# 2.11BSD#431 - /usr/src/usr.sbin/update/update.c

##### Functions

    main              X
    mysync            X

       1: /*-
       2:  * Copyright (c) 1987, 1990, 1993
       3:  *	The Regents of the University of California.  All rights reserved.
       4:  *
       5:  * Redistribution and use in source and binary forms, with or without
       6:  * modification, are permitted provided that the following conditions
       7:  * are met:
       8:  * 1. Redistributions of source code must retain the above copyright
       9:  *    notice, this list of conditions and the following disclaimer.
      10:  * 2. Redistributions in binary form must reproduce the above copyright
      11:  *    notice, this list of conditions and the following disclaimer in the
      12:  *    documentation and/or other materials provided with the distribution.
      13:  * 3. All advertising materials mentioning features or use of this software
      14:  *    must display the following acknowledgement:
      15:  *	This product includes software developed by the University of
      16:  *	California, Berkeley and its contributors.
      17:  * 4. Neither the name of the University nor the names of its contributors
      18:  *    may be used to endorse or promote products derived from this software
      19:  *    without specific prior written permission.
      20:  *
      21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31:  * SUCH DAMAGE.
      32:  */
      33:
      34: #if !defined(lint) && defined(DOSCCS)
      35: static char copyright[] =
      36: "@(#) Copyright (c) 1987, 1990, 1993\n\
      37: 	The Regents of the University of California.  All rights reserved.\n";
      38:
      39: static char sccsid[] = "@(#)update.c	8.1.1 (2.11BSD) 1999/10/24";
      40: #endif
      41:
      42: #include <sys/time.h>
      43: #include <signal.h>
      44: #include <stdio.h>
      45:
      46: main()
      47: {
      48:     struct itimerval value;
      49:     sigset_t set;
      50:     void mysync();
      51:
      52:     daemon(0, 0);
      53:
      54:     (void)signal(SIGALRM, mysync);
      55:
      56:     value.it_interval.tv_sec = 30;
      57:     value.it_interval.tv_usec = 0;
      58:     value.it_value = value.it_interval;
      59:     if (setitimer(ITIMER_REAL, &value, NULL)) {
      60:         perror("update: setitimer");
      61:         exit(1);
      62:     }
      63:
      64:     (void)sigemptyset(&set);
      65:     for (;;)
      66:         sigsuspend(&set);
      67:     /* NOTREACHED */
      68: }
      69:
      70: void
      71: mysync()
      72: {
      73:     (void)sync();
      74: }

#### Defined functions

main defined in line 46; never used
mysync defined in line 70; used 2 times

- in line 50-54(2)

#### Defined variables

copyright defined in line 35; never used
sccsid defined in line 39; never used

Last modified: 1999-10-24 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 1044 |