sysctl-of-fish
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cgd
parent
5a9cb8543e
commit
810b121377
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# @(#)Makefile 8.1 (Berkeley) 6/6/93
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PROG= sysctl
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MAN8= sysctl.0
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.include <bsd.prog.mk>
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@ -0,0 +1,229 @@
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/*
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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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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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1993\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[] = "@(#)pathconf.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/unistd.h>
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#include <errno.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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#define PC_NAMES { \
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{ 0, 0 }, \
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{ "link_max", CTLTYPE_INT }, \
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{ "max_canon", CTLTYPE_INT }, \
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{ "max_input", CTLTYPE_INT }, \
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{ "name_max", CTLTYPE_INT }, \
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{ "path_max", CTLTYPE_INT }, \
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{ "pipe_buf", CTLTYPE_INT }, \
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{ "chown_restricted", CTLTYPE_INT }, \
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{ "no_trunc", CTLTYPE_INT }, \
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{ "vdisable", CTLTYPE_INT }, \
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}
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#define PC_MAXID 10
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struct ctlname pcnames[] = PC_NAMES;
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char names[BUFSIZ];
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struct list {
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struct ctlname *list;
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int size;
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};
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struct list pclist = { pcnames, PC_MAXID };
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int Aflag, aflag, nflag, wflag, stdinflag;
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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extern char *optarg;
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extern int optind;
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char *path;
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int ch;
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while ((ch = getopt(argc, argv, "Aan")) != EOF) {
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switch (ch) {
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case 'A':
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Aflag = 1;
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break;
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case 'a':
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aflag = 1;
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break;
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case 'n':
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nflag = 1;
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc == 0)
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usage();
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path = *argv++;
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if (strcmp(path, "-") == 0)
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stdinflag = 1;
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argc--;
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if (Aflag || aflag) {
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listall(path, &pclist);
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exit(0);
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}
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if (argc == 0)
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usage();
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while (argc-- > 0)
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parse(path, *argv, 1);
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exit(0);
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}
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/*
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* List all variables known to the system.
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*/
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listall(path, lp)
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char *path;
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struct list *lp;
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{
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int lvl2;
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if (lp->list == 0)
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return;
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for (lvl2 = 0; lvl2 < lp->size; lvl2++) {
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if (lp->list[lvl2].ctl_name == 0)
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continue;
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parse(path, lp->list[lvl2].ctl_name, Aflag);
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}
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}
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/*
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* Parse a name into an index.
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* Lookup and print out the attribute if it exists.
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*/
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parse(pathname, string, flags)
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char *pathname;
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char *string;
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int flags;
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{
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int indx, value;
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char *bufp, buf[BUFSIZ];
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bufp = buf;
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snprintf(buf, BUFSIZ, "%s", string);
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if ((indx = findname(string, "top", &bufp, &pclist)) == -1)
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return;
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if (bufp) {
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fprintf(stderr, "name %s in %s is unknown\n", *bufp, string);
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return;
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}
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if (stdinflag)
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value = fpathconf(0, indx);
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else
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value = pathconf(pathname, indx);
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if (value == -1) {
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if (flags == 0)
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return;
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switch (errno) {
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case EOPNOTSUPP:
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fprintf(stderr, "%s: value is not available\n", string);
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return;
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case ENOTDIR:
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fprintf(stderr, "%s: specification is incomplete\n",
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string);
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return;
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case ENOMEM:
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fprintf(stderr, "%s: type is unknown to this program\n",
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string);
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return;
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default:
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perror(string);
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return;
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}
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}
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if (!nflag)
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fprintf(stdout, "%s = ", string);
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fprintf(stdout, "%d\n", value);
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}
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/*
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* Scan a list of names searching for a particular name.
