diff options
Diffstat (limited to 'ashmemd_client.cpp')
| -rw-r--r-- | ashmemd_client.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ashmemd_client.cpp b/ashmemd_client.cpp index 3380209..04227ba 100644 --- a/ashmemd_client.cpp +++ b/ashmemd_client.cpp @@ -28,6 +28,11 @@ namespace android { namespace ashmemd { sp<IAshmemDeviceService> getAshmemService() { + // Calls to defaultServiceManager() crash the process if it doesn't have appropriate + // binder permissions. Check these permissions proactively. + if (access("/dev/binder", R_OK | W_OK) != 0) { + return nullptr; + } sp<IServiceManager> sm = android::defaultServiceManager(); sp<IBinder> binder = sm->checkService(String16("ashmem_device_service")); return interface_cast<IAshmemDeviceService>(binder); |