bin/dd/misc.c

   1 /*-
   2  * Copyright (c) 1991, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Keith Muller of the University of California, San Diego and Lance
   7  * Visser of Convex Computer Corporation.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. 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  * @(#)misc.c   8.3 (Berkeley) 4/2/94
  34  * $FreeBSD: src/bin/dd/misc.c,v 1.18.2.1 2001/08/01 01:40:03 obrien Exp $
  35  * $DragonFly: src/bin/dd/misc.c,v 1.6 2008/01/28 16:08:02 matthias Exp $
  36  */
  37
  38 #include <sys/types.h>
  39 #include <sys/time.h>
  40
  41 #include <errno.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <strings.h>
  45 #include <unistd.h>
  46
  47 #include "dd.h"
  48 #include "extern.h"
  49
  50 void
  51 summary(void)
  52 {
  53         struct timeval tv;
  54         double secs;
  55         char buf[100];
  56
  57         gettimeofday(&tv, (struct timezone *)NULL);
  58         secs = tv.tv_sec + tv.tv_usec * 1e-6 - st.start;
  59         if (secs < 1e-6)
  60                 secs = 1e-6;
  61         /* Use snprintf(3) so that we don't reenter stdio(3). */
  62         snprintf(buf, sizeof(buf),
  63             "%llu+%llu records in\n%llu+%llu records out\n",
  64             st.in_full, st.in_part, st.out_full, st.out_part);
  65         write(STDERR_FILENO, buf, strlen(buf));
  66         if (st.swab) {
  67                 snprintf(buf, sizeof(buf), "%llu odd length swab %s\n",
  68                      st.swab, (st.swab == 1) ? "block" : "blocks");
  69                 write(STDERR_FILENO, buf, strlen(buf));
  70         }
  71         if (st.trunc) {
  72                 snprintf(buf, sizeof(buf), "%llu truncated %s\n",
  73                      st.trunc, (st.trunc == 1) ? "block" : "blocks");
  74                 write(STDERR_FILENO, buf, strlen(buf));
  75         }
  76         snprintf(buf, sizeof(buf),
  77             "%llu bytes transferred in %.6f secs (%.0f bytes/sec)\n",
  78             st.bytes, secs, st.bytes / secs);
  79         write(STDERR_FILENO, buf, strlen(buf));
  80 }
  81
  82 /* ARGSUSED */
  83 void
  84 summaryx(int notused __unused)
  85 {
  86         int save_errno = errno;
  87
  88         summary();
  89         errno = save_errno;
  90 }
  91
  92 /* ARGSUSED */
  93 void
  94 terminate(int sig)
  95 {
  96
  97         summary();
  98         _exit(sig == 0 ? 0 : 1);
  99 }