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*/
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findname(string, level, bufp, namelist)
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char *string;
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char *level;
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char **bufp;
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struct list *namelist;
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{
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char *name;
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int i;
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if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) {
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fprintf(stderr, "%s: incomplete specification\n", string);
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return (-1);
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}
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for (i = 0; i < namelist->size; i++)
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if (namelist->list[i].ctl_name != NULL &&
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strcmp(name, namelist->list[i].ctl_name) == 0)
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break;
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if (i == namelist->size) {
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fprintf(stderr, "%s level name %s in %s is invalid\n",
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level, name, string);
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return (-1);
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}
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return (i);
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}
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usage()
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{
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(void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n",
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"pathname [-n] variable ...",
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"pathname [-n] -a", "pathname [-n] -A");
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exit(1);
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}
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@ -0,0 +1,208 @@
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.\" Copyright (c) 1993
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.\" The Regents of the University of California. All rights reserved.
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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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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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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.\" @(#)sysctl.8 8.1 (Berkeley) 6/6/93
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.\"
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.Dd "June 6, 1993"
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.Dt SYSCTL 8
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.Os
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.Sh NAME
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.Nm sysctl
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.Nd get or set kernel state
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.Sh SYNOPSIS
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.Nm sysctl
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.Op Fl n
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.Ar name ...
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.Nm sysctl
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.Op Fl n
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.Fl w
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.Ar name=value ...
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.Nm sysctl
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.Op Fl n
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.Fl aA
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.Sh DESCRIPTION
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The
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.Nm sysctl
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utility retrieves kernel state and allows processes with
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appropriate privilege to set kernel state.
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The state to be retrieved or set is described using a
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``Management Information Base'' (``MIB'') style name,
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described as a dotted set of components.
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The
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.Fl a
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flag can be used to list all the currently available string or integer values.
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The
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.Fl A
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flag will list all the known MIB names including tables.
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Those with string or integer values will be printed as with the
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.Fl a
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flag; for the table values,
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the name of the utility to retrieve them is given.
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.Pp
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The
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.Fl n
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flag specifies that the printing of the field name should be
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suppressed and that only its value should be output.
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This flag is useful for setting shell variables.
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For example, to save the pagesize in variable psize, use:
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.Bd -literal -offset indent -compact
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set psize=`sysctl -n hw.pagesize`
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.Ed
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.Pp
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If just a MIB style name is given,
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the corresponding value is retrieved.
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If a value is to be set, the
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.Fl w
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flag must be specified and the MIB name followed
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by an equal sign and the new value to be used.
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.Pp
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The information available from
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.Nm sysctl
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consists of integers, strings, and tables.
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The tabular information can only be retrieved by special
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purpose programs such as
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.Nm ps ,
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.Nm systat ,
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and
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.Nm netstat .
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The string and integer information is summaried below.
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For a detailed description of these variable see
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.Xr sysctl 3 .
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The changeable column indicates whether a process with appropriate
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privilege can change the value.
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.Bl -column net.inet.ip.forwardingxxxxxx integerxxx
