usr.sbin/accton/accton.c

   1 /*
   2  * Copyright (c) 1988, 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  * @(#) Copyright (c) 1988, 1993 The Regents of the University of California.  All rights reserved.
  34  * @(#)accton.c 8.1 (Berkeley) 6/6/93
  35  * $FreeBSD: src/usr.sbin/accton/accton.c,v 1.5 1999/08/28 01:15:10 peter Exp $
  36  * $DragonFly: src/usr.sbin/accton/accton.c,v 1.7 2004/12/25 14:20:09 swildner Exp $
  37  */
  38
  39 #include <sys/types.h>
  40
  41 #include <err.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <unistd.h>
  45
  46 static void usage(void);
  47
  48 int
  49 main(int argc, char **argv)
  50 {
  51         int ch;
  52
  53         while ((ch = getopt(argc, argv, "")) != -1)
  54                 switch(ch) {
  55                 default:
  56                         usage();
  57                 }
  58         argc -= optind;
  59         argv += optind;
  60
  61         switch(argc) {
  62         case 0:
  63                 if (acct(NULL) < 0)
  64                         err(1, NULL);
  65                 break;
  66         case 1:
  67                 if (acct(*argv) < 0)
  68                         err(1, "%s", *argv);
  69                 break;
  70         default:
  71                 usage();
  72         }
  73         exit(0);
  74 }
  75
  76 static void
  77 usage(void)
  78 {
  79         fprintf(stderr, "usage: accton [file]\n");
  80         exit(1);
  81 }