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Issue 8418034: Make string_util::WriteInto() DCHECK() that the supplied |length_with_null| > 1, meaning that the... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 9 years ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 "base/base_paths_mac.h" 5 #include "base/base_paths_mac.h"
6 6
7 #include <dlfcn.h> 7 #include <dlfcn.h>
8 #import <Foundation/Foundation.h> 8 #import <Foundation/Foundation.h>
9 #include <mach-o/dyld.h> 9 #include <mach-o/dyld.h>
10 10
11 #include "base/compiler_specific.h" 11 #include "base/compiler_specific.h"
12 #include "base/file_path.h" 12 #include "base/file_path.h"
13 #include "base/file_util.h" 13 #include "base/file_util.h"
14 #include "base/logging.h" 14 #include "base/logging.h"
15 #include "base/mac/foundation_util.h" 15 #include "base/mac/foundation_util.h"
16 #include "base/path_service.h" 16 #include "base/path_service.h"
17 #include "base/string_util.h" 17 #include "base/string_util.h"
18 18
19 namespace { 19 namespace {
20 20
21 bool GetNSExecutablePath(FilePath* path) WARN_UNUSED_RESULT; 21 void GetNSExecutablePath(FilePath* path) {
22
23 bool GetNSExecutablePath(FilePath* path) {
24 DCHECK(path); 22 DCHECK(path);
25 // Executable path can have relative references ("..") depending on 23 // Executable path can have relative references ("..") depending on
26 // how the app was launched. 24 // how the app was launched.
27 uint32_t executable_length = 0; 25 uint32_t executable_length = 0;
28 _NSGetExecutablePath(NULL, &executable_length); 26 _NSGetExecutablePath(NULL, &executable_length);
29 DCHECK_GE(executable_length, 1u); 27 DCHECK_GT(executable_length, 1u);
30 std::string executable_path; 28 std::string executable_path;
31 char* executable_path_c = WriteInto(&executable_path, executable_length); 29 int rv = _NSGetExecutablePath(WriteInto(&executable_path, executable_length),
32 int rv = _NSGetExecutablePath(executable_path_c, &executable_length); 30 &executable_length);
33 DCHECK_EQ(rv, 0); 31 DCHECK_EQ(rv, 0);
34 DCHECK(!executable_path.empty());
35 if ((rv != 0) || (executable_path.empty()))
36 return false;
37 *path = FilePath(executable_path); 32 *path = FilePath(executable_path);
38 return true;
39 } 33 }
40 34
41 // Returns true if the module for |address| is found. |path| will contain 35 // Returns true if the module for |address| is found. |path| will contain
42 // the path to the module. Note that |path| may not be absolute. 36 // the path to the module. Note that |path| may not be absolute.
43 bool GetModulePathForAddress(FilePath* path, 37 bool GetModulePathForAddress(FilePath* path,
44 const void* address) WARN_UNUSED_RESULT; 38 const void* address) WARN_UNUSED_RESULT;
45 39
46 bool GetModulePathForAddress(FilePath* path, const void* address) { 40 bool GetModulePathForAddress(FilePath* path, const void* address) {
47 Dl_info info; 41 Dl_info info;
48 if (dladdr(address, &info) == 0) 42 if (dladdr(address, &info) == 0)
49 return false; 43 return false;
50 *path = FilePath(info.dli_fname); 44 *path = FilePath(info.dli_fname);
51 return true; 45 return true;
52 } 46 }
53 47
54 } // namespace 48 } // namespace
55 49
56 namespace base { 50 namespace base {
57 51
58 bool PathProviderMac(int key, FilePath* result) { 52 bool PathProviderMac(int key, FilePath* result) {
59 switch (key) { 53 switch (key) {
60 case base::FILE_EXE: 54 case base::FILE_EXE:
61 return GetNSExecutablePath(result); 55 GetNSExecutablePath(result);
56 return true;
62 case base::FILE_MODULE: 57 case base::FILE_MODULE:
63 return GetModulePathForAddress(result, 58 return GetModulePathForAddress(result,
64 reinterpret_cast<const void*>(&base::PathProviderMac)); 59 reinterpret_cast<const void*>(&base::PathProviderMac));
65 case base::DIR_CACHE: 60 case base::DIR_CACHE:
66 return base::mac::GetUserDirectory(NSCachesDirectory, result); 61 return base::mac::GetUserDirectory(NSCachesDirectory, result);
67 case base::DIR_APP_DATA: 62 case base::DIR_APP_DATA:
68 return base::mac::GetUserDirectory(NSApplicationSupportDirectory, result); 63 return base::mac::GetUserDirectory(NSApplicationSupportDirectory, result);
69 case base::DIR_SOURCE_ROOT: { 64 case base::DIR_SOURCE_ROOT: {
70 // Go through PathService to catch overrides. 65 // Go through PathService to catch overrides.
71 if (!PathService::Get(base::FILE_EXE, result)) 66 if (!PathService::Get(base::FILE_EXE, result))
(...skipping 12 matching lines...) Expand all
84 *result = result->DirName().DirName(); 79 *result = result->DirName().DirName();
85 } 80 }
86 return true; 81 return true;
87 } 82 }
88 default: 83 default:
89 return false; 84 return false;
90 } 85 }
91 } 86 }
92 87
93 } // namespace base 88 } // namespace base
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