Fix ADB daemon file descriptor leak
The ADB (Android Debug Bridge) daemon suffers from a file descriptor leak.
When transfering file descriptors, opened by the adbd daemon, to a JDWP
process for debugging through sendmsg, the file descriptor is duplicated
by the kernel and a copy is transfered to the JDWP process.
Adbd neglects to close it's copy of the descriptor after the sendmsg call
which causes a file descriptor leak in the process.
Eventually this causes the daemon to hit its maximum roof of opened file
descriptors thus making it impossible for the process to serve any new
commands from the adb server.
Jdwp_service.c has been modified to close the file descriptor after the
send message call has succeded.
Also, the socket used for transfering the file descriptor is set to blocking
mode before the sendmsg call since the adbd processes needs to know when the
duplication has been completed by the kernel.
The flags are reset to its original state after the sendmsg call.
Change-Id: I76b15460301ac01e432f5ce8678ff58c658c16f2
Signed-off-by: Christian Bejram <christian.bejram@stericsson.com>
1 file changed