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This page displays the COHERENT manpage for sigignore() [Tell the system to ignore a signal].
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sigignore() -- System Call (libc) Tell the system to ignore a signal #include <signal.h> int sigignore (sigtype) int sigtype; sigignore() is a member of the sigset() family of signal-handling system calls. It is equivalent to the system call sigset(sigtype, SIG_IGN); This, in effect, tells the system to ignore all signals of type sigtype. See the Lexicon entry for signal() for a list of recognized signals. Note that signal SIGKILL cannot be ignored. sigignore() returns zero if all went well. If something went wrong, it returns -1 and sets errno to an appropriate value. See Also libc, sighold(), signal(), sigpause(), sigrelse(), sigset() Notes For more information on the sigset() family of signal-handling system calls, see the Lexicon entry for sigset().