diff options
Diffstat (limited to 'src/corelib/global/qglobal.cpp')
| -rw-r--r-- | src/corelib/global/qglobal.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp index ac2e85c51e..5ad82c259d 100644 --- a/src/corelib/global/qglobal.cpp +++ b/src/corelib/global/qglobal.cpp @@ -3077,7 +3077,8 @@ QByteArray QSysInfo::machineUniqueId() { #if defined(Q_OS_DARWIN) && __has_include(<IOKit/IOKitLib.h>) char uuid[UuidStringLen + 1]; - io_service_t service = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice")); + static const mach_port_t defaultPort = 0; // Effectively kIOMasterPortDefault/kIOMainPortDefault + io_service_t service = IOServiceGetMatchingService(defaultPort, IOServiceMatching("IOPlatformExpertDevice")); QCFString stringRef = (CFStringRef)IORegistryEntryCreateCFProperty(service, CFSTR(kIOPlatformUUIDKey), kCFAllocatorDefault, 0); CFStringGetCString(stringRef, uuid, sizeof(uuid), kCFStringEncodingMacRoman); return QByteArray(uuid); @@ -3722,6 +3723,15 @@ bool qEnvironmentVariableIsSet(const char *varName) noexcept */ bool qputenv(const char *varName, const QByteArray& value) { + // protect against non-NUL-terminated QByteArrays: + #define IS_RAW_DATA(d) ((d)->offset != sizeof(QByteArrayData)) // copied from qbytearray.cpp + if (IS_RAW_DATA(const_cast<QByteArray&>(value).data_ptr())) { + QByteArray copy(value); + copy.detach(); // ensures NUL termination + return qputenv(varName, copy); + } + #undef IS_RAW_DATA + const auto locker = qt_scoped_lock(environmentMutex); #if defined(Q_CC_MSVC) return _putenv_s(varName, value.constData()) == 0; |