1 // Copyright 2012 Google LLC
2 //
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions are
5 // met:
6 //
7 // * Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above
10 // copyright notice, this list of conditions and the following disclaimer
11 // in the documentation and/or other materials provided with the
12 // distribution.
13 // * Neither the name of Google LLC nor the names of its
14 // contributors may be used to endorse or promote products derived from
15 // this software without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 #ifdef HAVE_CONFIG_H
30 #include <config.h> // Must come first
31 #endif
32
33 #include <stdio.h>
34
35 #include "client/linux/handler/minidump_descriptor.h"
36
37 #include "common/linux/guid_creator.h"
38
39 namespace google_breakpad {
40
41 //static
42 const MinidumpDescriptor::MicrodumpOnConsole
43 MinidumpDescriptor::kMicrodumpOnConsole = {};
44
MinidumpDescriptor(const MinidumpDescriptor & descriptor)45 MinidumpDescriptor::MinidumpDescriptor(const MinidumpDescriptor& descriptor)
46 : mode_(descriptor.mode_),
47 fd_(descriptor.fd_),
48 directory_(descriptor.directory_),
49 c_path_(NULL),
50 size_limit_(descriptor.size_limit_),
51 address_within_principal_mapping_(
52 descriptor.address_within_principal_mapping_),
53 skip_dump_if_principal_mapping_not_referenced_(
54 descriptor.skip_dump_if_principal_mapping_not_referenced_),
55 sanitize_stacks_(descriptor.sanitize_stacks_),
56 microdump_extra_info_(descriptor.microdump_extra_info_) {
57 // The copy constructor is not allowed to be called on a MinidumpDescriptor
58 // with a valid path_, as getting its c_path_ would require the heap which
59 // can cause problems in compromised environments.
60 assert(descriptor.path_.empty());
61 }
62
operator =(const MinidumpDescriptor & descriptor)63 MinidumpDescriptor& MinidumpDescriptor::operator=(
64 const MinidumpDescriptor& descriptor) {
65 assert(descriptor.path_.empty());
66
67 mode_ = descriptor.mode_;
68 fd_ = descriptor.fd_;
69 directory_ = descriptor.directory_;
70 path_.clear();
71 if (c_path_) {
72 // This descriptor already had a path set, so generate a new one.
73 c_path_ = NULL;
74 UpdatePath();
75 }
76 size_limit_ = descriptor.size_limit_;
77 address_within_principal_mapping_ =
78 descriptor.address_within_principal_mapping_;
79 skip_dump_if_principal_mapping_not_referenced_ =
80 descriptor.skip_dump_if_principal_mapping_not_referenced_;
81 sanitize_stacks_ = descriptor.sanitize_stacks_;
82 microdump_extra_info_ = descriptor.microdump_extra_info_;
83 return *this;
84 }
85
UpdatePath()86 void MinidumpDescriptor::UpdatePath() {
87 assert(mode_ == kWriteMinidumpToFile && !directory_.empty());
88
89 GUID guid;
90 char guid_str[kGUIDStringLength + 1];
91 if (!CreateGUID(&guid) || !GUIDToString(&guid, guid_str, sizeof(guid_str))) {
92 assert(false);
93 }
94
95 path_.clear();
96 path_ = directory_ + "/" + guid_str + ".dmp";
97 c_path_ = path_.c_str();
98 }
99
100 } // namespace google_breakpad
101