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. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the University of
  20  *      California, Berkeley and its contributors.
  21  * 4. Neither the name of the University nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  * @(#)misc.c   8.3 (Berkeley) 4/2/94
  38  * $FreeBSD: src/bin/dd/misc.c,v 1.18.2.1 2001/08/01 01:40:03 obrien Exp $
  39  * $DragonFly: src/bin/dd/misc.c,v 1.5 2004/11/07 20:54:51 eirikn Exp $
  40  */
  41
  42 #include <sys/types.h>
  43 #include <sys/time.h>
  44
  45 #include <errno.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <strings.h>
  49 #include <unistd.h>
  50
  51 #include "dd.h"
  52 #include "extern.h"
  53
  54 void
  55 summary(void)
  56 {
  57         struct timeval tv;
  58         double secs;
  59         char buf[100];
  60
  61         gettimeofday(&tv, (struct timezone *)NULL);
  62         secs = tv.tv_sec + tv.tv_usec * 1e-6 - st.start;
  63         if (secs < 1e-6)
  64                 secs = 1e-6;
  65         /* Use snprintf(3) so that we don't reenter stdio(3). */
  66         snprintf(buf, sizeof(buf),
  67             "%llu+%llu records in\n%llu+%llu records out\n",
  68             st.in_full, st.in_part, st.out_full, st.out_part);
  69         write(STDERR_FILENO, buf, strlen(buf));
  70         if (st.swab) {
  71                 snprintf(buf, sizeof(buf), "%llu odd length swab %s\n",
  72                      st.swab, (st.swab == 1) ? "block" : "blocks");
  73                 write(STDERR_FILENO, buf, strlen(buf));
  74         }
  75         if (st.trunc) {
  76                 snprintf(buf, sizeof(buf), "%llu truncated %s\n",
  77                      st.trunc, (st.trunc == 1) ? "block" : "blocks");
  78                 write(STDERR_FILENO, buf, strlen(buf));
  79         }
  80         snprintf(buf, sizeof(buf),
  81             "%llu bytes transferred in %.6f secs (%.0f bytes/sec)\n",
  82             st.bytes, secs, st.bytes / secs);
  83         write(STDERR_FILENO, buf, strlen(buf));
  84 }
  85
  86 /* ARGSUSED */
  87 void
  88 summaryx(int notused __unused)
  89 {
  90         int save_errno = errno;
  91
  92         summary();
  93         errno = save_errno;
  94 }
  95
  96 /* ARGSUSED */
  97 void
  98 terminate(int sig)
  99 {
 100
 101         summary();
 102         _exit(sig == 0 ? 0 : 1);
 103 }