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.TH "AUPARSE_ADD_CALLBACK" "3" "May 2007" "Red Hat" "Linux Audit API"
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auparse_add_callback \- add a callback handler for notifications
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.B #include <auparse.h>
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auparse_add_callback(auparse_state_t *au, auparse_callback_ptr callback,
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void *user_data, user_destroy user_destroy_func);
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auparse_add_callback adds a callback function to the parse state which is invoked to notify the application of parsing events.
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The signature of the callback is:
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auparse_callback(auparse_state_t *au, auparse_cb_event_t cb_event_type,
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When the callback is invoked it is passed:
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a pointer to the parse_state
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enumerated value indicating the reason why the callback was invoked
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pointer to user supplied private data. May be NULL.
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pointer to function called when user_data is destroyed. May be NULL.
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void destroy(void *user_data);
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The destroy() function should be prepared to accept user_data possibly being NULL.
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argument indicates why the callback was invoked. It's possible values are:
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.B AUPARSE_CB_EVENT_READY
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A complete event has been parsed and is ready to be examined. This is logically equivalent to the parse state immediately following
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.I auparse_next_event()
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See auparse_feed(3) for a complete code example.
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Returns the previous callback pointer.
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.BR auparse_flush_feed (3).