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.It Sy Name Type Changeable
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.It kern.ostype string no
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.It kern.osrelease string no
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.It kern.osrevision integer no
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.It kern.version string no
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.It kern.maxvnodes integer yes
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.It kern.maxproc integer yes
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.It kern.maxfiles integer yes
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.It kern.argmax integer no
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.It kern.securelevel integer raise only
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.It kern.hostname string yes
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.It kern.hostid integer yes
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.It kern.clockrate struct no
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.It kern.posix1version integer no
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.It kern.ngroups integer no
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||||||
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.It kern.job_control integer no
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||||||
|
.It kern.saved_ids integer no
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||||||
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.It kern.link_max integer no
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||||||
|
.It kern.max_canon integer no
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||||||
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.It kern.max_input integer no
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||||||
|
.It kern.name_max integer no
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||||||
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.It kern.path_max integer no
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||||||
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.It kern.pipe_buf integer no
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.It kern.chown_restricted integer no
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||||||
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.It kern.no_trunc integer no
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.It kern.vdisable integer no
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.It kern.boottime struct no
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.It vm.loadavg struct no
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.It machdep.console_device dev_t no
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.It net.inet.ip.forwarding integer yes
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||||||
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.It net.inet.ip.redirect integer yes
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||||||
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.It net.inet.ip.ttl integer yes
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.It net.inet.icmp.maskrepl integer yes
|
||||||
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.It net.inet.udp.checksum integer yes
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||||||
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.It hw.machine string no
|
||||||
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.It hw.model string no
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||||||
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.It hw.ncpu integer no
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||||||
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.It hw.byteorder integer no
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||||||
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.It hw.physmem integer no
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.It hw.usermem integer no
|
||||||
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.It hw.pagesize integer no
|
||||||
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.It user.cs_path string no
|
||||||
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.It user.bc_base_max integer no
|
||||||
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.It user.bc_dim_max integer no
|
||||||
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.It user.bc_scale_max integer no
|
||||||
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.It user.bc_string_max integer no
|
||||||
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.It user.coll_weights_max integer no
|
||||||
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.It user.expr_nest_max integer no
|
||||||
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.It user.line_max integer no
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||||||
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.It user.re_dup_max integer no
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||||||
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.It user.posix2_version integer no
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||||||
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.It user.posix2_c_bind integer no
|
||||||
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.It user.posix2_c_dev integer no
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||||||
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.It user.posix2_char_term integer no
|
||||||
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.It user.posix2_fort_dev integer no
|
||||||
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.It user.posix2_fort_run integer no
|
||||||
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.It user.posix2_localedef integer no
|
||||||
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.It user.posix2_sw_dev integer no
|
||||||
|
.It user.posix2_upe integer no
|
||||||
|
.El
|
||||||
|
.Sh EXAMPLES
|
||||||
|
.Pp
|
||||||
|
For example, to retrieve the maximum number of processes allowed
|
||||||
|
in the system, one would use the follow request:
|
||||||
|
.Bd -literal -offset indent -compact
|
||||||
|
sysctl kern.maxproc
|
||||||
|
.Ed
|
||||||
|
.Pp
|
||||||
|
To set the maximum number of processes allowed
|
||||||
|
in the system to 1000, one would use the follow request:
|
||||||
|
.Bd -literal -offset indent -compact
|
||||||
|
sysctl -w kern.maxproc=1000
|
||||||
|
.Ed
|
||||||
|
.Pp
|
||||||
|
Information about the system clock rate may be obtained with:
|
||||||
|
.Bd -literal -offset indent -compact
|
||||||
|
sysctl kern.clockrate
|
||||||
|
.Ed
|
||||||
|
.Pp
|
||||||
|
Information about the load average history may be obtained with
|
||||||
|
.Bd -literal -offset indent -compact
|
||||||
|
sysctl vm.loadavg
|
||||||
|
.Ed
|
||||||
|
.Sh FILES
|
||||||
|
.Bl -tag -width <netinet/icmpXvar.h> -compact
|
||||||
|
.It Pa <sys/sysctl.h>
|
||||||
|
definitions for top level identifiers, second level kernel and hardware
|
||||||
|
identifiers, and user level identifiers
|
||||||
|
.It Pa <sys/socket.h>
|
||||||
|
definitions for second level network identifiers
|
||||||
|
.It Pa <sys/gmon.h>
|
||||||
|
definitions for third level profiling identifiers
|
||||||
|
.It Pa <vm/vm_param.h>
|
||||||
|
definitions for second level virtual memory identifiers
|
||||||
|
.It Pa <netinet/in.h>
|
||||||
|
definitions for third level Internet identifiers and
|
||||||
|
fourth level IP identifiers
|
||||||
|
.It Pa <netinet/icmp_var.h>
|
||||||
|
definitions for fourth level ICMP identifiers
|
||||||
|
.It Pa <netinet/udp_var.h>
|
||||||
|
definitions for fourth level UDP identifiers
|
||||||
|
.El
|
||||||
|
.Sh SEE ALSO
|
||||||
|
.Xr sysctl 3
|
||||||
|
.Sh HISTORY
|
||||||
|
.Nm sysctl
|
||||||
|
first appeared in 4.4BSD.
|
||||||
|
|
@ -0,0 +1,572 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 1993
|
||||||
|
* The Regents of the University of California. All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. All advertising materials mentioning features or use of this software
|
||||||
|
* must display the following acknowledgement:
|
||||||
|
* This product includes software developed by the University of
|
||||||
|
* California, Berkeley and its contributors.
