342 lines
8.3 KiB
C
342 lines
8.3 KiB
C
/* $NetBSD: misc.c,v 1.23 2011/11/07 22:24:23 jym Exp $ */
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/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Keith Muller of the University of California, San Diego and Lance
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* Visser of Convex Computer Corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)misc.c 8.3 (Berkeley) 4/2/94";
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#else
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__RCSID("$NetBSD: misc.c,v 1.23 2011/11/07 22:24:23 jym Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <util.h>
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#include <inttypes.h>
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#include "dd.h"
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#include "extern.h"
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#define tv2mS(tv) ((tv).tv_sec * 1000LL + ((tv).tv_usec + 500) / 1000)
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static void posix_summary(void);
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#ifndef NO_MSGFMT
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static void custom_summary(void);
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static void human_summary(void);
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static void quiet_summary(void);
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static void buffer_write(const char *, size_t, int);
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#endif /* NO_MSGFMT */
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void
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summary(void)
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{
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if (progress)
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(void)write(STDERR_FILENO, "\n", 1);
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#ifdef NO_MSGFMT
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return posix_summary();
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#else /* NO_MSGFMT */
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if (strncmp(msgfmt, "human", sizeof("human")) == 0)
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return human_summary();
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if (strncmp(msgfmt, "posix", sizeof("posix")) == 0)
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return posix_summary();
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if (strncmp(msgfmt, "quiet", sizeof("quiet")) == 0)
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return quiet_summary();
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return custom_summary();
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#endif /* NO_MSGFMT */
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}
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static void
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posix_summary(void)
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{
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char buf[100];
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int64_t mS;
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struct timeval tv;
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if (progress)
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(void)write(STDERR_FILENO, "\n", 1);
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(void)gettimeofday(&tv, NULL);
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mS = tv2mS(tv) - tv2mS(st.start);
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if (mS == 0)
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mS = 1;
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/* Use snprintf(3) so that we don't reenter stdio(3). */
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(void)snprintf(buf, sizeof(buf),
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"%llu+%llu records in\n%llu+%llu records out\n",
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(unsigned long long)st.in_full, (unsigned long long)st.in_part,
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(unsigned long long)st.out_full, (unsigned long long)st.out_part);
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(void)write(STDERR_FILENO, buf, strlen(buf));
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if (st.swab) {
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(void)snprintf(buf, sizeof(buf), "%llu odd length swab %s\n",
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(unsigned long long)st.swab,
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(st.swab == 1) ? "block" : "blocks");
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(void)write(STDERR_FILENO, buf, strlen(buf));
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}
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if (st.trunc) {
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(void)snprintf(buf, sizeof(buf), "%llu truncated %s\n",
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(unsigned long long)st.trunc,
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(st.trunc == 1) ? "block" : "blocks");
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(void)write(STDERR_FILENO, buf, strlen(buf));
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}
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if (st.sparse) {
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(void)snprintf(buf, sizeof(buf), "%llu sparse output %s\n",
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(unsigned long long)st.sparse,
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(st.sparse == 1) ? "block" : "blocks");
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(void)write(STDERR_FILENO, buf, strlen(buf));
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}
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(void)snprintf(buf, sizeof(buf),
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"%llu bytes transferred in %lu.%03d secs (%llu bytes/sec)\n",
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(unsigned long long) st.bytes,
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(long) (mS / 1000),
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(int) (mS % 1000),
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(unsigned long long) (st.bytes * 1000LL / mS));
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(void)write(STDERR_FILENO, buf, strlen(buf));
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}
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/* ARGSUSED */
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void
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summaryx(int notused)
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{
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summary();
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}
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/* ARGSUSED */
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void
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terminate(int signo)
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{
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summary();
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(void)raise_default_signal(signo);
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_exit(127);
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}
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#ifndef NO_MSGFMT
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/*
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* Buffer write(2) calls
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*/
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static void
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buffer_write(const char *str, size_t size, int flush)
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{
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static char wbuf[128];
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static size_t cnt = 0; /* Internal counter to allow wbuf to wrap */
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unsigned int i;
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for (i = 0; i < size; i++) {
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if (str != NULL) {
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wbuf[cnt++] = str[i];
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}
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if (cnt >= sizeof(wbuf)) {
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(void)write(STDERR_FILENO, wbuf, cnt);
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cnt = 0;
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}
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}
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if (flush != 0) {
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(void)write(STDERR_FILENO, wbuf, cnt);
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cnt = 0;
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}
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}
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/*
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* Write summary to stderr according to format 'fmt'. If 'enable' is 0, it
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* will not attempt to write anything. Can be used to validate the
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* correctness of the 'fmt' string.
