1 /* $OpenBSD: misc.c,v 1.26 2024/07/12 19:11:25 florian Exp $ */
2 /* $NetBSD: misc.c,v 1.4 1995/03/21 09:04:10 cgd Exp $ */
3
4 /*-
5 * Copyright (c) 1991, 1993, 1994
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Keith Muller of the University of California, San Diego and Lance
10 * Visser of Convex Computer Corporation.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37 #include <sys/types.h>
38 #include <sys/time.h>
39
40 #include <errno.h>
41 #include <stdio.h>
42 #include <time.h>
43 #include <unistd.h>
44
45 #include "dd.h"
46 #include "extern.h"
47
48 /* SIGINFO handler */
49 void
sig_summary(int notused)50 sig_summary(int notused)
51 {
52 int save_errno = errno;
53 struct timespec elapsed, now;
54 unsigned long long bps, msec;
55
56 if (ddflags & C_NOINFO)
57 return;
58
59 clock_gettime(CLOCK_MONOTONIC, &now);
60 timespecsub(&now, &st.start, &elapsed);
61
62 if (elapsed.tv_sec > 600)
63 bps = st.bytes / elapsed.tv_sec;
64 else if (elapsed.tv_sec > 0) {
65 /* will overflow at ~ 30 exabytes / second */
66 msec = elapsed.tv_sec * 1000 + elapsed.tv_nsec / 1000000;
67 if (msec == 0)
68 msec = 1;
69 bps = st.bytes * 1000 / msec;
70 } else if (elapsed.tv_nsec > 0)
71 bps = st.bytes * 1000000000 / elapsed.tv_nsec;
72 else
73 bps = st.bytes;
74
75 /* Be async safe: use dprintf(3). */
76 dprintf(STDERR_FILENO, "%zu+%zu records in\n%zu+%zu records out\n",
77 st.in_full, st.in_part, st.out_full, st.out_part);
78
79 if (st.swab) {
80 dprintf(STDERR_FILENO, "%zu odd length swab %s\n",
81 st.swab, (st.swab == 1) ? "block" : "blocks");
82 }
83 if (st.trunc) {
84 dprintf(STDERR_FILENO, "%zu truncated %s\n",
85 st.trunc, (st.trunc == 1) ? "block" : "blocks");
86 }
87 if (!(ddflags & C_NOXFER)) {
88 dprintf(STDERR_FILENO,
89 "%lld bytes transferred in %lld.%03ld secs "
90 "(%llu bytes/sec)\n", (long long)st.bytes,
91 (long long)elapsed.tv_sec, elapsed.tv_nsec / 1000000, bps);
92 }
93 errno = save_errno;
94 }
95
96 /* SIGINT handler */
97 void
sig_terminate(int signo)98 sig_terminate(int signo)
99 {
100 sig_summary(0);
101 _exit(128 + signo);
102 }
103
104 /* atexit variation to summarize */
105 void
exit_summary(void)106 exit_summary(void)
107 {
108 sig_summary(0);
109 }
110