a2e59d80d5
when printing swapinfo output, rather than (total), as that is (strictly speaking) more accurate. Pointed out by: Rob <spamrefuse at yahoo dot com> MFC after: 3 days
610 lines
14 KiB
C
610 lines
14 KiB
C
/*-
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* Copyright (c) 1980, 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 2002 Networks Associates Technologies, Inc.
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* All rights reserved.
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*
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* Portions of this software were developed for the FreeBSD Project by
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* ThinkSec AS and NAI Labs, the Security Research Division of Network
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* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
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* ("CBOSS"), as part of the DARPA CHATS research program.
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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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* 4. 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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#if 0
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/stdint.h>
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#include <sys/ioctl.h>
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#include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */
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#include <sys/tty.h>
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#include <sys/blist.h>
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#include <sys/sysctl.h>
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#include <vm/vm_param.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <kvm.h>
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#include <libutil.h>
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#include <limits.h>
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#include <nlist.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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enum {
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NL_CONSTTY,
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NL_MAXFILES,
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NL_NFILES,
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NL_TTY_LIST
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};
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static struct nlist nl[] = {
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{ .n_name = "_constty" },
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{ .n_name = "_maxfiles" },
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{ .n_name = "_nfiles" },
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{ .n_name = "_tty_list" },
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{ .n_name = "" }
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};
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static int humanflag;
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static int usenumflag;
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static int totalflag;
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static int swapflag;
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static char *nlistf;
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static char *memf;
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static kvm_t *kd;
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static char *usagestr;
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static void filemode(void);
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static int getfiles(char **, size_t *);
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static void swapmode(void);
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static void ttymode(void);
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static void ttyprt(struct xtty *);
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static void usage(void);
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int
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main(int argc, char *argv[])
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{
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int ch, i, quit, ret;
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int fileflag, ttyflag;
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char buf[_POSIX2_LINE_MAX],*opts;
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fileflag = swapflag = ttyflag = 0;
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/* We will behave like good old swapinfo if thus invoked */
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opts = strrchr(argv[0], '/');
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if (opts)
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opts++;
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else
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opts = argv[0];
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if (!strcmp(opts, "swapinfo")) {
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swapflag = 1;
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opts = "hkM:N:";
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usagestr = "swapinfo [-hk] [-M core [-N system]]";
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} else {
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opts = "TM:N:hfknst";
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usagestr = "pstat [-Tfhknst] [-M core [-N system]]";
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}
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while ((ch = getopt(argc, argv, opts)) != -1)
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switch (ch) {
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case 'f':
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fileflag = 1;
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break;
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case 'h':
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humanflag = 1;
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break;
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case 'k':
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putenv("BLOCKSIZE=1K");
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break;
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case 'M':
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memf = optarg;
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break;
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case 'N':
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nlistf = optarg;
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break;
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case 'n':
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usenumflag = 1;
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break;
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case 's':
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++swapflag;
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break;
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case 'T':
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totalflag = 1;
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break;
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case 't':
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ttyflag = 1;
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break;
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (memf != NULL) {
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kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
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if (kd == NULL)
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errx(1, "kvm_openfiles: %s", buf);
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if ((ret = kvm_nlist(kd, nl)) != 0) {
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if (ret == -1)
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errx(1, "kvm_nlist: %s", kvm_geterr(kd));
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quit = 0;
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for (i = 0; nl[i].n_name[0] != '\0'; ++i)
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if (nl[i].n_value == 0) {
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quit = 1;
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warnx("undefined symbol: %s",
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nl[i].n_name);
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}
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if (quit)
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exit(1);
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}
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}
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if (!(fileflag | ttyflag | swapflag | totalflag))
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usage();
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if (fileflag || totalflag)
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filemode();
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if (ttyflag)
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ttymode();
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if (swapflag || totalflag)
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swapmode();
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exit (0);
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}
