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Side by Side Diff: snapshot/minidump/minidump_string_reader.cc

Issue 932153003: Add ProcessSnapshotMinidump, the beginning of the minidump variant of the Snapshot family (Closed) Base URL: https://chromium.googlesource.com/crashpad/crashpad@master
Patch Set: Created 5 years, 10 months ago
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1 // Copyright 2015 The Crashpad Authors. All rights reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "snapshot/minidump/minidump_string_reader.h"
16
17 #include "base/logging.h"
18 #include "minidump/minidump_extensions.h"
19
20 namespace crashpad {
21 namespace internal {
22
23 bool ReadMinidumpUTF8String(FileReaderInterface* file_reader,
24 RVA rva,
25 std::string* string) {
26 if (rva == 0) {
27 string->clear();
28 return true;
29 }
30
31 FileOffset original_offset = file_reader->SeekGet();
32 if (original_offset < 0) {
33 return false;
34 }
35
36 if (!file_reader->SeekSet(rva)) {
37 return false;
38 }
39
40 MinidumpUTF8String string_base;
41 if (!file_reader->ReadExactly(&string_base, sizeof(string_base))) {
42 return false;
43 }
44
45 std::string local_string(string_base.Length, '\0');
46 if (!file_reader->ReadExactly(&local_string[0], string_base.Length)) {
47 return false;
48 }
49
50 if (!file_reader->SeekSet(original_offset)) {
51 return false;
52 }
53
54 string->swap(local_string);
55 return true;
56 }
57
58 } // namespace internal
59 } // namespace crashpad
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