io/qfilesystemengine_unix.cpp

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10 -
11 -
12 -
13 -
14 -
15 -
16static inline bool _q_isMacHidden(const char *nativePath) -
17{ -
18 (void)nativePath;; -
19 -
20 return false;
-
21} -
22 -
23 -
24 -
25QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link, QFileSystemMetaData &data) -
26{ -
27 char s[4096 +1]; -
28 int len = readlink(link.nativeFilePath().constData(), s, 4096); -
29 -
30 if (len > 0) {
-
31 QString ret; -
32 if (!data.hasFlags(QFileSystemMetaData::DirectoryType))
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33 fillMetaData(link, data, QFileSystemMetaData::DirectoryType);
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34 if (data.isDirectory() && s[0] != '/') {
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35 QDir parent(link.filePath()); -
36 parent.cdUp(); -
37 ret = parent.path(); -
38 if (!ret.isEmpty() && !ret.endsWith(QLatin1Char('/')))
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39 ret += QLatin1Char('/');
-
40 }
-
41 s[len] = '\0'; -
42 ret += QFile::decodeName(QByteArray(s)); -
43 -
44 -
45 -
46 -
47 if (!ret.startsWith(QLatin1Char('/'))) {
-
48 if (link.filePath().startsWith(QLatin1Char('/'))) {
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49 ret.prepend(link.filePath().left(link.filePath().lastIndexOf(QLatin1Char('/'))) -
50 + QLatin1Char('/')); -
51 } else {
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52 ret.prepend(QDir::currentPath() + QLatin1Char('/')); -
53 }
-
54 } -
55 ret = QDir::cleanPath(ret); -
56 if (ret.size() > 1 && ret.endsWith(QLatin1Char('/')))
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57 ret.chop(1);
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58 return QFileSystemEntry(ret);
-
59 } -
60 return QFileSystemEntry();
-
61} -
62 -
63 -
64QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data) -
65{ -
66 if (entry.isEmpty() || entry.isRoot())
partially evaluated: entry.isEmpty()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2288
evaluated: entry.isRoot()
TRUEFALSE
yes
Evaluation Count:68
yes
Evaluation Count:2220
0-2288
67 return entry;
executed: return entry;
Execution Count:68
68
68 -
69 -
70 -
71 -
72 -
73 -
74 char *ret = 0; -
75 ret = realpath(entry.nativeFilePath().constData(), (char*)0); -
76 if (ret) {
evaluated: ret
TRUEFALSE
yes
Evaluation Count:2207
yes
Evaluation Count:13
13-2207
77 data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute; -
78 data.entryFlags |= QFileSystemMetaData::ExistsAttribute; -
79 QString canonicalPath = QDir::cleanPath(QString::fromLocal8Bit(ret)); -
80 free(ret); -
81 return QFileSystemEntry(canonicalPath);
executed: return QFileSystemEntry(canonicalPath);
Execution Count:2207
2207
82 } else if ((*__errno_location ()) == 2) {
partially evaluated: (*__errno_location ()) == 2
TRUEFALSE
yes
Evaluation Count:13
no
Evaluation Count:0
0-13
83 data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute; -
84 data.entryFlags &= ~(QFileSystemMetaData::ExistsAttribute); -
85 return QFileSystemEntry();
executed: return QFileSystemEntry();
Execution Count:13
13
86 } -
87 return entry;
never executed: return entry;
0
88 -
89} -
90 -
91 -
92QFileSystemEntry QFileSystemEngine::absoluteName(const QFileSystemEntry &entry) -
93{ -
94 if (entry.isAbsolute() && entry.isClean())
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95 return entry;
-
96 -
97 QByteArray orig = entry.nativeFilePath(); -
98 QByteArray result; -
99 if (orig.isEmpty() || !orig.startsWith('/')) {
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100 QFileSystemEntry cur(currentPath()); -
101 result = cur.nativeFilePath(); -
102 }
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103 if (!orig.isEmpty() && !(orig.length() == 1 && orig[0] == '.')) {
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104 if (!result.isEmpty() && !result.endsWith('/'))
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105 result.append('/');
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106 result.append(orig); -
107 }
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108 -
109 if (result.length() == 1 && result[0] == '/')
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110 return QFileSystemEntry(result, QFileSystemEntry::FromNativePath());
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111 const bool isDir = result.endsWith('/'); -
