diff options
Diffstat (limited to 'src/corelib/io/qstorageinfo_unix.cpp')
| -rw-r--r-- | src/corelib/io/qstorageinfo_unix.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/corelib/io/qstorageinfo_unix.cpp b/src/corelib/io/qstorageinfo_unix.cpp index 37b8a60c37..698c4ddf41 100644 --- a/src/corelib/io/qstorageinfo_unix.cpp +++ b/src/corelib/io/qstorageinfo_unix.cpp @@ -60,6 +60,7 @@ #elif defined(Q_OS_LINUX) || defined(Q_OS_HURD) # include <mntent.h> # include <sys/statvfs.h> +# include <sys/sysmacros.h> #elif defined(Q_OS_SOLARIS) # include <sys/mnttab.h> # include <sys/statvfs.h> @@ -152,7 +153,7 @@ private: //(2) parent ID: the ID of the parent mount (or of self for the top of the mount tree). // int parent_id; //(3) major:minor: the value of st_dev for files on this filesystem (see stat(2)). -// dev_t rdev; + dev_t rdev; //(4) root: the pathname of the directory in the filesystem which forms the root of this mount. char *subvolume; //(5) mount point: the pathname of the mount point relative to the process's root directory. @@ -503,8 +504,7 @@ inline bool QStorageIterator::next() int rdevminor = qstrtoll(ptr + 1, const_cast<const char **>(&ptr), 10, &ok); if (!ptr || !ok) return false; - Q_UNUSED(rdevmajor); - Q_UNUSED(rdevminor); + mnt.rdev = makedev(rdevmajor, rdevminor); if (*ptr != ' ') return false; @@ -566,6 +566,21 @@ inline QByteArray QStorageIterator::fileSystemType() const inline QByteArray QStorageIterator::device() const { + // check that the device exists + if (mnt.mnt_fsname[0] == '/' && access(mnt.mnt_fsname, F_OK) != 0) { + // It doesn't, so let's try to resolve the dev_t from /dev/block. + // Note how strlen("4294967295") == digits10 + 1, so we need to add 1 + // for each number, plus the ':'. + char buf[sizeof("/dev/block/") + 2 * std::numeric_limits<unsigned>::digits10 + 3]; + QByteArray dev(PATH_MAX, Qt::Uninitialized); + char *devdata = dev.data(); + + snprintf(buf, sizeof(buf), "/dev/block/%u:%u", major(mnt.rdev), minor(mnt.rdev)); + if (realpath(buf, devdata)) { + dev.truncate(strlen(devdata)); + return dev; + } + } return QByteArray(mnt.mnt_fsname); } |