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static void
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usage(void)
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{
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fprintf(stderr, "usage: %s\n", usagestr);
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exit (1);
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}
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static const char fhdr32[] =
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" LOC TYPE FLG CNT MSG DATA OFFSET\n";
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/* c0000000 ------ RWAI 123 123 c0000000 1000000000000000 */
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static const char fhdr64[] =
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" LOC TYPE FLG CNT MSG DATA OFFSET\n";
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/* c000000000000000 ------ RWAI 123 123 c000000000000000 1000000000000000 */
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static const char hdr[] =
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" LINE RAW CAN OUT IHIWT ILOWT OHWT LWT COL STATE SESS PGID DISC\n";
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static void
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ttymode_kvm(void)
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{
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TAILQ_HEAD(, tty) tl;
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struct tty *tp, tty;
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struct xtty xt;
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(void)printf("%s", hdr);
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bzero(&xt, sizeof xt);
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xt.xt_size = sizeof xt;
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if (kvm_read(kd, nl[NL_TTY_LIST].n_value, &tl, sizeof tl) != sizeof tl)
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errx(1, "kvm_read(): %s", kvm_geterr(kd));
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tp = TAILQ_FIRST(&tl);
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while (tp != NULL) {
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if (kvm_read(kd, (u_long)tp, &tty, sizeof tty) != sizeof tty)
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errx(1, "kvm_read(): %s", kvm_geterr(kd));
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xt.xt_rawcc = tty.t_rawq.c_cc;
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xt.xt_cancc = tty.t_canq.c_cc;
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xt.xt_outcc = tty.t_outq.c_cc;
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#define XT_COPY(field) xt.xt_##field = tty.t_##field
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XT_COPY(line);
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XT_COPY(state);
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XT_COPY(column);
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XT_COPY(ihiwat);
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XT_COPY(ilowat);
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XT_COPY(ohiwat);
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XT_COPY(olowat);
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#undef XT_COPY
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ttyprt(&xt);
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tp = TAILQ_NEXT(tp, t_list);
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}
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}
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static void
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ttymode_sysctl(void)
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{
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struct xtty *xt, *end;
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void *xttys;
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size_t len;
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(void)printf("%s", hdr);
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if ((xttys = malloc(len = sizeof *xt)) == NULL)
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err(1, "malloc()");
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while (sysctlbyname("kern.ttys", xttys, &len, 0, 0) == -1) {
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if (errno != ENOMEM)
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err(1, "sysctlbyname()");
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len *= 2;
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if ((xttys = realloc(xttys, len)) == NULL)
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err(1, "realloc()");
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}
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if (len > 0) {
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end = (struct xtty *)((char *)xttys + len);
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for (xt = xttys; xt < end; xt++)
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ttyprt(xt);
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}
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}
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static void
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ttymode(void)
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{
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if (kd != NULL)
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ttymode_kvm();
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else
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ttymode_sysctl();
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}
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static struct {
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int flag;
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char val;
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} ttystates[] = {
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#ifdef TS_WOPEN
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{ TS_WOPEN, 'W'},
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#endif
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{ TS_ISOPEN, 'O'},
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{ TS_CARR_ON, 'C'},
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#ifdef TS_CONNECTED
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{ TS_CONNECTED, 'c'},
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#endif
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{ TS_TIMEOUT, 'T'},
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{ TS_FLUSH, 'F'},
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{ TS_BUSY, 'B'},
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#ifdef TS_ASLEEP
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{ TS_ASLEEP, 'A'},
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#endif
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#ifdef TS_SO_OLOWAT
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{ TS_SO_OLOWAT, 'A'},
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#endif
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#ifdef TS_SO_OCOMPLETE
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{ TS_SO_OCOMPLETE, 'a'},
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#endif
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{ TS_XCLUDE, 'X'},
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{ TS_TTSTOP, 'S'},
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#ifdef TS_CAR_OFLOW
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{ TS_CAR_OFLOW, 'm'},
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#endif
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#ifdef TS_CTS_OFLOW
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{ TS_CTS_OFLOW, 'o'},
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#endif
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#ifdef TS_DSR_OFLOW
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{ TS_DSR_OFLOW, 'd'},
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#endif
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{ TS_TBLOCK, 'K'},
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{ TS_ASYNC, 'Y'},
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{ TS_BKSL, 'D'},
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{ TS_ERASE, 'E'},
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{ TS_LNCH, 'L'},
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{ TS_TYPEN, 'P'},
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{ TS_CNTTB, 'N'},
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#ifdef TS_CAN_BYPASS_L_RINT
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{ TS_CAN_BYPASS_L_RINT, 'l'},
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#endif
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#ifdef TS_SNOOP
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{ TS_SNOOP, 's'},
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#endif
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#ifdef TS_ZOMBIE
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{ TS_ZOMBIE, 'Z'},
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#endif
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{ 0, '\0'},
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};
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static void
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ttyprt(struct xtty *xt)
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{
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int i, j;
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char *name, state[20];
