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Move sysctl/ to src/sbin/ where it now belongs.

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Repository copied by:	Peter
This commit is contained in:
David E. O'Brien 1999-05-10 10:17:22 +00:00
parent 458b25e55b
commit ce68c9929a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=46878
7 changed files with 4 additions and 1002 deletions
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3
sbin/Makefile
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@ -1,5 +1,5 @@
# @(#)Makefile 8.5 (Berkeley) 3/31/94
# $Id: Makefile,v 1.67 1999/03/12 15:38:53 brian Exp $
# $Id: Makefile,v 1.68 1999/04/18 15:56:19 peter Exp $
# XXX MISSING: icheck ncheck
@ -57,6 +57,7 @@ SUBDIR= adjkerntz \
slattach \
spppcontrol \
startslip \
sysctl \
swapon \
tunefs \
umount \

5
sbin/sysctl/Makefile
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@ -1,10 +1,7 @@
# @(#)Makefile 8.1 (Berkeley) 6/6/93
# $Id$
# $Id: Makefile,v 1.3 1997/12/18 15:34:08 bde Exp $
PROG= sysctl
MAN8= sysctl.8
BINDIR= /sbin
NOSHARED?= yes
.include <bsd.prog.mk>

3
usr.sbin/Makefile
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@ -1,5 +1,5 @@
# From: @(#)Makefile 5.20 (Berkeley) 6/12/93
# $Id: Makefile,v 1.153 1999/04/28 11:36:28 phk Exp $
# $Id: Makefile,v 1.154 1999/05/05 07:37:03 wpaul Exp $
# XXX MISSING: mkproto
SUBDIR= IPXrouted \
@ -81,7 +81,6 @@ SUBDIR= IPXrouted \
sliplogin \
slstat \
spray \
sysctl \
syslogd \
tcpdchk \
tcpdmatch \

10
usr.sbin/sysctl/Makefile
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@ -1,10 +0,0 @@
# @(#)Makefile 8.1 (Berkeley) 6/6/93
# $Id$
PROG= sysctl
MAN8= sysctl.8
BINDIR= /sbin
NOSHARED?= yes
.include <bsd.prog.mk>

240
usr.sbin/sysctl/pathconf.c
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@ -1,240 +0,0 @@
/*
* 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 const char copyright[] =
"@(#) Copyright (c) 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)pathconf.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/unistd.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.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 findname __P((char *, char *, char**, struct list *));
void listall __P((char *, struct list *));
void parse __P((char *, char *, int));
static void usage __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
char *path;
int ch;
while ((ch = getopt(argc, argv, "Aan")) != -1) {
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.
*/
void
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.
*/
void
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) {
warnx("name %s in %s is unknown", *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:
warnx("%s: value is not available", string);
return;
case ENOTDIR:
warnx("%s: specification is incomplete", string);
return;
case ENOMEM:
warnx("%s: type is unknown to this program", string);
return;
default:
warn("%s", string);
return;
}
}
if (!nflag)
fprintf(stdout, "%s = ", string);
fprintf(stdout, "%d\n", value);
}
/*
* Scan a list of names searching for a particular name.
*/
int
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) {
warnx("%s: incomplete specification", 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) {
warnx("%s level name %s in %s is invalid", level, name, string);
return (-1);
}
return (i);
}
static void
usage()
{
(void)fprintf(stderr, "%s\n%s\n%s\n",
"usage: pathname [-n] variable ...",
" pathname [-n] -a",
" pathname [-n] -A");
exit(1);
}

