/*
 * Listing 13.8
 * mask_log.c - demonstrate openlog() and family
 */
#include <syslog.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

int main(void)
{
	int ret;

	openlog("mask_log", LOG_PID, LOG_USER);
	syslog(LOG_INFO, "This message courtesy of UID #%d\n", getuid());
	syslog(LOG_NOTICE, "Hopefully, you see this\n");

	/* Don't want to see DEBUG and INFO messages */
	ret = setlogmask(LOG_UPTO(LOG_NOTICE));
	syslog(LOG_INFO, "You should not be seeing this\n");
	syslog(LOG_DEBUG, "I hope you don't see this\n");
	syslog(LOG_NOTICE, "This should still appear\n");

	closelog();
	exit(EXIT_SUCCESS);
}