112 -
113 -
114 -
115 -
116 -
117 QFileSystemEntry resultingEntry(result, QFileSystemEntry::FromNativePath()); -
118 QString stringVersion = QDir::cleanPath(resultingEntry.filePath()); -
119 if (isDir)
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120 stringVersion.append(QLatin1Char('/'));
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121 return QFileSystemEntry(stringVersion);
-
122} -
123 -
124 -
125QByteArray QFileSystemEngine::id(const QFileSystemEntry &entry) -
126{ -
127 struct stat statResult; -
128 if (stat(entry.nativeFilePath().constData(), &statResult)) {
never evaluated: stat(entry.nativeFilePath().constData(), &statResult)
0
129 qErrnoWarning("stat() failed for '%s'", entry.nativeFilePath().constData()); -
130 return QByteArray();
never executed: return QByteArray();
0
131 } -
132 QByteArray result = QByteArray::number(quint64(statResult.st_dev), 16); -
133 result += ':'; -
134 result += QByteArray::number(quint64(statResult.st_ino)); -
135 return result;
never executed: return result;
0
136} -
137 -
138 -
139QString QFileSystemEngine::resolveUserName(uint userId) -
140{ -
141 -
142 int size_max = sysconf(_SC_GETPW_R_SIZE_MAX); -
143 if (size_max == -1)
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144 size_max = 1024;
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145 QVarLengthArray<char, 1024> buf(size_max); -
146 -
147 -
148 struct passwd *pw = 0; -
149 -
150 -
151 struct passwd entry; -
152 getpwuid_r(userId, &entry, buf.data(), buf.size(), &pw); -
153 -
154 -
155 -
156 -
157 if (pw)
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158 return QFile::decodeName(QByteArray(pw->pw_name));
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159 return QString();
-
160} -
161 -
162 -
163QString QFileSystemEngine::resolveGroupName(uint groupId) -
164{ -
165 -
166 int size_max = sysconf(_SC_GETPW_R_SIZE_MAX); -
167 if (size_max == -1)
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168 size_max = 1024;
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169 QVarLengthArray<char, 1024> buf(size_max); -
170 -
171 -
172 struct group *gr = 0; -
173 -
174 -
175 size_max = sysconf(_SC_GETGR_R_SIZE_MAX); -
176 if (size_max == -1)
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177 size_max = 1024;
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178 buf.resize(size_max); -
179 struct group entry; -
180 -
181 -
182 for (unsigned size = size_max; size < 256000; size += size)
-
183 { -
184 buf.resize(size); -
185 -
186 if (!getgrgid_r(groupId, &entry, buf.data(), buf.size(), &gr)
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187 || (*__errno_location ()) != 34)
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188 break;
-
189 }
-
190 -
191 -
192 -
193 -
194 if (gr)
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195 return QFile::decodeName(QByteArray(gr->gr_name));
-
196 return QString();
-
197} -
198bool QFileSystemEngine::fillMetaData(const QFileSystemEntry &entry, QFileSystemMetaData &data, -
199 QFileSystemMetaData::MetaDataFlags what) -
200{ -
201 if (what & QFileSystemMetaData::PosixStatFlags)
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202 what |= QFileSystemMetaData::PosixStatFlags;
-
203 -
204 if (what & QFileSystemMetaData::ExistsAttribute) {
-
205 -
206 what |= QFileSystemMetaData::PosixStatFlags; -
207 }
-
208 -
209 data.entryFlags &= ~what; -
210 -
211 const char * nativeFilePath; -
212 int nativeFilePathLength; -
213 { -
214 const QByteArray &path = entry.nativeFilePath(); -
215 nativeFilePath = path.constData(); -
216 nativeFilePathLength = path.size(); -
217 (void)nativeFilePathLength;; -
218 } -
219 -
220 bool entryExists = true; -
221 -
222 struct stat64 statBuffer; -
223 bool statBufferValid = false; -
224 if (what & QFileSystemMetaData::LinkType) {
-
225 if (::lstat64(nativeFilePath, &statBuffer) == 0) {
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226 if (((((statBuffer.st_mode)) & 0170000) == (0120000))) {
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227 data.entryFlags |= QFileSystemMetaData::LinkType; -
228 } else {
-
229 statBufferValid = true; -
230 data.entryFlags &= ~QFileSystemMetaData::PosixStatFlags; -
231 }
-
232 } else { -
233 entryExists = false; -
234 }
-
235 -
236 data.knownFlagsMask |= QFileSystemMetaData::LinkType; -
237 }
-
238 -
