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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/common/safe_browsing/mach_o_image_reader_mac.h" | 5 #include "chrome/common/safe_browsing/mach_o_image_reader_mac.h" |
6 | 6 |
7 #include <libkern/OSByteOrder.h> | 7 #include <libkern/OSByteOrder.h> |
8 #include <mach-o/fat.h> | 8 #include <mach-o/fat.h> |
9 #include <mach-o/loader.h> | 9 #include <mach-o/loader.h> |
10 | 10 |
11 #include "base/logging.h" | 11 #include "base/logging.h" |
| 12 #include "base/memory/ptr_util.h" |
12 #include "base/numerics/safe_math.h" | 13 #include "base/numerics/safe_math.h" |
13 | 14 |
14 namespace safe_browsing { | 15 namespace safe_browsing { |
15 | 16 |
16 // ByteSlice is a bounds-checking view of an arbitrary byte array. | 17 // ByteSlice is a bounds-checking view of an arbitrary byte array. |
17 class ByteSlice { | 18 class ByteSlice { |
18 public: | 19 public: |
19 // Creates an invalid byte slice. | 20 // Creates an invalid byte slice. |
20 ByteSlice() : ByteSlice(nullptr, 0) {} | 21 ByteSlice() : ByteSlice(nullptr, 0) {} |
21 | 22 |
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126 | 127 |
127 // Cannot refer back to headers of previous arches to cause | 128 // Cannot refer back to headers of previous arches to cause |
128 // recursive processing. | 129 // recursive processing. |
129 if (arch_offset < offset) | 130 if (arch_offset < offset) |
130 return false; | 131 return false; |
131 | 132 |
132 ByteSlice slice = data_->Slice(arch_offset, arch_size); | 133 ByteSlice slice = data_->Slice(arch_offset, arch_size); |
133 if (!slice.IsValid()) | 134 if (!slice.IsValid()) |
134 return false; | 135 return false; |
135 | 136 |
136 fat_images_.push_back(new MachOImageReader()); | 137 fat_images_.push_back(base::MakeUnique<MachOImageReader>()); |
137 if (!fat_images_.back()->Initialize(slice.data(), slice.size())) | 138 if (!fat_images_.back()->Initialize(slice.data(), slice.size())) |
138 return false; | 139 return false; |
139 | 140 |
140 offset += sizeof(*arch); | 141 offset += sizeof(*arch); |
141 } | 142 } |
142 | 143 |
143 return true; | 144 return true; |
144 } | 145 } |
145 | 146 |
146 bool do_swap = *magic == MH_CIGAM || *magic == MH_CIGAM_64; | 147 bool do_swap = *magic == MH_CIGAM || *magic == MH_CIGAM_64; |
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194 return true; | 195 return true; |
195 } | 196 } |
196 | 197 |
197 bool MachOImageReader::IsFat() { | 198 bool MachOImageReader::IsFat() { |
198 return is_fat_; | 199 return is_fat_; |
199 } | 200 } |
200 | 201 |
201 std::vector<MachOImageReader*> MachOImageReader::GetFatImages() { | 202 std::vector<MachOImageReader*> MachOImageReader::GetFatImages() { |
202 DCHECK(is_fat_); | 203 DCHECK(is_fat_); |
203 std::vector<MachOImageReader*> images; | 204 std::vector<MachOImageReader*> images; |
204 for (auto it = fat_images_.begin(); it != fat_images_.end(); ++it) | 205 for (const auto& image : fat_images_) |
205 images.push_back(*it); | 206 images.push_back(image.get()); |
206 return images; | 207 return images; |
207 } | 208 } |
208 | 209 |
209 bool MachOImageReader::Is64Bit() { | 210 bool MachOImageReader::Is64Bit() { |
210 DCHECK(!is_fat_); | 211 DCHECK(!is_fat_); |
211 return is_64_bit_; | 212 return is_64_bit_; |
212 } | 213 } |
213 | 214 |
214 const mach_header* MachOImageReader::GetMachHeader() { | 215 const mach_header* MachOImageReader::GetMachHeader() { |
215 DCHECK(!is_fat_); | 216 DCHECK(!is_fat_); |
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248 if (lc_code_signature == nullptr) | 249 if (lc_code_signature == nullptr) |
249 return false; | 250 return false; |
250 | 251 |
251 info->resize(lc_code_signature->datasize); | 252 info->resize(lc_code_signature->datasize); |
252 return data_->CopyDataAt(lc_code_signature->dataoff, | 253 return data_->CopyDataAt(lc_code_signature->dataoff, |
253 lc_code_signature->datasize, | 254 lc_code_signature->datasize, |
254 &(*info)[0]); | 255 &(*info)[0]); |
255 } | 256 } |
256 | 257 |
257 } // namespace safe_browsing | 258 } // namespace safe_browsing |
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