minor cleanups, no fixes

[unix-history] / usr / src / usr.sbin / update / update.c

/*-
* Copyright (c) 1987, 1990 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1987, 1990 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)update.c    5.1 (Berkeley) %G%";
#endif /* not lint */

#include <sys/time.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>

main()
{
       struct itimerval value;
       void mysync();

       daemon(0, 0);

       (void)signal(SIGALRM, mysync);

       value.it_interval.tv_sec = 30;
       value.it_interval.tv_usec = 0;
       value.it_value = value.it_interval;
       if (setitimer(ITIMER_REAL, &value, NULL)) {
               perror("update: setitimer");
               exit(1);
       }
       for (;;)
               sigpause(sigblock(0L));
       /* NOTREACHED */
}

void
mysync()
{
       (void)sync();
}