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if (xt->xt_size != sizeof *xt)
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errx(1, "struct xtty size mismatch");
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if (usenumflag || xt->xt_dev == 0 ||
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(name = devname(xt->xt_dev, S_IFCHR)) == NULL)
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printf(" %2d,%-2d", major(xt->xt_dev), minor(xt->xt_dev));
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else
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(void)printf("%7s ", name);
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(void)printf("%2ld %3ld ", xt->xt_rawcc, xt->xt_cancc);
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(void)printf("%3ld %5d %5d %4d %3d %7d ", xt->xt_outcc,
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xt->xt_ihiwat, xt->xt_ilowat, xt->xt_ohiwat, xt->xt_olowat,
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xt->xt_column);
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for (i = j = 0; ttystates[i].flag; i++)
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if (xt->xt_state & ttystates[i].flag)
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state[j++] = ttystates[i].val;
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if (j == 0)
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state[j++] = '-';
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state[j] = '\0';
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(void)printf("%-6s %8d", state, xt->xt_sid);
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(void)printf("%6d ", xt->xt_pgid);
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switch (xt->xt_line) {
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case TTYDISC:
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(void)printf("term\n");
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break;
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case NTTYDISC:
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(void)printf("ntty\n");
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break;
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case SLIPDISC:
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(void)printf("slip\n");
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break;
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case PPPDISC:
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(void)printf("ppp\n");
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break;
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default:
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(void)printf("%d\n", xt->xt_line);
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break;
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}
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}
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static void
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filemode(void)
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{
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struct xfile *fp;
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char *buf, flagbuf[16], *fbp;
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int maxf, openf;
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size_t len;
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static char *dtypes[] = { "???", "inode", "socket", "pipe",
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"fifo", "kqueue", "crypto" };
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int i;
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int wid;
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if (kd != NULL) {
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if (kvm_read(kd, nl[NL_MAXFILES].n_value,
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&maxf, sizeof maxf) != sizeof maxf ||
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kvm_read(kd, nl[NL_NFILES].n_value,
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&openf, sizeof openf) != sizeof openf)
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errx(1, "kvm_read(): %s", kvm_geterr(kd));
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} else {
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len = sizeof(int);
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if (sysctlbyname("kern.maxfiles", &maxf, &len, 0, 0) == -1 ||
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sysctlbyname("kern.openfiles", &openf, &len, 0, 0) == -1)
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err(1, "sysctlbyname()");
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}
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if (totalflag) {
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(void)printf("%3d/%3d files\n", openf, maxf);
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return;
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}
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if (getfiles(&buf, &len) == -1)
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return;
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openf = len / sizeof *fp;
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(void)printf("%d/%d open files\n", openf, maxf);
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printf(sizeof(uintptr_t) == 4 ? fhdr32 : fhdr64);
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wid = (int)sizeof(uintptr_t) * 2;
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for (fp = (struct xfile *)buf, i = 0; i < openf; ++fp, ++i) {
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if ((size_t)fp->xf_type >= sizeof(dtypes) / sizeof(dtypes[0]))
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continue;
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(void)printf("%*jx", wid, (uintmax_t)(uintptr_t)fp->xf_file);
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(void)printf(" %-6.6s", dtypes[fp->xf_type]);
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fbp = flagbuf;
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if (fp->xf_flag & FREAD)
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*fbp++ = 'R';
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if (fp->xf_flag & FWRITE)
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*fbp++ = 'W';
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if (fp->xf_flag & FAPPEND)
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*fbp++ = 'A';
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if (fp->xf_flag & FASYNC)
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*fbp++ = 'I';
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*fbp = '\0';
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(void)printf(" %4s %3d", flagbuf, fp->xf_count);
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(void)printf(" %3d", fp->xf_msgcount);
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(void)printf(" %*jx", wid, (uintmax_t)(uintptr_t)fp->xf_data);
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(void)printf(" %*jx\n", (int)sizeof(fp->xf_offset) * 2,
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(uintmax_t)fp->xf_offset);
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}
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free(buf);
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}
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static int
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getfiles(char **abuf, size_t *alen)
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{
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size_t len;
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int mib[2];
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char *buf;
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/*
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* XXX
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* Add emulation of KINFO_FILE here.
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*/
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if (kd != NULL)
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errx(1, "files on dead kernel, not implemented");
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mib[0] = CTL_KERN;
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mib[1] = KERN_FILE;
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if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
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warn("sysctl: KERN_FILE");
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return (-1);
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}
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if ((buf = malloc(len)) == NULL)
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errx(1, "malloc");
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if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
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warn("sysctl: KERN_FILE");
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return (-1);
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}
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*abuf = buf;
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*alen = len;
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return (0);
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}
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/*
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* swapmode is based on a program called swapinfo written
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* by Kevin Lahey <kml@rokkaku.atl.ga.us>.
