toolkit/crashreporter/google-breakpad/src/common/logging.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.

     1 // Copyright (c) 2007, 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.
    30 // logging.cc: Breakpad logging
    31 //
    32 // See logging.h for documentation.
    33 //
    34 // Author: Mark Mentovai
    36 #include <assert.h>
    37 #include <errno.h>
    38 #include <stdio.h>
    39 #include <string.h>
    40 #include <time.h>
    42 #include <string>
    44 #include "common/using_std_string.h"
    45 #include "common/logging.h"
    46 #include "common/pathname_stripper.h"
    48 #ifdef _WIN32
    49 #define snprintf _snprintf
    50 #endif
    52 #ifdef __ANDROID__
    53 # include <android/log.h>
    54 #endif
    56 namespace google_breakpad {
    58 LogStream::LogStream(std::ostream &stream, Severity severity,
    59                      const char *file, int line)
    60     : stream_(stream) {
    61   time_t clock;
    62   time(&clock);
    63   struct tm tm_struct;
    64 #ifdef _WIN32
    65   localtime_s(&tm_struct, &clock);
    66 #else
    67   localtime_r(&clock, &tm_struct);
    68 #endif
    69   char time_string[20];
    70   strftime(time_string, sizeof(time_string), "%Y-%m-%d %H:%M:%S", &tm_struct);
    72   const char *severity_string = "UNKNOWN_SEVERITY";
    73   switch (severity) {
    74     case SEVERITY_INFO:
    75       severity_string = "INFO";
    76       break;
    77     case SEVERITY_ERROR:
    78       severity_string = "ERROR";
    79       break;
    80   }
    82   str_ << time_string << ": " << PathnameStripper::File(file) << ":" <<
    83           line << ": " << severity_string << ": ";
    84 }
    86 LogStream::~LogStream() {
    87 #ifdef __ANDROID__
    88   __android_log_print(ANDROID_LOG_ERROR,
    89                       "Profiler", "%s", str_.str().c_str());
    90 #else
    91   stream_ << str_.str();
    92   stream_ << std::endl;
    93 #endif
    94 }
    96 string HexString(uint32_t number) {
    97   char buffer[11];
    98   snprintf(buffer, sizeof(buffer), "0x%x", number);
    99   return string(buffer);
   100 }
   102 string HexString(uint64_t number) {
   103   char buffer[19];
   104   snprintf(buffer, sizeof(buffer), "0x%" PRIx64, number);
   105   return string(buffer);
   106 }
   108 string HexString(int number) {
   109   char buffer[19];
   110   snprintf(buffer, sizeof(buffer), "0x%x", number);
   111   return string(buffer);
   112 }
   114 int ErrnoString(string *error_string) {
   115   assert(error_string);
   117   // strerror isn't necessarily thread-safe.  strerror_r would be preferrable,
   118   // but GNU libc uses a nonstandard strerror_r by default, which returns a
   119   // char* (rather than an int success indicator) and doesn't necessarily
   120   // use the supplied buffer.
   121   error_string->assign(strerror(errno));
   122   return errno;
   123 }
   125 }  // namespace google_breakpad
   127 bool is_power_of_2(uint64_t x_in)
   128 {
   129   uint64_t x = x_in;
   130   x = x | (x >> 1);
   131   x = x | (x >> 2);
   132   x = x | (x >> 4);
   133   x = x | (x >> 8);
   134   x = x | (x >> 16);
   135   x = x | (x >> 32);
   136   x = x - (x >> 1);
   137   // x has now been rounded down to the nearest power of 2 <= x_in.
   138   return x == x_in;
   139 }

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