>>> 	/* Reset to default signal handler, clear mask, raise signal */
>> So if sigaction() succeeds but sigprocmask() fails, we don't
>> raise(sig).  Would it be more useful to raise(sig) regardless of
>> whether sigprocmask() succeeds?
> You're probably right; the code could just be simplified to call the
> sig*() functions and not bother checking the return values (except
> for possibly sigaction()); the function is intended to terminate the
> process.

It is?  I thought it was intended to invoke the default action for the
signal, which may not be to terminate the process (the most plausible
example that comes to mind is SIGTSTP).

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