michael@0 56 guid->data2 = (uint16_t)(random());
michael@0 57 guid->data3 = (uint16_t)(random());
michael@0 58 *reinterpret_cast<uint32_t*>(&guid->data4[0]) = random();
michael@0 59 *reinterpret_cast<uint32_t*>(&guid->data4[4]) = random();
michael@0 60 return true;
michael@0 61 }
michael@0 62 };
michael@0 63
michael@0 64 // Guid generator.
michael@0 65 const GUIDGenerator kGuidGenerator;
michael@0 66
michael@0 67 bool CreateGUID(GUID *guid) {
michael@0 68 return kGuidGenerator.CreateGUID(guid);
michael@0 69 };
michael@0 70
michael@0 71 // Parse guid to string.
michael@0 72 bool GUIDToString(const GUID *guid, char *buf, int buf_len) {
michael@0 73 // Should allow more space the the max length of GUID.
michael@0 74 assert(buf_len > kGUIDStringLength);
michael@0 75 int num = snprintf(buf, buf_len, kGUIDFormatString,
michael@0 76 guid->data1, guid->data2, guid->data3,
michael@0 77 *reinterpret_cast<const uint32_t *>(&(guid->data4[0])),
michael@0 78 *reinterpret_cast<const uint32_t *>(&(guid->data4[4])));
michael@0 79 if (num != kGUIDStringLength)
michael@0 80 return false;
michael@0 81
michael@0 82 buf[num] = '\0';
michael@0 83 return true;
michael@0 84 }

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