1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1991, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Keith Muller of the University of California, San Diego and Lance
9 * Visser of Convex Computer Corporation.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#ifndef lint
37#if 0
38static char sccsid[] = "@(#)misc.c	8.3 (Berkeley) 4/2/94";
39#endif
40#endif /* not lint */
41#include <sys/cdefs.h>
42__FBSDID("$FreeBSD$");
43
44#include <sys/types.h>
45
46#include <err.h>
47#include <errno.h>
48#include <inttypes.h>
49#include <libutil.h>
50#include <signal.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <string.h>
54#include <time.h>
55#include <unistd.h>
56
57#include "dd.h"
58#include "extern.h"
59
60double
61secs_elapsed(void)
62{
63	struct timespec end, ts_res;
64	double secs, res;
65
66	if (clock_gettime(CLOCK_MONOTONIC, &end))
67		err(1, "clock_gettime");
68	if (clock_getres(CLOCK_MONOTONIC, &ts_res))
69		err(1, "clock_getres");
70	secs = (end.tv_sec - st.start.tv_sec) + \
71	       (end.tv_nsec - st.start.tv_nsec) * 1e-9;
72	res = ts_res.tv_sec + ts_res.tv_nsec * 1e-9;
73	if (secs < res)
74		secs = res;
75
76	return (secs);
77}
78
79void
80summary(void)
81{
82	double secs;
83
84	if (ddflags & C_NOINFO)
85		return;
86
87	if (ddflags & C_PROGRESS)
88		fprintf(stderr, "\n");
89
90	secs = secs_elapsed();
91
92	(void)fprintf(stderr,
93	    "%ju+%ju records in\n%ju+%ju records out\n",
94	    st.in_full, st.in_part, st.out_full, st.out_part);
95	if (st.swab)
96		(void)fprintf(stderr, "%ju odd length swab %s\n",
97		     st.swab, (st.swab == 1) ? "block" : "blocks");
98	if (st.trunc)
99		(void)fprintf(stderr, "%ju truncated %s\n",
100		     st.trunc, (st.trunc == 1) ? "block" : "blocks");
101	if (!(ddflags & C_NOXFER)) {
102		(void)fprintf(stderr,
103		    "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
104		    st.bytes, secs, st.bytes / secs);
105	}
106	need_summary = 0;
107}
108
109void
110progress(void)
111{
112	static int outlen;
113	char si[4 + 1 + 2 + 1];		/* 123 <space> <suffix> NUL */
114	char iec[4 + 1 + 3 + 1];	/* 123 <space> <suffix> NUL */
115	char persec[4 + 1 + 2 + 1];	/* 123 <space> <suffix> NUL */
116	char *buf;
117	double secs;
118
119	secs = secs_elapsed();
120	humanize_number(si, sizeof(si), (int64_t)st.bytes, "B", HN_AUTOSCALE,
121	    HN_DECIMAL | HN_DIVISOR_1000);
122	humanize_number(iec, sizeof(iec), (int64_t)st.bytes, "B", HN_AUTOSCALE,
123	    HN_DECIMAL | HN_IEC_PREFIXES);
124	humanize_number(persec, sizeof(persec), (int64_t)(st.bytes / secs), "B",
125	    HN_AUTOSCALE, HN_DECIMAL | HN_DIVISOR_1000);
126	asprintf(&buf, "  %'ju bytes (%s, %s) transferred %.3fs, %s/s",
127	    (uintmax_t)st.bytes, si, iec, secs, persec);
128	outlen = fprintf(stderr, "%-*s\r", outlen, buf) - 1;
129	fflush(stderr);
130	free(buf);
131	need_progress = 0;
132}
133
134/* ARGSUSED */
135void
136siginfo_handler(int signo __unused)
137{
138
139	need_summary = 1;
140}
141
142/* ARGSUSED */
143void
144sigalarm_handler(int signo __unused)
145{
146
147	need_progress = 1;
148}
149
150/* ARGSUSED */
151void
152terminate(int sig)
153{
154
155	summary();
156	_exit(sig == 0 ? 0 : 1);
157}
158