xref: /freebsd/bin/dd/misc.c (revision 864c53ead899f7838cd2e1cca3b485a4a82f5cdc)
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
36 static char sccsid[] = "@(#)misc.c	8.3 (Berkeley) 4/2/94";
37 #endif
38 #endif /* not lint */
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41 
42 #include <sys/types.h>
43 
44 #include <err.h>
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 <time.h>
52 #include <unistd.h>
53 
54 #include "dd.h"
55 #include "extern.h"
56 
57 void
58 summary(void)
59 {
60 	struct timespec end, ts_res;
61 	double secs, res;
62 
63 	if (ddflags & C_NOINFO)
64 		return;
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 	(void)fprintf(stderr,
76 	    "%ju+%ju records in\n%ju+%ju records out\n",
77 	    st.in_full, st.in_part, st.out_full, st.out_part);
78 	if (st.swab)
79 		(void)fprintf(stderr, "%ju odd length swab %s\n",
80 		     st.swab, (st.swab == 1) ? "block" : "blocks");
81 	if (st.trunc)
82 		(void)fprintf(stderr, "%ju truncated %s\n",
83 		     st.trunc, (st.trunc == 1) ? "block" : "blocks");
84 	if (!(ddflags & C_NOXFER)) {
85 		(void)fprintf(stderr,
86 		    "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
87 		    st.bytes, secs, st.bytes / secs);
88 	}
89 	need_summary = 0;
90 }
91 
92 /* ARGSUSED */
93 void
94 siginfo_handler(int signo __unused)
95 {
96 
97 	need_summary = 1;
98 }
99 
100 /* ARGSUSED */
101 void
102 terminate(int sig)
103 {
104 
105 	summary();
106 	_exit(sig == 0 ? 0 : 1);
107 }
108