sysctl-of-fish
This commit is contained in:
cgd
parent
5a9cb8543e
commit
810b121377
|
|
@ -0,0 +1,6 @@
|
|||
# @(#)Makefile 8.1 (Berkeley) 6/6/93
|
||||
|
||||
PROG= sysctl
|
||||
MAN8= sysctl.0
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
|
|
@ -0,0 +1,229 @@
|
|||
/*
|
||||
* 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[] = "@(#)pathconf.c 8.1 (Berkeley) 6/6/93";
|
||||
#endif /* not lint */
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/sysctl.h>
|
||||
#include <sys/unistd.h>
|
||||
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#define PC_NAMES { \
|
||||
{ 0, 0 }, \
|
||||
{ "link_max", CTLTYPE_INT }, \
|
||||
{ "max_canon", CTLTYPE_INT }, \
|
||||
{ "max_input", CTLTYPE_INT }, \
|
||||
{ "name_max", CTLTYPE_INT }, \
|
||||
{ "path_max", CTLTYPE_INT }, \
|
||||
{ "pipe_buf", CTLTYPE_INT }, \
|
||||
{ "chown_restricted", CTLTYPE_INT }, \
|
||||
{ "no_trunc", CTLTYPE_INT }, \
|
||||
{ "vdisable", CTLTYPE_INT }, \
|
||||
}
|
||||
#define PC_MAXID 10
|
||||
|
||||
struct ctlname pcnames[] = PC_NAMES;
|
||||
char names[BUFSIZ];
|
||||
|
||||
struct list {
|
||||
struct ctlname *list;
|
||||
int size;
|
||||
};
|
||||
struct list pclist = { pcnames, PC_MAXID };
|
||||
|
||||
int Aflag, aflag, nflag, wflag, stdinflag;
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{
|
||||
extern char *optarg;
|
||||
extern int optind;
|
||||
char *path;
|
||||
int ch;
|
||||
|
||||
while ((ch = getopt(argc, argv, "Aan")) != EOF) {
|
||||
switch (ch) {
|
||||
|
||||
case 'A':
|
||||
Aflag = 1;
|
||||
break;
|
||||
|
||||
case 'a':
|
||||
aflag = 1;
|
||||
break;
|
||||
|
||||
case 'n':
|
||||
nflag = 1;
|
||||
break;
|
||||
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (argc == 0)
|
||||
usage();
|
||||
path = *argv++;
|
||||
if (strcmp(path, "-") == 0)
|
||||
stdinflag = 1;
|
||||
argc--;
|
||||
if (Aflag || aflag) {
|
||||
listall(path, &pclist);
|
||||
exit(0);
|
||||
}
|
||||
if (argc == 0)
|
||||
usage();
|
||||
while (argc-- > 0)
|
||||
parse(path, *argv, 1);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* List all variables known to the system.
|
||||
*/
|
||||
listall(path, lp)
|
||||
char *path;
|
||||
struct list *lp;
|
||||
{
|
||||
int lvl2;
|
||||
|
||||
if (lp->list == 0)
|
||||
return;
|
||||
for (lvl2 = 0; lvl2 < lp->size; lvl2++) {
|
||||
if (lp->list[lvl2].ctl_name == 0)
|
||||
continue;
|
||||
parse(path, lp->list[lvl2].ctl_name, Aflag);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Parse a name into an index.
|
||||
* Lookup and print out the attribute if it exists.
|
||||
*/
|
||||
parse(pathname, string, flags)
|
||||
char *pathname;
|
||||
char *string;
|
||||
int flags;
|
||||
{
|
||||
int indx, value;
|
||||
char *bufp, buf[BUFSIZ];
|
||||
|
||||
bufp = buf;
|
||||
snprintf(buf, BUFSIZ, "%s", string);
|
||||
if ((indx = findname(string, "top", &bufp, &pclist)) == -1)
|
||||
return;
|
||||
if (bufp) {
|
||||
fprintf(stderr, "name %s in %s is unknown\n", *bufp, string);
|
||||
return;
|
||||
}
|
||||
if (stdinflag)
|
||||
value = fpathconf(0, indx);
|
||||
else
|
||||
value = pathconf(pathname, indx);
|
||||
if (value == -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 (!nflag)
|
||||
fprintf(stdout, "%s = ", string);
|
||||
fprintf(stdout, "%d\n", value);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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",
|
||||
"pathname [-n] variable ...",
|
||||
"pathname [-n] -a", "pathname [-n] -A");
|
||||
exit(1);
|
||||
}
|
||||
|
|
@ -0,0 +1,208 @@
|
|||
.\" 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.
|
||||
.\"
|
||||
.\" @(#)sysctl.8 8.1 (Berkeley) 6/6/93
|
||||
.\"
|
||||
.Dd "June 6, 1993"
|
||||
.Dt SYSCTL 8
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm sysctl
|
||||
.Nd get or set kernel state
|
||||
.Sh SYNOPSIS
|
||||
.Nm sysctl
|
||||
.Op Fl n
|
||||
.Ar name ...
