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iOS: Guard against failure to retrieve device UID

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It should not happen, but if it happens, Qt Creator should not crash.

Task-number: QTCREATORBUG-23460
Change-Id: Id25b53ff24d7e1726efc344dc6318c32073ee75c
Reviewed-by: Vikas Pachdha <vikas.pachdha@qt.io>
This commit is contained in:
Eike Ziller
2020-01-14 15:09:10 +01:00
parent 833d278dce
commit 82d830e5d8
1 changed files with 20 additions and 11 deletions
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23
src/plugins/ios/iosdevice.cpp
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@@ -356,9 +356,14 @@ void deviceConnectedCallback(void *refCon, io_iterator_t iterator)
usbDevice, usbDevice,
CFSTR(kUSBSerialNumberString), CFSTR(kUSBSerialNumberString),
kCFAllocatorDefault, 0)); kCFAllocatorDefault, 0));
if (cfUid) {
QString uid = CFStringRef2QString(cfUid); QString uid = CFStringRef2QString(cfUid);
CFRelease(cfUid); CFRelease(cfUid);
qCDebug(detectLog) << "device UID is" << uid;
IosDeviceManager::instance()->deviceConnected(uid, name); IosDeviceManager::instance()->deviceConnected(uid, name);
} else {
qCDebug(detectLog) << "failed to retrieve device's UID";
}
// Done with this USB device; release the reference added by IOIteratorNext // Done with this USB device; release the reference added by IOIteratorNext
kr = IOObjectRelease(usbDevice); kr = IOObjectRelease(usbDevice);
@@ -385,18 +390,22 @@ void deviceDisconnectedCallback(void *refCon, io_iterator_t iterator)
// Get the USB device's name. // Get the USB device's name.
kr = IORegistryEntryGetName(usbDevice, deviceName); kr = IORegistryEntryGetName(usbDevice, deviceName);
if (KERN_SUCCESS != kr) QString name;
deviceName[0] = '\0'; if (KERN_SUCCESS == kr)
qCDebug(detectLog) << "ios device " << deviceName << " in deviceDisconnectedCallback"; name = QString::fromLocal8Bit(deviceName);
qCDebug(detectLog) << "ios device " << name << " in deviceDisconnectedCallback";
{ CFStringRef cfUid = static_cast<CFStringRef>(
CFStringRef cfUid = static_cast<CFStringRef>(IORegistryEntryCreateCFProperty( IORegistryEntryCreateCFProperty(usbDevice,
usbDevice,
CFSTR(kUSBSerialNumberString), CFSTR(kUSBSerialNumberString),
kCFAllocatorDefault, 0)); kCFAllocatorDefault,
0));
if (cfUid) {
QString uid = CFStringRef2QString(cfUid); QString uid = CFStringRef2QString(cfUid);
CFRelease(cfUid); CFRelease(cfUid);
IosDeviceManager::instance()->deviceDisconnected(uid); IosDeviceManager::instance()->deviceDisconnected(uid);
} else {
qCDebug(detectLog) << "failed to retrieve device's UID";
} }
// Done with this USB device; release the reference added by IOIteratorNext // Done with this USB device; release the reference added by IOIteratorNext