misc.c revision 264577 
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 * 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#ifndef lint
35#if 0
36static char sccsid[] = "@(#)misc.c	8.3 (Berkeley) 4/2/94";
37#endif
38#endif /* not lint */
39#include <sys/cdefs.h>
40__FBSDID("$FreeBSD: stable/10/bin/dd/misc.c 264577 2014-04-17 00:31:20Z delphij $");
41
42#include <sys/types.h>
43#include <sys/time.h>
44
45#include <errno.h>
46#include <inttypes.h>
47#include <signal.h>
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51#include <unistd.h>
52
53#include "dd.h"
54#include "extern.h"
55
56void
57summary(void)
58{
59	struct timeval tv;
60	double secs;
61
62	if (ddflags & C_NOINFO)
63		return;
64
65	(void)gettimeofday(&tv, NULL);
66	secs = tv.tv_sec + tv.tv_usec * 1e-6 - st.start;
67	if (secs < 1e-6)
68		secs = 1e-6;
69	(void)fprintf(stderr,
70	    "%ju+%ju records in\n%ju+%ju records out\n",
71	    st.in_full, st.in_part, st.out_full, st.out_part);
72	if (st.swab)
73		(void)fprintf(stderr, "%ju odd length swab %s\n",
74		     st.swab, (st.swab == 1) ? "block" : "blocks");
75	if (st.trunc)
76		(void)fprintf(stderr, "%ju truncated %s\n",
77		     st.trunc, (st.trunc == 1) ? "block" : "blocks");
78	if (!(ddflags & C_NOXFER)) {
79		(void)fprintf(stderr,
80		    "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
81		    st.bytes, secs, st.bytes / secs);
82	}
83	need_summary = 0;
84}
85
86/* ARGSUSED */
87void
88siginfo_handler(int signo __unused)
89{
90
91	need_summary = 1;
92}
93
94/* ARGSUSED */
95void
96terminate(int sig)
97{
98
99	summary();
100	_exit(sig == 0 ? 0 : 1);
101}
102