xref: /freebsd/bin/dd/misc.c (revision 23090366f729c56cab62de74c7a51792357e98a9)
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 #include <sys/time.h>
44 
45 #include <errno.h>
46 #include <inttypes.h>
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <string.h>
50 #include <unistd.h>
51 
52 #include "dd.h"
53 #include "extern.h"
54 
55 void
56 summary(void)
57 {
58 	struct timeval tv;
59 	double secs;
60 	char buf[100];
61 
62 	(void)gettimeofday(&tv, NULL);
63 	secs = tv.tv_sec + tv.tv_usec * 1e-6 - st.start;
64 	if (secs < 1e-6)
65 		secs = 1e-6;
66 	/* Use snprintf(3) so that we don't reenter stdio(3). */
67 	(void)snprintf(buf, sizeof(buf),
68 	    "%ju+%ju records in\n%ju+%ju records out\n",
69 	    st.in_full, st.in_part, st.out_full, st.out_part);
70 	(void)write(STDERR_FILENO, buf, strlen(buf));
71 	if (st.swab) {
72 		(void)snprintf(buf, sizeof(buf), "%ju odd length swab %s\n",
73 		     st.swab, (st.swab == 1) ? "block" : "blocks");
74 		(void)write(STDERR_FILENO, buf, strlen(buf));
75 	}
76 	if (st.trunc) {
77 		(void)snprintf(buf, sizeof(buf), "%ju truncated %s\n",
78 		     st.trunc, (st.trunc == 1) ? "block" : "blocks");
79 		(void)write(STDERR_FILENO, buf, strlen(buf));
80 	}
81 	(void)snprintf(buf, sizeof(buf),
82 	    "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
83 	    st.bytes, secs, st.bytes / secs);
84 	(void)write(STDERR_FILENO, buf, strlen(buf));
85 }
86 
87 /* ARGSUSED */
88 void
89 summaryx(int notused __unused)
90 {
91 	int save_errno = errno;
92 
93 	summary();
94 	errno = save_errno;
95 }
96 
97 /* ARGSUSED */
98 void
99 terminate(int sig)
100 {
101 
102 	summary();
103 	_exit(sig == 0 ? 0 : 1);
104 }
105