|
||||||
|
* 4. Neither the name of the University nor the names of its contributors
|
||||||
|
* may be used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef lint
|
||||||
|
static char copyright[] =
|
||||||
|
"@(#) Copyright (c) 1993\n\
|
||||||
|
The Regents of the University of California. All rights reserved.\n";
|
||||||
|
#endif /* not lint */
|
||||||
|
|
||||||
|
#ifndef lint
|
||||||
|
static char sccsid[] = "@(#)sysctl.c 8.1 (Berkeley) 6/6/93";
|
||||||
|
#endif /* not lint */
|
||||||
|
|
||||||
|
#include <sys/param.h>
|
||||||
|
#include <sys/gmon.h>
|
||||||
|
#include <sys/stat.h>
|
||||||
|
#include <sys/sysctl.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <vm/vm_param.h>
|
||||||
|
#include <machine/cpu.h>
|
||||||
|
|
||||||
|
#include <netinet/in.h>
|
||||||
|
#include <netinet/in_systm.h>
|
||||||
|
#include <netinet/ip.h>
|
||||||
|
#include <netinet/ip_icmp.h>
|
||||||
|
#include <netinet/icmp_var.h>
|
||||||
|
#include <netinet/ip_var.h>
|
||||||
|
#include <netinet/udp.h>
|
||||||
|
#include <netinet/udp_var.h>
|
||||||
|
|
||||||
|
#include <errno.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
struct ctlname topname[] = CTL_NAMES;
|
||||||
|
struct ctlname kernname[] = CTL_KERN_NAMES;
|
||||||
|
struct ctlname vmname[] = CTL_VM_NAMES;
|
||||||
|
struct ctlname netname[] = CTL_NET_NAMES;
|
||||||
|
struct ctlname hwname[] = CTL_HW_NAMES;
|
||||||
|
struct ctlname username[] = CTL_USER_NAMES;
|
||||||
|
struct ctlname debugname[CTL_DEBUG_MAXID];
|
||||||
|
#ifdef CTL_MACHDEP_NAMES
|
||||||
|
struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
|
||||||
|
#endif
|
||||||
|
char names[BUFSIZ];
|
||||||
|
|
||||||
|
struct list {
|
||||||
|
struct ctlname *list;
|
||||||
|
int size;
|
||||||
|
};
|
||||||
|
struct list toplist = { topname, CTL_MAXID };
|
||||||
|
struct list secondlevel[] = {
|
||||||
|
{ 0, 0 }, /* CTL_UNSPEC */
|
||||||
|
{ kernname, KERN_MAXID }, /* CTL_KERN */
|
||||||
|
{ vmname, VM_MAXID }, /* CTL_VM */
|
||||||
|
{ 0, 0 }, /* CTL_FS */
|
||||||
|
{ netname, NET_MAXID }, /* CTL_NET */
|
||||||
|
{ 0, CTL_DEBUG_MAXID }, /* CTL_DEBUG */
|
||||||
|
{ hwname, HW_MAXID }, /* CTL_HW */
|
||||||
|
#ifdef CTL_MACHDEP_NAMES
|
||||||
|
{ machdepname, CPU_MAXID }, /* CTL_MACHDEP */
|
||||||
|
#else
|
||||||
|
{ 0, 0 }, /* CTL_MACHDEP */
|
||||||
|
#endif
|
||||||
|
{ username, USER_MAXID }, /* CTL_USER_NAMES */
|
||||||
|
};
|
||||||
|
|
||||||
|
int Aflag, aflag, nflag, wflag;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Variables requiring special processing.
