Line data    Source code

       1             : // Copyright (c) 2012 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             : #include <stdio.h>
      31             : 
      32             : #include "linux/handler/guid_generator.h"
      33             : #include "linux/handler/minidump_descriptor.h"
      34             : 
      35             : namespace google_breakpad {
      36             : 
      37             : //static
      38             : const MinidumpDescriptor::MicrodumpOnConsole
      39             :     MinidumpDescriptor::kMicrodumpOnConsole = {};
      40             : 
      41           0 : MinidumpDescriptor::MinidumpDescriptor(const MinidumpDescriptor& descriptor)
      42           0 :     : mode_(descriptor.mode_),
      43           0 :       fd_(descriptor.fd_),
      44             :       directory_(descriptor.directory_),
      45             :       c_path_(NULL),
      46           0 :       size_limit_(descriptor.size_limit_),
      47           0 :       microdump_extra_info_(descriptor.microdump_extra_info_) {
      48             :   // The copy constructor is not allowed to be called on a MinidumpDescriptor
      49             :   // with a valid path_, as getting its c_path_ would require the heap which
      50             :   // can cause problems in compromised environments.
      51           0 :   assert(descriptor.path_.empty());
      52           0 : }
      53             : 
      54           0 : MinidumpDescriptor& MinidumpDescriptor::operator=(
      55             :     const MinidumpDescriptor& descriptor) {
      56           0 :   assert(descriptor.path_.empty());
      57             : 
      58           0 :   mode_ = descriptor.mode_;
      59           0 :   fd_ = descriptor.fd_;
      60           0 :   directory_ = descriptor.directory_;
      61           0 :   path_.clear();
      62           0 :   if (c_path_) {
      63             :     // This descriptor already had a path set, so generate a new one.
      64           0 :     c_path_ = NULL;
      65           0 :     UpdatePath();
      66             :   }
      67           0 :   size_limit_ = descriptor.size_limit_;
      68           0 :   microdump_extra_info_ = descriptor.microdump_extra_info_;
      69           0 :   return *this;
      70             : }
      71             : 
      72           0 : void MinidumpDescriptor::UpdatePath() {
      73           0 :   assert(mode_ == kWriteMinidumpToFile && !directory_.empty());
      74             : 
      75             :   GUID guid;
      76             :   char guid_str[kGUIDStringLength + 1];
      77           0 :   if (!CreateGUID(&guid) || !GUIDToString(&guid, guid_str, sizeof(guid_str))) {
      78           0 :     assert(false);
      79             :   }
      80             : 
      81           0 :   path_.clear();
      82           0 :   path_ = directory_ + "/" + guid_str + ".dmp";
      83           0 :   c_path_ = path_.c_str();
      84           0 : }
      85             : 
      86             : }  // namespace google_breakpad