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*/
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int
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dd_write_msg(const char *fmt, int enable)
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{
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char hbuf[7], nbuf[32];
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const char *ptr;
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int64_t mS;
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struct timeval tv;
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(void)gettimeofday(&tv, NULL);
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mS = tv2mS(tv) - tv2mS(st.start);
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if (mS == 0)
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mS = 1;
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#define ADDC(c) do { if (enable != 0) buffer_write(&c, 1, 0); } \
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while (/*CONSTCOND*/0)
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#define ADDS(p) do { if (enable != 0) buffer_write(p, strlen(p), 0); } \
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while (/*CONSTCOND*/0)
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for (ptr = fmt; *ptr; ptr++) {
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if (*ptr != '%') {
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ADDC(*ptr);
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continue;
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}
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switch (*++ptr) {
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case 'b':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.bytes);
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ADDS(nbuf);
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break;
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case 'B':
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if (humanize_number(hbuf, sizeof(hbuf),
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st.bytes, "B",
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HN_AUTOSCALE, HN_DECIMAL) == -1)
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warnx("humanize_number (bytes transferred)");
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ADDS(hbuf);
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break;
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case 'e':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long) (st.bytes * 1000LL / mS));
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ADDS(nbuf);
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break;
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case 'E':
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if (humanize_number(hbuf, sizeof(hbuf),
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st.bytes * 1000LL / mS, "B",
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HN_AUTOSCALE, HN_DECIMAL) == -1)
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warnx("humanize_number (bytes per second)");
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ADDS(hbuf); ADDS("/sec");
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break;
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case 'i':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.in_part);
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ADDS(nbuf);
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break;
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case 'I':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.in_full);
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ADDS(nbuf);
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break;
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case 'o':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.out_part);
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ADDS(nbuf);
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break;
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case 'O':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.out_full);
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ADDS(nbuf);
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break;
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case 's':
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(void)snprintf(nbuf, sizeof(nbuf), "%li.%03d",
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(long) (mS / 1000), (int) (mS % 1000));
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ADDS(nbuf);
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break;
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case 'p':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.sparse);
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ADDS(nbuf);
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break;
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case 't':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.trunc);
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ADDS(nbuf);
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break;
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case 'w':
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(void)snprintf(nbuf, sizeof(nbuf), "%llu",
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(unsigned long long)st.swab);
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ADDS(nbuf);
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break;
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case 'P':
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ADDS("block");
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if (st.sparse != 1) ADDS("s");
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break;
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case 'T':
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ADDS("block");
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if (st.trunc != 1) ADDS("s");
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break;
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case 'W':
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ADDS("block");
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if (st.swab != 1) ADDS("s");
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break;
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case '%':
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ADDC(*ptr);
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break;
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default:
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if (*ptr == '\0')
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goto done;
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errx(EXIT_FAILURE, "unknown specifier '%c' in "
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"msgfmt string", *ptr);
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/* NOTREACHED */
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}
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}
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done:
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/* flush buffer */
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buffer_write(NULL, 0, 1);
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return 0;
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}
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static void
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custom_summary(void)
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{
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dd_write_msg(msgfmt, 1);
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}
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static void
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human_summary(void)
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{
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(void)dd_write_msg("%I+%i records in\n%O+%o records out\n", 1);
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if (st.swab) {
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(void)dd_write_msg("%w odd length swab %W\n", 1);
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}
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if (st.trunc) {
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(void)dd_write_msg("%t truncated %T\n", 1);
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}
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if (st.sparse) {
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(void)dd_write_msg("%p sparse output %P\n", 1);
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}
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(void)dd_write_msg("%b bytes (%B) transferred in %s secs "
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"(%e bytes/sec - %E)\n", 1);
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}
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static void
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quiet_summary(void)
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{
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/* stay quiet */
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}
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#endif /* NO_MSGFMT */
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