fix: ios sockets segfault on connect timeout #3760
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Untested.
I believe this fixes a segfault that occurs if an iOS socket times out on connection.
The problem is that on timeout, it "disconnects" which sets the inputStream and outputStream to null, but on the thread that calls connect(), it is blocking on the
[inputStream open]call until this disconnect happens. The disconnect removes the logjam, so that it proceeds to the next line, where it tries to call[outputStream]open, but by this timeoutputStreamwas set to nil by the disconnect.This fix just guards against calling methods on a nil reference.