|
||||||
|
*/
|
||||||
|
#define CLOCK 0x00000001
|
||||||
|
#define BOOTTIME 0x00000002
|
||||||
|
#define CONSDEV 0x00000004
|
||||||
|
|
||||||
|
int
|
||||||
|
main(argc, argv)
|
||||||
|
int argc;
|
||||||
|
char *argv[];
|
||||||
|
{
|
||||||
|
extern char *optarg;
|
||||||
|
extern int optind;
|
||||||
|
int ch, lvl1;
|
||||||
|
|
||||||
|
while ((ch = getopt(argc, argv, "Aanw")) != EOF) {
|
||||||
|
switch (ch) {
|
||||||
|
|
||||||
|
case 'A':
|
||||||
|
Aflag = 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'a':
|
||||||
|
aflag = 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'n':
|
||||||
|
nflag = 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'w':
|
||||||
|
wflag = 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
usage();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
argc -= optind;
|
||||||
|
argv += optind;
|
||||||
|
|
||||||
|
if (Aflag || aflag) {
|
||||||
|
debuginit();
|
||||||
|
for (lvl1 = 1; lvl1 < CTL_MAXID; lvl1++)
|
||||||
|
listall(topname[lvl1].ctl_name, &secondlevel[lvl1]);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
if (argc == 0)
|
||||||
|
usage();
|
||||||
|
while (argc-- > 0)
|
||||||
|
parse(*argv, 1);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* List all variables known to the system.
|
||||||
|
*/
|
||||||
|
listall(prefix, lp)
|
||||||
|
char *prefix;
|
||||||
|
struct list *lp;
|
||||||
|
{
|
||||||
|
int lvl2;
|
||||||
|
char *cp, name[BUFSIZ];
|
||||||
|
|
||||||
|
if (lp->list == 0)
|
||||||
|
return;
|
||||||
|
strcpy(name, prefix);
|
||||||
|
cp = &name[strlen(name)];
|
||||||
|
*cp++ = '.';
|
||||||
|
for (lvl2 = 0; lvl2 < lp->size; lvl2++) {
|
||||||
|
if (lp->list[lvl2].ctl_name == 0)
|
||||||
|
continue;
|
||||||
|
strcpy(cp, lp->list[lvl2].ctl_name);
|
||||||
|
parse(name, Aflag);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Parse a name into a MIB entry.
|
||||||
|
* Lookup and print out the MIB entry if it exists.
|
||||||
|
* Set a new value if requested.
|
||||||
|
*/
|
||||||
|
parse(string, flags)
|
||||||
|
char *string;
|
||||||
|
int flags;
|
||||||
|
{
|
||||||
|
int indx, type, state, size, len;
|
||||||
|
int special = 0;
|
||||||
|
void *newval = 0;
|
||||||
|
int intval, newsize = 0;
|
||||||
|
quad_t quadval;
|
||||||
|
struct list *lp;
|
||||||
|
int mib[CTL_MAXNAME];
|
||||||
|
char *cp, *bufp, buf[BUFSIZ], strval[BUFSIZ];
|
||||||
|
|
||||||
|
bufp = buf;
|
||||||
|
snprintf(buf, BUFSIZ, "%s", string);
|
||||||
|
if ((cp = strchr(string, '=')) != NULL) {
|
||||||
|
if (!wflag) {
|
||||||
|
fprintf(stderr, "Must specify -w to set variables\n");
|
||||||
|
exit(2);
|
||||||
|
}
|
||||||
|
*strchr(buf, '=') = '\0';
|
||||||
|
*cp++ = '\0';
|
||||||
|
while (isspace(*cp))
|
||||||
|
cp++;
|
||||||
|
newval = cp;
|
||||||
|
newsize = strlen(cp);
|
||||||
|
}
|
||||||
|
if ((indx = findname(string, "top", &bufp, &toplist)) == -1)
|
||||||
|
return;
|
||||||
|
mib[0] = indx;
|
||||||
|
if (indx == CTL_DEBUG)
|
||||||
|
debuginit();
|
||||||
|
lp = &secondlevel[indx];
|
||||||
|
if (lp->list == 0) {
|
||||||
|
fprintf(stderr, "%s: class is not implemented\n",
|
||||||
|
topname[indx]);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (bufp == NULL) {
|
||||||
|
listall(topname[indx].ctl_name, lp);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if ((indx = findname(string, "second", &bufp, lp)) == -1)
|
||||||
