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39 
40 #include "qstorageinfo_p.h"
41 
42 #include <QtCore/qfileinfo.h>
43 #include <QtCore/private/qcore_mac_p.h>
44 
45 #include <CoreFoundation/CoreFoundation.h>
46 #include <CoreFoundation/CFURLEnumerator.h>
47 
48 #include <sys/mount.h>
49 
50 #define QT_STATFSBUF struct statfs
51 #define QT_STATFS    ::statfs
52 
53 QT_BEGIN_NAMESPACE
54 
initRootPath()55 void QStorageInfoPrivate::initRootPath()
56 {
57     rootPath = QFileInfo(rootPath).canonicalFilePath();
58 
59     if (rootPath.isEmpty())
60         return;
61 
62     retrieveUrlProperties(true);
63 }
64 
doStat()65 void QStorageInfoPrivate::doStat()
66 {
67     initRootPath();
68 
69     if (rootPath.isEmpty())
70         return;
71 
72     retrieveLabel();
73     retrievePosixInfo();
74     retrieveUrlProperties();
75 }
76 
retrievePosixInfo()77 void QStorageInfoPrivate::retrievePosixInfo()
78 {
79     QT_STATFSBUF statfs_buf;
80     int result = QT_STATFS(QFile::encodeName(rootPath).constData(), &statfs_buf);
81     if (result == 0) {
82         device = QByteArray(statfs_buf.f_mntfromname);
83         readOnly = (statfs_buf.f_flags & MNT_RDONLY) != 0;
84         fileSystemType = QByteArray(statfs_buf.f_fstypename);
85         blockSize = statfs_buf.f_bsize;
86     }
87 }
88 
CFDictionaryGetInt64(CFDictionaryRef dictionary,const void * key)89 static inline qint64 CFDictionaryGetInt64(CFDictionaryRef dictionary, const void *key)
90 {
91     CFNumberRef cfNumber = (CFNumberRef)CFDictionaryGetValue(dictionary, key);
92     if (!cfNumber)
93         return -1;
94     qint64 result;
95     bool ok = CFNumberGetValue(cfNumber, kCFNumberSInt64Type, &result);
96     if (!ok)
97         return -1;
98     return result;
99 }
100 
retrieveUrlProperties(bool initRootPath)101 void QStorageInfoPrivate::retrieveUrlProperties(bool initRootPath)
102 {
103     static const void *rootPathKeys[] = { kCFURLVolumeURLKey };
104     static const void *propertyKeys[] = {
105         // kCFURLVolumeNameKey, // 10.7
106         // kCFURLVolumeLocalizedNameKey, // 10.7
107         kCFURLVolumeTotalCapacityKey,
108         kCFURLVolumeAvailableCapacityKey,
109         // kCFURLVolumeIsReadOnlyKey // 10.7
110     };
111     size_t size = (initRootPath ? sizeof(rootPathKeys) : sizeof(propertyKeys)) / sizeof(void*);
112     QCFType<CFArrayRef> keys = CFArrayCreate(kCFAllocatorDefault,
113                                              initRootPath ? rootPathKeys : propertyKeys,
114                                              size,
115                                              nullptr);
116 
117     if (!keys)
118         return;
119 
120     const QCFString cfPath = rootPath;
121     if (initRootPath)
122         rootPath.clear();
123 
124     QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
125                                                           cfPath,
126                                                           kCFURLPOSIXPathStyle,
127                                                           true);
128     if (!url)
129         return;
130 
131     CFErrorRef error;
132     QCFType<CFDictionaryRef> map = CFURLCopyResourcePropertiesForKeys(url, keys, &error);
133 
134     if (!map)
135         return;
136 
137     if (initRootPath) {
138         const CFURLRef rootUrl = (CFURLRef)CFDictionaryGetValue(map, kCFURLVolumeURLKey);
139         if (!rootUrl)
140             return;
141 
142         rootPath = QCFString(CFURLCopyFileSystemPath(rootUrl, kCFURLPOSIXPathStyle));
143         valid = true;
144         ready = true;
145 
146         return;
147     }
148 
149     bytesTotal = CFDictionaryGetInt64(map, kCFURLVolumeTotalCapacityKey);
150     bytesAvailable = CFDictionaryGetInt64(map, kCFURLVolumeAvailableCapacityKey);
151     bytesFree = bytesAvailable;
152 }
153 
retrieveLabel()154 void QStorageInfoPrivate::retrieveLabel()
155 {
156     QCFString path = CFStringCreateWithFileSystemRepresentation(0,
157         QFile::encodeName(rootPath).constData());
158     if (!path)
159         return;
160 
161     QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(0, path, kCFURLPOSIXPathStyle, true);
162     if (!url)
163         return;
164 
165     QCFType<CFURLRef> volumeUrl;
166     if (!CFURLCopyResourcePropertyForKey(url, kCFURLVolumeURLKey, &volumeUrl, NULL))
167         return;
168 
169     QCFString volumeName;
170     if (!CFURLCopyResourcePropertyForKey(url, kCFURLNameKey, &volumeName, NULL))
171         return;
172 
173     name = volumeName;
174 }
175 
mountedVolumes()176 QList<QStorageInfo> QStorageInfoPrivate::mountedVolumes()
177 {
178     QList<QStorageInfo> volumes;
179 
180     QCFType<CFURLEnumeratorRef> enumerator;
181     enumerator = CFURLEnumeratorCreateForMountedVolumes(nullptr,
182                                                         kCFURLEnumeratorSkipInvisibles,
183                                                         nullptr);
184 
185     CFURLEnumeratorResult result = kCFURLEnumeratorSuccess;
186     do {
187         CFURLRef url;
188         CFErrorRef error;
189         result = CFURLEnumeratorGetNextURL(enumerator, &url, &error);
190         if (result == kCFURLEnumeratorSuccess) {
191             const QCFString urlString = CFURLCopyFileSystemPath(url, kCFURLPOSIXPathStyle);
192             volumes.append(QStorageInfo(urlString));
193         }
194     } while (result != kCFURLEnumeratorEnd);
195 
196     return volumes;
197 }
198 
root()199 QStorageInfo QStorageInfoPrivate::root()
200 {
201     return QStorageInfo(QStringLiteral("/"));
202 }
203 
204 QT_END_NAMESPACE
205