243
usr.sbin/sysctl/sysctl.8
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@ -1,243 +0,0 @@
.\" 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.
.\"
.\" From: @(#)sysctl.8 8.1 (Berkeley) 6/6/93
.\" $Id: sysctl.8,v 1.17 1998/09/29 02:01:06 jkoshy Exp $
.\"
.Dd September 23, 1994
.Dt SYSCTL 8
.Os
.Sh NAME
.Nm sysctl
.Nd get or set kernel state
.Sh SYNOPSIS
.Nm sysctl
.Op Fl bdn
.Ar name ...
.Nm sysctl
.Op Fl bn
.Fl w
.Ar name=value ...
.Nm sysctl
.Op Fl bdn
.Fl aAX
.Sh DESCRIPTION
The
.Nm
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.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl a
List all the currently available string or integer values.
.It Fl A
List all the known MIB names including opaques.
Those with string or integer values will be printed as with the
.Fl a
flag; for the opaque values,
information about the format and the length is printed in addition the first
few bytes is dumped in hex.
.It Fl X
Same as
.Fl A
except the entire value of opaque variables is hexdumped.
.It Fl n
Specify 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
.It Fl b
Force the value of the variable(s) to be output in raw, binary
format. No names are printed and no terminating newlines are output.
This is mostly useful with a single variable.
.It Fl d
Display the description rather than the value of the requested
variable(s).
.It Fl w Ar name=value ...
Set the MIB
.Ar name
to the new
.Ar value .
If just a MIB style
.Ar name
is given,
the corresponding value is retrieved.
.El
.Pp
The information available from
.Nm
consists of integers, strings, and opaques.
.Nm Sysctl
only knows about a couple of opaque types, and will resort to hexdumps
for the rest.
The opaque information is much more useful if retrieved by special
purpose programs such as
.Nm ps ,
.Nm systat ,
and
.Nm netstat .
.Pp
The string and integer information is summarized below.
For a detailed description of these variable see
.Xr sysctl 3 .
.Pp
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 no
.It kern.maxprocperuid integer yes
.It kern.maxfiles integer yes
.It kern.maxfilesperproc 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.boottime struct no
.It kern.domainname string yes
.It kern.update integer yes
.It kern.osreldate string no
.It kern.bootfile string yes
.It kern.corefile string yes
.It kern.logsigexit integer yes
.It vm.loadavg struct no
.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 hw.floatingpoint integer no
.It hw.machine_arch string no
.It machdep.console_device dev_t no
.It machdep.adjkerntz integer yes
.It machdep.disable_rtc_set integer yes
.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
.It user.stream_max integer no
.It user.tzname_max integer no
.El
.Sh EXAMPLES
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
per uid to 1000, one would use the follow request:
.Bd -literal -offset indent -compact
sysctl -w kern.maxprocperuid=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
.Pp
More variables than these exist, and the best and likely only place
to search for their deeper meaning is undoubtedly the source where
they are defined.
.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 BUGS
.Nm Sysctl
presently exploits an undocumented interface to the kernel
sysctl facility to traverse the sysctl tree and to retrieve format
and name information.
This correct interface is being thought about for the time being.
.Sh HISTORY
.Nm Sysctl
first appeared in
.Bx 4.4 .
.Pp
In
.Fx 2.2 ,
.Nm
was significantly remodeled.