|
return;
|
||||||
|
mib[1] = indx;
|
||||||
|
type = lp->list[indx].ctl_type;
|
||||||
|
len = 2;
|
||||||
|
switch (mib[0]) {
|
||||||
|
|
||||||
|
case CTL_KERN:
|
||||||
|
switch (mib[1]) {
|
||||||
|
case KERN_PROF:
|
||||||
|
mib[2] = GPROF_STATE;
|
||||||
|
size = sizeof state;
|
||||||
|
if (sysctl(mib, 3, &state, &size, NULL, 0) < 0) {
|
||||||
|
if (flags == 0)
|
||||||
|
return;
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: ", string);
|
||||||
|
fprintf(stderr,
|
||||||
|
"kernel is not compiled for profiling\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: %s\n", string,
|
||||||
|
state == GMON_PROF_OFF ? "off" : "running");
|
||||||
|
return;
|
||||||
|
case KERN_VNODE:
|
||||||
|
case KERN_FILE:
|
||||||
|
if (flags == 0)
|
||||||
|
return;
|
||||||
|
fprintf(stderr,
|
||||||
|
"Use pstat to view %s information\n", string);
|
||||||
|
return;
|
||||||
|
case KERN_PROC:
|
||||||
|
if (flags == 0)
|
||||||
|
return;
|
||||||
|
fprintf(stderr,
|
||||||
|
"Use ps to view %s information\n", string);
|
||||||
|
return;
|
||||||
|
case KERN_CLOCKRATE:
|
||||||
|
special |= CLOCK;
|
||||||
|
break;
|
||||||
|
case KERN_BOOTTIME:
|
||||||
|
special |= BOOTTIME;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case CTL_HW:
|
||||||
|
break;
|
||||||
|
|
||||||
|
case CTL_VM:
|
||||||
|
if (mib[1] == VM_LOADAVG) {
|
||||||
|
double loads[3];
|
||||||
|
|
||||||
|
getloadavg(loads, 3);
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: ", string);
|
||||||
|
fprintf(stdout, "%.2f %.2f %.2f\n",
|
||||||
|
loads[0], loads[1], loads[2]);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (flags == 0)
|
||||||
|
return;
|
||||||
|
fprintf(stderr,
|
||||||
|
"Use vmstat or systat to view %s information\n", string);
|
||||||
|
return;
|
||||||
|
|
||||||
|
case CTL_NET:
|
||||||
|
if (mib[1] == PF_INET) {
|
||||||
|
len = sysctl_inet(string, &bufp, mib, flags, &type);
|
||||||
|
if (len >= 0)
|
||||||
|
break;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (flags == 0)
|
||||||
|
return;
|
||||||
|
fprintf(stderr, "Use netstat to view %s information\n", string);
|
||||||
|
return;
|
||||||
|
|
||||||
|
case CTL_DEBUG:
|
||||||
|
mib[2] = CTL_DEBUG_VALUE;
|
||||||
|
len = 3;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case CTL_MACHDEP:
|
||||||
|
#ifdef CPU_CONSDEV
|
||||||
|
if (mib[1] == CPU_CONSDEV)
|
||||||
|
special |= CONSDEV;
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
|
||||||
|
case CTL_FS:
|
||||||
|
case CTL_USER:
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
fprintf(stderr, "Illegal top level value: %d\n", mib[0]);
|
||||||
|
return;
|
||||||
|
|
||||||
|
}
|
||||||
|
if (bufp) {
|
||||||
|
fprintf(stderr, "name %s in %s is unknown\n", *bufp, string);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (newsize > 0) {
|
||||||
|
switch (type) {
|
||||||
|
case CTLTYPE_INT:
|
||||||
|
intval = atoi(newval);
|
||||||
|
newval = &intval;
|
||||||
|
newsize = sizeof intval;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case CTLTYPE_QUAD:
|
||||||
|
sscanf(newval, "%qd", &quadval);
|
||||||
|
newval = &quadval;
|
||||||
|
newsize = sizeof quadval;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
size = BUFSIZ;
|
||||||
|
if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) {
|
||||||
|
if (flags == 0)
|
||||||
|
return;
|
||||||
|
switch (errno) {
|
||||||
|
