Signal Actions

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Specifying Signal Actions

The simplest way to change the action for a signal is to use the signal function. You can specify a built-in action (such as to ignore the signal), or you can establish a handler.

The GNU library also implements the more versatile sigaction facility. This section describes both facilities and gives suggestions on which to use when.

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• Basic Signal Handling :: The simple signal function.
• Advanced Signal Handling :: The more powerful sigaction function.
• Signal and Sigaction :: How those two functions interact.
• Sigaction Function Example :: An example of using the sigaction function.
• Flags for Sigaction :: Specifying options for signal handling.
• Initial Signal Actions :: How programs inherit signal actions.