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- /*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- */
-
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)alarm.c 5.2 (Berkeley) 3/9/86";
- #endif LIBC_SCCS and not lint
-
- /*
- * Backwards compatible alarm.
- */
- #include <sys/time.h>
-
- alarm(secs)
- int secs;
- {
- struct itimerval it, oitv;
- register struct itimerval *itp = ⁢
-
- timerclear(&itp->it_interval);
- itp->it_value.tv_sec = secs;
- itp->it_value.tv_usec = 0;
- if (setitimer(ITIMER_REAL, itp, &oitv) < 0)
- return (-1);
- if (oitv.it_value.tv_usec)
- oitv.it_value.tv_sec++;
- return (oitv.it_value.tv_sec);
- }
-