case EOPNOTSUPP:
|
||||||
|
fprintf(stderr, "%s: value is not available\n", string);
|
||||||
|
return;
|
||||||
|
case ENOTDIR:
|
||||||
|
fprintf(stderr, "%s: specification is incomplete\n",
|
||||||
|
string);
|
||||||
|
return;
|
||||||
|
case ENOMEM:
|
||||||
|
fprintf(stderr, "%s: type is unknown to this program\n",
|
||||||
|
string);
|
||||||
|
return;
|
||||||
|
default:
|
||||||
|
perror(string);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (special & CLOCK) {
|
||||||
|
struct clockinfo *clkp = (struct clockinfo *)buf;
|
||||||
|
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: ", string);
|
||||||
|
fprintf(stdout,
|
||||||
|
"hz = %d, tick = %d, profhz = %d, stathz = %d\n",
|
||||||
|
clkp->hz, clkp->tick, clkp->profhz, clkp->stathz);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (special & BOOTTIME) {
|
||||||
|
struct timeval *btp = (struct timeval *)buf;
|
||||||
|
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s = %s\n", string,
|
||||||
|
ctime(&btp->tv_sec));
|
||||||
|
else
|
||||||
|
fprintf(stdout, "%d\n", btp->tv_sec);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (special & CONSDEV) {
|
||||||
|
dev_t dev = *(dev_t *)buf;
|
||||||
|
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s = %s\n", string,
|
||||||
|
devname(dev, S_IFCHR));
|
||||||
|
else
|
||||||
|
fprintf(stdout, "0x%x\n", dev);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
switch (type) {
|
||||||
|
case CTLTYPE_INT:
|
||||||
|
if (newsize == 0) {
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s = ", string);
|
||||||
|
fprintf(stdout, "%d\n", *(int *)buf);
|
||||||
|
} else {
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: %d -> ", string,
|
||||||
|
*(int *)buf);
|
||||||
|
fprintf(stdout, "%d\n", *(int *)newval);
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
|
||||||
|
case CTLTYPE_STRING:
|
||||||
|
if (newsize == 0) {
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s = ", string);
|
||||||
|
fprintf(stdout, "%s\n", buf);
|
||||||
|
} else {
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: %s -> ", string, buf);
|
||||||
|
fprintf(stdout, "%s\n", newval);
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
|
||||||
|
case CTLTYPE_QUAD:
|
||||||
|
if (newsize == 0) {
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s = ", string);
|
||||||
|
fprintf(stdout, "%qd\n", *(quad_t *)buf);
|
||||||
|
} else {
|
||||||
|
if (!nflag)
|
||||||
|
fprintf(stdout, "%s: %qd -> ", string,
|
||||||
|
*(quad_t *)buf);
|
||||||
|
fprintf(stdout, "%qd\n", *(quad_t *)newval);
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
|
||||||
|
case CTLTYPE_STRUCT:
|
||||||
|
fprintf(stderr, "%s: unknown structure returned\n",
|
||||||
|
string);
|
||||||
|
return;
|
||||||
|
|
||||||
|
default:
|
||||||
|
case CTLTYPE_NODE:
|
||||||
|
fprintf(stderr, "%s: unknown type returned\n",
|
||||||
|
string);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Initialize the set of debugging names
|
||||||
|
*/
|
||||||
|
debuginit()
|
||||||
|
{
|
||||||
|
int mib[3], size, loc, i;
|
||||||
|
|
||||||
|
if (secondlevel[CTL_DEBUG].list != 0)
|
||||||
|
return;
|
||||||
|
secondlevel[CTL_DEBUG].list = debugname;
|
||||||
|
mib[0] = CTL_DEBUG;
|
||||||
|
mib[2] = CTL_DEBUG_NAME;
|
||||||
|
for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) {
|
||||||
|
mib[1] = i;
|
||||||
|
size = BUFSIZ - loc;