|
||||
.Nm sysctl
|
||||
.Op Fl n
|
||||
.Fl w
|
||||
.Ar name=value ...
|
||||
.Nm sysctl
|
||||
.Op Fl n
|
||||
.Fl aA
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm sysctl
|
||||
utility retrieves kernel state and allows processes with
|
||||
appropriate privilege to set kernel state.
|
||||
The state to be retrieved or set is described using a
|
||||
``Management Information Base'' (``MIB'') style name,
|
||||
described as a dotted set of components.
|
||||
The
|
||||
.Fl a
|
||||
flag can be used to list all the currently available string or integer values.
|
||||
The
|
||||
.Fl A
|
||||
flag will list all the known MIB names including tables.
|
||||
Those with string or integer values will be printed as with the
|
||||
.Fl a
|
||||
flag; for the table values,
|
||||
the name of the utility to retrieve them is given.
|
||||
.Pp
|
||||
The
|
||||
.Fl n
|
||||
flag specifies that the printing of the field name should be
|
||||
suppressed and that only its value should be output.
|
||||
This flag is useful for setting shell variables.
|
||||
For example, to save the pagesize in variable psize, use:
|
||||
.Bd -literal -offset indent -compact
|
||||
set psize=`sysctl -n hw.pagesize`
|
||||
.Ed
|
||||
.Pp
|
||||
If just a MIB style name is given,
|
||||
the corresponding value is retrieved.
|
||||
If a value is to be set, the
|
||||
.Fl w
|
||||
flag must be specified and the MIB name followed
|
||||
by an equal sign and the new value to be used.
|
||||
.Pp
|
||||
The information available from
|
||||
.Nm sysctl
|
||||
consists of integers, strings, and tables.
|
||||
The tabular information can only be retrieved by special
|
||||
purpose programs such as
|
||||
.Nm ps ,
|
||||
.Nm systat ,
|
||||
and
|
||||
.Nm netstat .
|
||||
The string and integer information is summaried below.
|
||||
For a detailed description of these variable see
|
||||
.Xr sysctl 3 .
|
||||
The changeable column indicates whether a process with appropriate
|
||||
privilege can change the value.
|
||||
.Bl -column net.inet.ip.forwardingxxxxxx integerxxx
|
||||
.It Sy Name Type Changeable
|
||||
.It kern.ostype string no
|
||||
.It kern.osrelease string no
|
||||
.It kern.osrevision integer no
|
||||
.It kern.version string no
|
||||
.It kern.maxvnodes integer yes
|
||||
.It kern.maxproc integer yes
|
||||
.It kern.maxfiles integer yes
|
||||
.It kern.argmax integer no
|
||||
.It kern.securelevel integer raise only
|
||||
.It kern.hostname string yes
|
||||
.It kern.hostid integer yes
|
||||
.It kern.clockrate struct no
|
||||
.It kern.posix1version integer no
|
||||
.It kern.ngroups integer no
|
||||
.It kern.job_control integer no
|
||||
.It kern.saved_ids integer no
|
||||
.It kern.link_max integer no
|
||||
.It kern.max_canon integer no
|
||||
.It kern.max_input integer no
|
||||
.It kern.name_max integer no
|
||||
.It kern.path_max integer no
|
||||
.It kern.pipe_buf integer no
|
||||
.It kern.chown_restricted integer no
|
||||
.It kern.no_trunc integer no
|
||||
.It kern.vdisable integer no
|
||||
.It kern.boottime struct no
|
||||
.It vm.loadavg struct no
|
||||
.It machdep.console_device dev_t no
|
||||
.It net.inet.ip.forwarding integer yes
|
||||
.It net.inet.ip.redirect integer yes
|
||||
.It net.inet.ip.ttl integer yes
|
||||
.It net.inet.icmp.maskrepl integer yes
|
||||
.It net.inet.udp.checksum integer yes
|
||||
.It hw.machine string no
|
||||
.It hw.model string no
|
||||
.It hw.ncpu integer no
|
||||
.It hw.byteorder integer no
|
||||
.It hw.physmem integer no
|
||||
.It hw.usermem integer no
|
||||
.It hw.pagesize integer no
|
||||
.It user.cs_path string no
|
||||
.It user.bc_base_max integer no
|
||||
.It user.bc_dim_max integer no
|
||||
.It user.bc_scale_max integer no
|
||||
.It user.bc_string_max integer no
|
||||
.It user.coll_weights_max integer no
|
||||
.It user.expr_nest_max integer no
|
||||
.It user.line_max integer no
|
||||
.It user.re_dup_max integer no
|
||||
.It user.posix2_version integer no
|
||||
.It user.posix2_c_bind integer no
|
||||
.It user.posix2_c_dev integer no
|
||||
.It user.posix2_char_term integer no
|
||||
.It user.posix2_fort_dev integer no
|
||||
.It user.posix2_fort_run integer no
|
||||
.It user.posix2_localedef integer no
|
||||
.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