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*/
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#define CONVERT(v) ((int64_t)(v) * pagesize / blocksize)
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static struct kvm_swap swtot;
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static int nswdev;
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static void
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print_swap_header(void)
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{
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int hlen;
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long blocksize;
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const char *header;
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header = getbsize(&hlen, &blocksize);
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if (totalflag == 0)
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(void)printf("%-15s %*s %8s %8s %8s\n",
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"Device", hlen, header,
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"Used", "Avail", "Capacity");
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}
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static void
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print_swap_line(const char *devname, intmax_t nblks, intmax_t bused,
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intmax_t bavail, float bpercent)
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{
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char usedbuf[5];
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char availbuf[5];
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int hlen, pagesize;
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long blocksize;
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pagesize = getpagesize();
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getbsize(&hlen, &blocksize);
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printf("%-15s %*jd ", devname, hlen, CONVERT(nblks));
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if (humanflag) {
|
|
humanize_number(usedbuf, sizeof(usedbuf),
|
|
CONVERT(blocksize * bused), "",
|
|
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
|
|
humanize_number(availbuf, sizeof(availbuf),
|
|
CONVERT(blocksize * bavail), "",
|
|
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
|
|
printf("%8s %8s %5.0f%%\n", usedbuf, availbuf, bpercent);
|
|
} else {
|
|
printf("%8jd %8jd %5.0f%%\n", (intmax_t)CONVERT(bused),
|
|
(intmax_t)CONVERT(bavail), bpercent);
|
|
}
|
|
}
|
|
|
|
static void
|
|
print_swap(struct kvm_swap *ksw)
|
|
{
|
|
|
|
swtot.ksw_total += ksw->ksw_total;
|
|
swtot.ksw_used += ksw->ksw_used;
|
|
++nswdev;
|
|
if (totalflag == 0)
|
|
print_swap_line(ksw->ksw_devname, ksw->ksw_total,
|
|
ksw->ksw_used, ksw->ksw_total - ksw->ksw_used,
|
|
(ksw->ksw_used * 100.0) / ksw->ksw_total);
|
|
}
|
|
|
|
static void
|
|
print_swap_total(void)
|
|
{
|
|
int hlen, pagesize;
|
|
long blocksize;
|
|
|
|
pagesize = getpagesize();
|
|
getbsize(&hlen, &blocksize);
|
|
if (totalflag) {
|
|
blocksize = 1024 * 1024;
|
|
(void)printf("%jdM/%jdM swap space\n",
|
|
CONVERT(swtot.ksw_used), CONVERT(swtot.ksw_total));
|
|
} else if (nswdev > 1) {
|
|
print_swap_line("Total", swtot.ksw_total, swtot.ksw_used,
|
|
swtot.ksw_total - swtot.ksw_used,
|
|
(swtot.ksw_used * 100.0) / swtot.ksw_total);
|
|
}
|
|
}
|
|
|
|
static void
|
|
swapmode_kvm(void)
|
|
{
|
|
struct kvm_swap kswap[16];
|
|
int i, n;
|
|
|
|
n = kvm_getswapinfo(kd, kswap, sizeof kswap / sizeof kswap[0],
|
|
SWIF_DEV_PREFIX);
|
|
|
|
print_swap_header();
|
|
for (i = 0; i < n; ++i)
|
|
print_swap(&kswap[i]);
|
|
print_swap_total();
|
|
}
|
|
|
|
static void
|
|
swapmode_sysctl(void)
|
|
{
|
|
struct kvm_swap ksw;
|
|
struct xswdev xsw;
|
|
size_t mibsize, size;
|
|
int mib[16], n;
|
|
|
|
print_swap_header();
|
|
mibsize = sizeof mib / sizeof mib[0];
|
|
if (sysctlnametomib("vm.swap_info", mib, &mibsize) == -1)
|
|
err(1, "sysctlnametomib()");
|
|
for (n = 0; ; ++n) {
|
|
mib[mibsize] = n;
|
|
size = sizeof xsw;
|
|
if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0) == -1)
|
|
break;
|
|
if (xsw.xsw_version != XSWDEV_VERSION)
|
|
errx(1, "xswdev version mismatch");
|
|
if (xsw.xsw_dev == NODEV)
|
|
snprintf(ksw.ksw_devname, sizeof ksw.ksw_devname,
|
|
"<NFSfile>");
|
|
else
|
|
snprintf(ksw.ksw_devname, sizeof ksw.ksw_devname,
|
|
"/dev/%s", devname(xsw.xsw_dev, S_IFCHR));
|
|
ksw.ksw_used = xsw.xsw_used;
|
|
ksw.ksw_total = xsw.xsw_nblks;
|
|
ksw.ksw_flags = xsw.xsw_flags;
|
|
print_swap(&ksw);
|
|
}
|
|
if (errno != ENOENT)
|
|
err(1, "sysctl()");
|
|
print_swap_total();
|
|
}
|
|
|
|
static void
|
|
swapmode(void)
|
|
{
|
|
if (kd != NULL)
|
|
swapmode_kvm();
|
|
else
|
|
swapmode_sysctl();
|
|
}
|