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Report the system error on why chmod(2) failed in XDG_RUNTIME_DIR

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This is a very rare occurrence: if the user is the owner of the
directory, the user can chmod(2), and we already checked that the user
is the owner. However, chmod(2) can still fail on read-only fs and on
hardened systems.

Task-number: QTBUG-41735
Change-Id: I8f8bac763bf5a6e575ed59dac55bd265e5b66271
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: David Faure <david.faure@kdab.com>
This commit is contained in:
Thiago Macieira 2014-10-02 11:56:22 -07:00
parent fc2fcacfcc
commit d0ed6dc146
1 changed files with 2 additions and 1 deletions
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3
src/corelib/io/qstandardpaths_unix.cpp
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@ -136,7 +136,8 @@ QString QStandardPaths::writableLocation(StandardLocation type)
const QFile::Permissions wantedPerms = QFile::ReadUser | QFile::WriteUser | QFile::ExeUser const QFile::Permissions wantedPerms = QFile::ReadUser | QFile::WriteUser | QFile::ExeUser
| QFile::ReadOwner | QFile::WriteOwner | QFile::ExeOwner; | QFile::ReadOwner | QFile::WriteOwner | QFile::ExeOwner;
if (file.permissions() != wantedPerms && !file.setPermissions(wantedPerms)) { if (file.permissions() != wantedPerms && !file.setPermissions(wantedPerms)) {
qWarning("QStandardPaths: wrong permissions on runtime directory %s", qPrintable(xdgRuntimeDir)); qWarning("QStandardPaths: could not set correct permissions on runtime directory %s: %s",
qPrintable(xdgRuntimeDir), qPrintable(file.errorString()));
return QString(); return QString();
} }
return xdgRuntimeDir; return xdgRuntimeDir;