239 if (statBufferValid || (what & QFileSystemMetaData::PosixStatFlags)) {
-
240 if (entryExists && !statBufferValid)
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241 statBufferValid = (::stat64(nativeFilePath, &statBuffer) == 0);
-
242 -
243 if (statBufferValid)
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244 data.fillFromStatBuf(statBuffer);
-
245 else { -
246 entryExists = false; -
247 data.creationTime_ = 0; -
248 data.modificationTime_ = 0; -
249 data.accessTime_ = 0; -
250 data.size_ = 0; -
251 data.userId_ = (uint) -2; -
252 data.groupId_ = (uint) -2; -
253 }
-
254 -
255 -
256 data.knownFlagsMask |= QFileSystemMetaData::PosixStatFlags -
257 | QFileSystemMetaData::ExistsAttribute; -
258 }
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259 if (what & QFileSystemMetaData::UserPermissions) {
-
260 -
261 -
262 if (entryExists) {
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263 if (what & QFileSystemMetaData::UserReadPermission) {
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264 if (::access(nativeFilePath, 4) == 0)
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265 data.entryFlags |= QFileSystemMetaData::UserReadPermission;
-
266 }
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267 if (what & QFileSystemMetaData::UserWritePermission) {
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268 if (::access(nativeFilePath, 2) == 0)
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269 data.entryFlags |= QFileSystemMetaData::UserWritePermission;
-
270 }
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271 if (what & QFileSystemMetaData::UserExecutePermission) {
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272 if (::access(nativeFilePath, 1) == 0)
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273 data.entryFlags |= QFileSystemMetaData::UserExecutePermission;
-
274 }
-
275 }
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276 data.knownFlagsMask |= (what & QFileSystemMetaData::UserPermissions); -
277 }
-
278 -
279 if (what & QFileSystemMetaData::HiddenAttribute
-
280 && !data.isHidden()) {
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281 QString fileName = entry.fileName(); -
282 if ((fileName.size() > 0 && fileName.at(0) == QLatin1Char('.'))
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283 || (entryExists && _q_isMacHidden(nativeFilePath)))
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284 data.entryFlags |= QFileSystemMetaData::HiddenAttribute;
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285 data.knownFlagsMask |= QFileSystemMetaData::HiddenAttribute; -
286 }
-
287 if (!entryExists) {
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288 data.clearFlags(what); -
289 return false;
-
290 } -
291 return data.hasFlags(what);
-
292} -
293 -
294 -
295bool QFileSystemEngine::createDirectory(const QFileSystemEntry &entry, bool createParents) -
296{ -
297 QString dirName = entry.filePath(); -
298 if (createParents) {
-
299 dirName = QDir::cleanPath(dirName); -
300 for (int oldslash = -1, slash=0; slash != -1; oldslash = slash) {
-
301 slash = dirName.indexOf(QDir::separator(), oldslash+1); -
302 if (slash == -1) {
-
303 if (oldslash == dirName.length())
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304 break;
-
305 slash = dirName.length(); -
306 }
-
307 if (slash) {
-
308 const QByteArray chunk = QFile::encodeName(dirName.left(slash)); -
309 struct stat64 st; -
310 if (::stat64(chunk.constData(), &st) != -1) {
-
311 if ((st.st_mode & 0170000) != 0040000)
-
312 return false;
-
313 } else if (::mkdir(chunk.constData(), 0777) != 0) {
-
314 return false;
-
315 } -
316 } -
317 }
-
318 return true;
-
319 } -
320 -
321 -
322 -
323 -
324 return (::mkdir(QFile::encodeName(dirName).constData(), 0777) == 0);
-
325} -
326 -
327 -
328bool QFileSystemEngine::removeDirectory(const QFileSystemEntry &entry, bool removeEmptyParents) -
329{ -
330 if (removeEmptyParents) {
-
331 QString dirName = QDir::cleanPath(entry.filePath()); -
332 for (int oldslash = 0, slash=dirName.length(); slash > 0; oldslash = slash) {
-
333 const QByteArray chunk = QFile::encodeName(dirName.left(slash)); -
334 struct stat64 st; -
335 if (::stat64(chunk.constData(), &st) != -1) {
-
336 if ((st.st_mode & 0170000) != 0040000)
-
337 return false;
-
338 if (::rmdir(chunk.constData()) != 0)
-
339 return oldslash != 0;
-
340 } else {
-