|
||||||
|
if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1)
|
||||||
|
continue;
|
||||||
|
debugname[i].ctl_name = &names[loc];
|
||||||
|
debugname[i].ctl_type = CTLTYPE_INT;
|
||||||
|
loc += size;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
struct ctlname inetname[] = CTL_IPPROTO_NAMES;
|
||||||
|
struct ctlname ipname[] = IPCTL_NAMES;
|
||||||
|
struct ctlname icmpname[] = ICMPCTL_NAMES;
|
||||||
|
struct ctlname udpname[] = UDPCTL_NAMES;
|
||||||
|
struct list inetlist = { inetname, IPPROTO_MAXID };
|
||||||
|
struct list inetvars[] = {
|
||||||
|
{ ipname, IPCTL_MAXID }, /* ip */
|
||||||
|
{ icmpname, ICMPCTL_MAXID }, /* icmp */
|
||||||
|
{ 0, 0 }, /* igmp */
|
||||||
|
{ 0, 0 }, /* ggmp */
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 }, /* tcp */
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 }, /* egp */
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 }, /* pup */
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 },
|
||||||
|
{ 0, 0 },
|
||||||
|
{ udpname, UDPCTL_MAXID }, /* udp */
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* handle internet requests
|
||||||
|
*/
|
||||||
|
sysctl_inet(string, bufpp, mib, flags, typep)
|
||||||
|
char *string;
|
||||||
|
char **bufpp;
|
||||||
|
int mib[];
|
||||||
|
int flags;
|
||||||
|
int *typep;
|
||||||
|
{
|
||||||
|
struct list *lp;
|
||||||
|
int indx;
|
||||||
|
|
||||||
|
if (*bufpp == NULL) {
|
||||||
|
listall(string, &inetlist);
|
||||||
|
return (-1);
|
||||||
|
}
|
||||||
|
if ((indx = findname(string, "third", bufpp, &inetlist)) == -1)
|
||||||
|
return (-1);
|
||||||
|
mib[2] = indx;
|
||||||
|
if (indx <= IPPROTO_UDP && inetvars[indx].list != NULL)
|
||||||
|
lp = &inetvars[indx];
|
||||||
|
else if (!flags)
|
||||||
|
return (-1);
|
||||||
|
else {
|
||||||
|
fprintf(stderr, "%s: no variables defined for this protocol\n",
|
||||||
|
string);
|
||||||
|
return (-1);
|
||||||
|
}
|
||||||
|
if (*bufpp == NULL) {
|
||||||
|
listall(string, lp);
|
||||||
|
return (-1);
|
||||||
|
}
|
||||||
|
if ((indx = findname(string, "fourth", bufpp, lp)) == -1)
|
||||||
|
return (-1);
|
||||||
|
mib[3] = indx;
|
||||||
|
*typep = lp->list[indx].ctl_type;
|
||||||
|
return (4);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Scan a list of names searching for a particular name.
|
||||||
|
*/
|
||||||
|
findname(string, level, bufp, namelist)
|
||||||
|
char *string;
|
||||||
|
char *level;
|
||||||
|
char **bufp;
|
||||||
|
struct list *namelist;
|
||||||
|
{
|
||||||
|
char *name;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) {
|
||||||
|
fprintf(stderr, "%s: incomplete specification\n", string);
|
||||||
|
return (-1);
|
||||||
|
}
|
||||||
|
for (i = 0; i < namelist->size; i++)
|
||||||
|
if (namelist->list[i].ctl_name != NULL &&
|
||||||
|
strcmp(name, namelist->list[i].ctl_name) == 0)
|
||||||
|
break;
|
||||||
|
if (i == namelist->size) {
|
||||||
|
fprintf(stderr, "%s level name %s in %s is invalid\n",
|
||||||
|
level, name, string);
|
||||||
|
return (-1);
|
||||||
|
}
|
||||||
|
return (i);
|
||||||
|
}
|
||||||
|
|
||||||
|
usage()
|
||||||
|
{
|
||||||
|
|
||||||
|
(void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n",
|
||||||
|
"sysctl [-n] variable ...", "sysctl [-n] -w variable=value ...",
|
||||||
|
"sysctl [-n] -a", "sysctl [-n] -A");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue