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
  38 #include <sys/cdefs.h>
  39 #ifndef lint
  40 #if 0
  41 static char sccsid[] = "@(#)misc.c      8.3 (Berkeley) 4/2/94";
  42 #endif
  43 __used static const char rcsid[] =
  44   "$FreeBSD: src/bin/dd/misc.c,v 1.23 2002/02/02 06:24:12 imp Exp $";
  45 #endif /* not lint */
  46
  47 #include <sys/types.h>
  48 #include <sys/time.h>
  49
  50 #include <errno.h>
  51 #include <stdio.h>
  52 #include <stdlib.h>
  53 #include <strings.h>
  54 #include <unistd.h>
  55
  56 #include "dd.h"
  57 #include "extern.h"
  58
  59 void
  60 summary(void)
  61 {
  62         struct timeval tv;
  63         double secs;
  64         char buf[100];
  65
  66         (void)gettimeofday(&tv, (struct timezone *)NULL);
  67         secs = tv.tv_sec + tv.tv_usec * 1e-6 - st.start;
  68         if (secs < 1e-6)
  69                 secs = 1e-6;
  70         /* Use snprintf(3) so that we don't reenter stdio(3). */
  71         (void)snprintf(buf, sizeof(buf),
  72             "%qu+%qu records in\n%qu+%qu records out\n",
  73             st.in_full, st.in_part, st.out_full, st.out_part);
  74         (void)write(STDERR_FILENO, buf, strlen(buf));
  75         if (st.swab) {
  76                 (void)snprintf(buf, sizeof(buf), "%qu odd length swab %s\n",
  77                      st.swab, (st.swab == 1) ? "block" : "blocks");
  78                 (void)write(STDERR_FILENO, buf, strlen(buf));
  79         }
  80         if (st.trunc) {
  81                 (void)snprintf(buf, sizeof(buf), "%qu truncated %s\n",
  82                      st.trunc, (st.trunc == 1) ? "record" : "records");
  83                 (void)write(STDERR_FILENO, buf, strlen(buf));
  84         }
  85         (void)snprintf(buf, sizeof(buf),
  86             "%qu bytes transferred in %.6f secs (%.0f bytes/sec)\n",
  87             st.bytes, secs, st.bytes / secs);
  88         (void)write(STDERR_FILENO, buf, strlen(buf));
  89 }
  90
  91 /* ARGSUSED */
  92 void
  93 summaryx(int notused)
  94 {
  95         int save_errno = errno;
  96
  97         summary();
  98         errno = save_errno;
  99 }
 100
 101 /* ARGSUSED */
 102 void
 103 terminate(int sig)
 104 {
 105
 106         summary();
 107         _exit(sig == 0 ? 0 : 1);
 108 }