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/11/bin/dd/misc.c 339163 2018-10-03 17:20:30Z kevans $");
41
42#include <sys/types.h>
43
44#include <err.h>
45#include <errno.h>
46#include <inttypes.h>
47#include <libutil.h>
48#include <signal.h>
49#include <stdio.h>
50#include <stdlib.h>
51#include <string.h>
52#include <time.h>
53#include <unistd.h>
54
55#include "dd.h"
56#include "extern.h"
57
58double
59secs_elapsed(void)
60{
61	struct timespec end, ts_res;
62	double secs, res;
63
64	if (clock_gettime(CLOCK_MONOTONIC, &end))
65		err(1, "clock_gettime");
66	if (clock_getres(CLOCK_MONOTONIC, &ts_res))
67		err(1, "clock_getres");
68	secs = (end.tv_sec - st.start.tv_sec) + \
69	       (end.tv_nsec - st.start.tv_nsec) * 1e-9;
70	res = ts_res.tv_sec + ts_res.tv_nsec * 1e-9;
71	if (secs < res)
72		secs = res;
73
74	return (secs);
75}
76
77void
78summary(void)
79{
80	double secs;
81
82	if (ddflags & C_NOINFO)
83		return;
84
85	if (ddflags & C_PROGRESS)
86		fprintf(stderr, "\n");
87
88	secs = secs_elapsed();
89
90	(void)fprintf(stderr,
91	    "%ju+%ju records in\n%ju+%ju records out\n",
92	    st.in_full, st.in_part, st.out_full, st.out_part);
93	if (st.swab)
94		(void)fprintf(stderr, "%ju odd length swab %s\n",
95		     st.swab, (st.swab == 1) ? "block" : "blocks");
96	if (st.trunc)
97		(void)fprintf(stderr, "%ju truncated %s\n",
98		     st.trunc, (st.trunc == 1) ? "block" : "blocks");
99	if (!(ddflags & C_NOXFER)) {
100		(void)fprintf(stderr,
101		    "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
102		    st.bytes, secs, st.bytes / secs);
103	}
104	need_summary = 0;
105}
106
107void
108progress(void)
109{
110	static int outlen;
111	char si[4 + 1 + 2 + 1];		/* 123 <space> <suffix> NUL */
112	char iec[4 + 1 + 3 + 1];	/* 123 <space> <suffix> NUL */
113	char persec[4 + 1 + 2 + 1];	/* 123 <space> <suffix> NUL */
114	char *buf;
115	double secs;
116
117	secs = secs_elapsed();
118	humanize_number(si, sizeof(si), (int64_t)st.bytes, "B", HN_AUTOSCALE,
119	    HN_DECIMAL | HN_DIVISOR_1000);
120	humanize_number(iec, sizeof(iec), (int64_t)st.bytes, "B", HN_AUTOSCALE,
121	    HN_DECIMAL | HN_IEC_PREFIXES);
122	humanize_number(persec, sizeof(persec), (int64_t)(st.bytes / secs), "B",
123	    HN_AUTOSCALE, HN_DECIMAL | HN_DIVISOR_1000);
124	asprintf(&buf, "  %'ju bytes (%s, %s) transferred %.3fs, %s/s",
125	    (uintmax_t)st.bytes, si, iec, secs, persec);
126	outlen = fprintf(stderr, "%-*s\r", outlen, buf) - 1;
127	fflush(stderr);
128	free(buf);
129	need_progress = 0;
130}
131
132/* ARGSUSED */
133void
134siginfo_handler(int signo __unused)
135{
136
137	need_summary = 1;
138}
139
140/* ARGSUSED */
141void
142sigalarm_handler(int signo __unused)
143{
144
145	need_progress = 1;
146}
147
148/* ARGSUSED */
149void
150terminate(int sig)
151{
152
153	summary();
154	_exit(sig == 0 ? 0 : 1);
155}
156