502
usr.sbin/sysctl/sysctl.c
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@ -1,502 +0,0 @@
/*
* 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 const char copyright[] =
"@(#) Copyright (c) 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)from: sysctl.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id: sysctl.c,v 1.19 1998/11/08 19:27:43 phk Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/resource.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static int Aflag, aflag, bflag, dflag, nflag, wflag, Xflag;
static int oidfmt(int *, int, char *, u_int *);
static void parse(char *);
static int show_var(int *, int);
static int sysctl_all (int *oid, int len);
static int name2oid(char *, int *);
static void
usage(void)
{
(void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
"usage: sysctl [-bdn] variable ...",
" sysctl [-bn] -w variable=value ...",
" sysctl [-bdn] -a",
" sysctl [-bdn] -A",
" sysctl [-bdn] -X");
exit(1);
}
int
main(int argc, char **argv)
{
int ch;
setbuf(stdout,0);
setbuf(stderr,0);
while ((ch = getopt(argc, argv, "AabdnwX")) != -1) {
switch (ch) {
case 'A': Aflag = 1; break;
case 'a': aflag = 1; break;
case 'b': bflag = 1; break;
case 'd': dflag = 1; break;
case 'n': nflag = 1; break;
case 'w': wflag = 1; break;
case 'X': Xflag = Aflag = 1; break;
default: usage();
}
}
argc -= optind;
argv += optind;
if (wflag && (Aflag || aflag || dflag))
usage();
if (Aflag || aflag)
exit (sysctl_all(0, 0));
if (argc == 0)
usage();
while (argc-- > 0)
parse(*argv++);
exit(0);
}
/*
* Parse a name into a MIB entry.
* Lookup and print out the MIB entry if it exists.
* Set a new value if requested.
*/
static void
parse(char *string)
{
int len, i, j;
void *newval = 0;
int intval, newsize = 0;
quad_t quadval;
int mib[CTL_MAXNAME];
char *cp, *bufp, buf[BUFSIZ];
u_int kind;
bufp = buf;
snprintf(buf, BUFSIZ, "%s", string);
if ((cp = strchr(string, '=')) != NULL) {
if (!wflag)
errx(2, "must specify -w to set variables");
*strchr(buf, '=') = '\0';
*cp++ = '\0';
while (isspace(*cp))
cp++;
newval = cp;
newsize = strlen(cp);
} else {
if (wflag)
usage();
}
len = name2oid(bufp, mib);
if (len < 0)
errx(1, "unknown oid '%s'", bufp);
if (oidfmt(mib, len, 0, &kind))
err(1, "couldn't find format of oid '%s'", bufp);
if (!wflag) {
if ((kind & CTLTYPE) == CTLTYPE_NODE) {
sysctl_all(mib, len);
} else {
i = show_var(mib, len);
if (!i && !bflag)
putchar('\n');
}
} else {
if ((kind & CTLTYPE) == CTLTYPE_NODE)
errx(1, "oid '%s' isn't a leaf node", bufp);
if (!(kind&CTLFLAG_WR))
errx(1, "oid '%s' is read only", bufp);
switch (kind & CTLTYPE) {
case CTLTYPE_INT:
intval = atoi(newval);
newval = &intval;
newsize = sizeof intval;
break;
break;
case CTLTYPE_STRING:
break;
case CTLTYPE_QUAD:
break;
sscanf(newval, "%qd", &quadval);
newval = &quadval;
newsize = sizeof quadval;
break;
default:
errx(1, "oid '%s' is type %d,"
" cannot set that", bufp,
kind & CTLTYPE);
}
i = show_var(mib, len);
if (sysctl(mib, len, 0, 0, newval, newsize) == -1) {
if (!i && !bflag)
putchar('\n');
switch (errno) {
case EOPNOTSUPP:
errx(1, "%s: value is not available",
string);
case ENOTDIR:
errx(1, "%s: specification is incomplete",
string);
case ENOMEM:
errx(1, "%s: type is unknown to this program",
string);
default:
warn("%s", string);
return;
}
}
if (!bflag)
printf(" -> ");
i = nflag;
nflag = 1;
j = show_var(mib, len);
if (!j && !bflag)
putchar('\n');
nflag = i;
}
}
/* These functions will dump out various interesting structures. */
static int
S_clockinfo(int l2, void *p)
{
struct clockinfo *ci = (struct clockinfo*)p;
if (l2 != sizeof *ci)
err(1, "S_clockinfo %d != %d", l2, sizeof *ci);
printf("{ hz = %d, tick = %d, tickadj = %d, profhz = %d, stathz = %d }",
ci->hz, ci->tick, ci->tickadj, ci->profhz, ci->stathz);
return (0);
}
static int
S_loadavg(int l2, void *p)
{
struct loadavg *tv = (struct loadavg*)p;
if (l2 != sizeof *tv)
err(1, "S_loadavg %d != %d", l2, sizeof *tv);
printf("{ %.2f %.2f %.2f }",
(double)tv->ldavg[0]/(double)tv->fscale,
(double)tv->ldavg[1]/(double)tv->fscale,
(double)tv->ldavg[2]/(double)tv->fscale);
return (0);
}
static int
S_timeval(int l2, void *p)
{
struct timeval *tv = (struct timeval*)p;
time_t tv_sec;
char *p1, *p2;
if (l2 != sizeof *tv)
err(1, "S_timeval %d != %d", l2, sizeof *tv);
printf("{ sec = %ld, usec = %ld } ",
