int sigaction(int sig, const struct sigaction* act, struct sigaction* old);
Sets the signal handler for sig to act, and stores the old signal handler information in old if not NULL. The sa_handler field in act can be SIG_DFL for the default handler, or SIG_IGN to ignore the signal.
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Setting a handler other than SIG_DFL or SIG_IGN is not yet supported on 64-bit platforms. |