341 return false;
-
342 } -
343 slash = dirName.lastIndexOf(QDir::separator(), oldslash-1); -
344 }
-
345 return true;
-
346 } -
347 return rmdir(QFile::encodeName(entry.filePath()).constData()) == 0;
-
348} -
349 -
350 -
351bool QFileSystemEngine::createLink(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error) -
352{ -
353 if (::symlink(source.nativeFilePath().constData(), target.nativeFilePath().constData()) == 0)
-
354 return true;
-
355 error = QSystemError((*__errno_location ()), QSystemError::StandardLibraryError); -
356 return false;
-
357} -
358 -
359 -
360bool QFileSystemEngine::copyFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error) -
361{ -
362 (void)source;; -
363 (void)target;; -
364 error = QSystemError(38, QSystemError::StandardLibraryError); -
365 return false;
-
366} -
367 -
368 -
369bool QFileSystemEngine::renameFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error) -
370{ -
371 if (::rename(source.nativeFilePath().constData(), target.nativeFilePath().constData()) == 0)
-
372 return true;
-
373 error = QSystemError((*__errno_location ()), QSystemError::StandardLibraryError); -
374 return false;
-
375} -
376 -
377 -
378bool QFileSystemEngine::removeFile(const QFileSystemEntry &entry, QSystemError &error) -
379{ -
380 if (unlink(entry.nativeFilePath().constData()) == 0)
-
381 return true;
-
382 error = QSystemError((*__errno_location ()), QSystemError::StandardLibraryError); -
383 return false;
-
384 -
385} -
386 -
387 -
388bool QFileSystemEngine::setPermissions(const QFileSystemEntry &entry, QFile::Permissions permissions, QSystemError &error, QFileSystemMetaData *data) -
389{ -
390 mode_t mode = 0; -
391 if (permissions & QFile::ReadOwner)
-
392 mode |= 0400;
-
393 if (permissions & QFile::WriteOwner)
-
394 mode |= 0200;
-
395 if (permissions & QFile::ExeOwner)
-
396 mode |= 0100;
-
397 if (permissions & QFile::ReadUser)
-
398 mode |= 0400;
-
399 if (permissions & QFile::WriteUser)
-
400 mode |= 0200;
-
401 if (permissions & QFile::ExeUser)
-
402 mode |= 0100;
-
403 if (permissions & QFile::ReadGroup)
-
404 mode |= (0400 >> 3);
-
405 if (permissions & QFile::WriteGroup)
-
406 mode |= (0200 >> 3);
-
407 if (permissions & QFile::ExeGroup)
-
408 mode |= (0100 >> 3);
-
409 if (permissions & QFile::ReadOther)
-
410 mode |= ((0400 >> 3) >> 3);
-
411 if (permissions & QFile::WriteOther)
-
412 mode |= ((0200 >> 3) >> 3);
-
413 if (permissions & QFile::ExeOther)
-
414 mode |= ((0100 >> 3) >> 3);
-
415 -
416 bool success = ::chmod(entry.nativeFilePath().constData(), mode) == 0; -
417 if (success && data) {
-
418 data->entryFlags &= ~QFileSystemMetaData::Permissions; -
419 data->entryFlags |= QFileSystemMetaData::MetaDataFlag(uint(permissions)); -
420 data->knownFlagsMask |= QFileSystemMetaData::Permissions; -
421 }
-
422 if (!success)
-
423 error = QSystemError((*__errno_location ()), QSystemError::StandardLibraryError);
-
424 return success;
-
425} -
426 -
427QString QFileSystemEngine::homePath() -
428{ -
429 QString home = QFile::decodeName(qgetenv("HOME")); -
430 if (home.isNullisEmpty())
evaluated: home.isEmpty()
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:793
1-793
431 home = rootPath();
executed: home = rootPath();
Execution Count:1
1
432 return QDir::cleanPath(home);
executed: return QDir::cleanPath(home);
Execution Count:794
794
433} -
434 -
435QString QFileSystemEngine::rootPath() -
436{ -
437 return QLatin1String("/");
-
438} -
439 -
440QString QFileSystemEngine::tempPath() -
441{ -
442 QString temp = QFile::decodeName(qgetenv("TMPDIR")); -
443 if (temp.isEmpty())
-
444 temp = QLatin1String("/tmp/");
-
445 return QDir::cleanPath(temp);
-
446 -
447} -
448 -
449bool QFileSystemEngine::setCurrentPath(const QFileSystemEntry &path) -
450{ -
451 int r; -
452 r = ::chdir(path.nativeFilePath().constData()); -
453 return r >= 0;
-
454} -
455 -
456QFileSystemEntry QFileSystemEngine::currentPath() -
457{ -
458 QFileSystemEntry result; -
459 struct stat64 st; -
460 if (::stat64(".", &st) == 0) {
-
461 -
462 -
463 -
464 -
465 -
466 -
467 -
468 char currentName[4096 +1]; -
469 if (::getcwd(currentName, 4096))
-
470 result = QFileSystemEntry(QByteArray(currentName), QFileSystemEntry::FromNativePath());
-
471 -
472 -
473 -
474 -
475 -
476 } else {
-
477 -
478 -
479 -
480 }
-
481 return result;
-
482} -
483 -
484 -
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