tv->tv_sec, tv->tv_usec);
tv_sec = tv->tv_sec;
p1 = strdup(ctime(&tv_sec));
for (p2=p1; *p2 ; p2++)
if (*p2 == '\n')
*p2 = '\0';
fputs(p1, stdout);
return (0);
}
static int
T_dev_t(int l2, void *p)
{
dev_t *d = (dev_t *)p;
if (l2 != sizeof *d)
err(1, "T_dev_T %d != %d", l2, sizeof *d);
printf("{ major = %d, minor = %d }",
major(*d), minor(*d));
return (0);
}
/*
* These functions uses a presently undocumented interface to the kernel
* to walk the tree and get the type so it can print the value.
* This interface is under work and consideration, and should probably
* be killed with a big axe by the first person who can find the time.
* (be aware though, that the proper interface isn't as obvious as it
* may seem, there are various conflicting requirements.
*/
static int
name2oid(char *name, int *oidp)
{
int oid[2];
int i;
size_t j;
oid[0] = 0;
oid[1] = 3;
j = CTL_MAXNAME * sizeof (int);
i = sysctl(oid, 2, oidp, &j, name, strlen(name));
if (i < 0)
return i;
j /= sizeof (int);
return (j);
}
static int
oidfmt(int *oid, int len, char *fmt, u_int *kind)
{
int qoid[CTL_MAXNAME+2];
u_char buf[BUFSIZ];
int i;
size_t j;
qoid[0] = 0;
qoid[1] = 4;
memcpy(qoid + 2, oid, len * sizeof(int));
j = sizeof buf;
i = sysctl(qoid, len + 2, buf, &j, 0, 0);
if (i)
err(1, "sysctl fmt %d %d %d", i, j, errno);
if (kind)
*kind = *(u_int *)buf;
if (fmt)
strcpy(fmt, (char *)(buf + sizeof(u_int)));
return 0;
}
/*
* This formats and outputs the value of one variable
*
* Returns zero if anything was actually output.
* Returns one if didn't know what to do with this.
* Return minus one if we had errors.
*/
static int
show_var(int *oid, int nlen)
{
u_char buf[BUFSIZ], *val, *p;
char name[BUFSIZ], descr[BUFSIZ], *fmt;
int qoid[CTL_MAXNAME+2];
int i;
size_t j, len;
u_int kind;
int (*func)(int, void *) = 0;
qoid[0] = 0;
memcpy(qoid + 2, oid, nlen * sizeof(int));
qoid[1] = 1;
j = sizeof name;
i = sysctl(qoid, nlen + 2, name, &j, 0, 0);
if (i || !j)
err(1, "sysctl name %d %d %d", i, j, errno);
if (dflag) {
qoid[1] = 5;
j = sizeof descr;
i = sysctl(qoid, nlen + 2, descr, &j, 0, 0);
if (i || !j)
err(1, "sysctl name %d %d %d", i, j, errno);
if (!nflag)
printf("%s: ", name);
printf("%s", descr[0] ? descr : "[no description]");
return (0);
}
/* find an estimate of how much we need for this var */
j = 0;
i = sysctl(oid, nlen, 0, &j, 0, 0);
j += j; /* we want to be sure :-) */
val = alloca(j);
len = j;
i = sysctl(oid, nlen, val, &len, 0, 0);
if (i || !len)
return (1);
if (bflag) {
fwrite(val, 1, len, stdout);
return (0);
}
qoid[1] = 4;
j = sizeof buf;
i = sysctl(qoid, nlen + 2, buf, &j, 0, 0);
if (i || !j)
err(1, "sysctl fmt %d %d %d", i, j, errno);
kind = *(u_int *)buf;
fmt = (char *)(buf + sizeof(u_int));
p = val;
switch (*fmt) {
case 'A':
if (!nflag)
printf("%s: ", name);
printf("%s", p);
return (0);
case 'I':
if (!nflag)
printf("%s: ", name);
val = "";
while (len >= sizeof(int)) {
printf("%s%d", val, *(int *)p);
val = " ";
len -= sizeof (int);
p += sizeof (int);
}
return (0);
case 'L':
if (!nflag)
printf("%s: ", name);
printf("%ld", *(long *)p);
return (0);
case 'P':
if (!nflag)
printf("%s: ", name);
printf("%p", *(void **)p);
return (0);
case 'T':
case 'S':
i = 0;
if (!strcmp(fmt, "S,clockinfo")) func = S_clockinfo;
else if (!strcmp(fmt, "S,timeval")) func = S_timeval;
else if (!strcmp(fmt, "S,loadavg")) func = S_loadavg;
else if (!strcmp(fmt, "T,dev_t")) func = T_dev_t;
if (func) {
if (!nflag)
printf("%s: ", name);
return ((*func)(len, p));
}
/* FALL THROUGH */
default:
if (!Aflag)
return (1);
if (!nflag)
printf("%s: ", name);
printf("Format:%s Length:%d Dump:0x", fmt, len);
while (len--) {
printf("%02x", *p++);
if (Xflag || p < val+16)
continue;
printf("...");
break;
}
return (0);
}
return (1);
}
static int
sysctl_all (int *oid, int len)
{
int name1[22], name2[22];
int i, j;
size_t l1, l2;
name1[0] = 0;
name1[1] = 2;
l1 = 2;
if (len) {
memcpy(name1+2, oid, len*sizeof (int));
l1 += len;
} else {
name1[2] = 1;
l1++;
}
while (1) {
l2 = sizeof name2;
j = sysctl(name1, l1, name2, &l2, 0, 0);
if (j < 0)
if (errno == ENOENT)
return 0;
else
err(1, "sysctl(getnext) %d %d", j, l2);
l2 /= sizeof (int);
if (l2 < len)
return 0;
for (i = 0; i < len; i++)
if (name2[i] != oid[i])
return 0;
i = show_var(name2, l2);
if (!i && !bflag)
putchar('\n');
memcpy(name1+2, name2, l2*sizeof (int));
l1 = 2 + l2;
}
}