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125 Commits

Author SHA1 Message Date
ru
a91c39740f While convenient, avoid using alloca() for reasons specified in 
the BUGS section of the alloca(3) manpage.  In particular, when
the number of TCP sockets is several tens of thousand, trying to
"sysctl -a" would SIGSEGV on the net.inet.tcp.pcblist entry (it
would exceed the stacksize ulimit, in an undetectable manner).

Reported by:	Igor Sysoev
 2006-09-06 20:15:43 +00:00
ume
d5da60dc31 Support Celsius (nn.nC), Fahrenheit (nn.nF) and Kelvin (nnnn) to 
specify temperature.

Reviewed by:	njl
MFC after:	3 days
 2006-09-03 15:10:04 +00:00
ru
a6794a47d1 Fix printing of integer Kelvins broken in rev. 1.71, which is 
fatal on sizeof(int) != sizeof(long) systems (such as amd64).

MFC after:	1 day
 2006-08-15 13:32:39 +00:00
obrien
f6dcb46835 Add an extension to the UINT & ULONG types. The XINT & XLONG types behave 
the same, except sysctl(8) will print out the values in hex.
 2006-08-12 23:33:10 +00:00
njl
844254bd87 Use floating point instead of hacking something together. Suggested by 
bde@.  Fix nearby int conversion and a couple style bugs.

MFC after:	1 day
 2006-08-04 07:31:55 +00:00
njl
bfbd4eba2c Fix printing of negative decimal values in Kelvin to Celsius conversion. 
MFC after:	3 days
 2006-07-25 02:28:43 +00:00
ru
fe33e2f3a0 Add -q to usage(). 2005-12-01 21:59:24 +00:00
ru
4de1ee30af -mdoc sweep. 2005-11-18 10:36:29 +00:00
rwatson
f62b675f2b Add "-q" argument to sysctl(8), which suppresses a limited set of warnings/ 
errors generated.  In particular, it suppresses "unknown oid" when
attempting to get or set a sysctl not present in the kernel.

MFC after:	1 week
 2005-09-15 16:08:04 +00:00
brueffer
2a75eb6afb - Remove MLINKS to nonexistant manpages 
- Change some section numbers to match reality
- For MLINKS to manpages from ports, mention which port installs them

MFC after:	3 days
 2005-07-14 20:29:08 +00:00
mdodd
4aeb6a67e2 Show descriptions for type CTLTYPE_NODES. 2005-04-13 06:59:07 +00:00
mdodd
d7cdbc0750 Zero buffers. Seatbelt against sysctl(3) returning non-NUL terminated 
string data.
 2005-04-13 06:56:31 +00:00
ru
719be5d341 Sync program's usage() with manpage's SYNOPSIS. 2005-02-10 09:19:34 +00:00
ssouhlal
cae4e5e935 Get rid of a NULL dereference when oid is too long. 
Reviewed by:	keramida
Approved by:	grehan (mentor)
MFC after:	1 week
 2005-01-25 14:37:43 +00:00
ru
13fe9ea5a2 Sort sections. 2005-01-18 10:09:38 +00:00
ru
c56f1c1871 Scheduled mdoc(7) sweep. 2005-01-10 16:17:34 +00:00
hmp
8f9a2ff959 Code for automatic name completion in a tcsh(1) environment. 
PR:		docs/44435
Submitted by:	Slaven Rezic slaven dot rezic at berlin dot de
 2004-12-05 23:44:52 +00:00
le
91a280661a Use correct format string. 
Submitted by:   ssouhlal
 2004-09-17 17:08:44 +00:00
peter
78508cab26 Add a suffix descriptor for the acpi thermal values as a hint for the userland 
sysctl tool to print a more readable value for temperatures.
 2004-08-30 22:42:10 +00:00
markm
90f91e7879 Remove advertising clause from University of California Regent's license, 
per letter dated July 22, 1999.

Approved by: core, imp
 2004-04-09 19:58:40 +00:00
dd
ae9f26fffc Add CTLTYPE_QUAD to the list of types for which we don't want an empty 
value.  All the other numeric types are doing it . . .
 2004-03-02 05:42:52 +00:00
johan
31854a224a style.Makefile(5): 
Use WARNS?= instead of WARNS=.
 2004-02-23 20:25:27 +00:00
des
3ae98c3080 Alphabetization braino. 
Pointed out by:	johan
 2003-11-07 21:28:29 +00:00
des
0fe3c6c774 Whitespace cleanup. 2003-11-07 16:41:47 +00:00
des
cc86362753 Add a command-line option to format output for human readability. 
Currently, the only effect it has is to print some (but not all) numbers
using thousands separators.
 2003-11-07 16:33:45 +00:00
silby
2cedc070de Fix a few style glitches in the previous commit and make the 
tunable error message more brief.

Suggested by:	bde
 2003-11-01 07:06:04 +00:00
peter
96896379b8 Fix a 64 bit warning. Have set_T_dev_t() take a pointer to a size_t rather 
than a pointer to an int, since that is what it really wants anyway.
 2003-10-26 04:45:08 +00:00
silby
42091b18e2 Wrap a long line in the previous commit 
Suggested by:	njl
 2003-10-21 18:48:49 +00:00
silby
62679efced Have sysctl print out a more useful error message when it detects that the 
user has attempted to write to a read only, tunable value.
 2003-10-21 16:49:30 +00:00
ru
1c23ef339b mdoc(7): Use the new feature of the .In macro. 2003-09-08 19:57:22 +00:00
rwatson
0980582084 Tighten up the string->integer conversion in sysctl(8): 
(1) Reject zero-length strings for CTLTYPE_INT, _UINT, _LONG,
    _ULONG.  Do not silently convert to 0.

(2) When converting CTLTYPE_INT, _UINT, _LONG, and _ULONG, check the
    end pointer generated by strtol() and strtoul() rather than
    discarding it.  Reject the string if either none of the string
    was useful for conversion to an integer, or if there was
    trailing garbage.

I.e., we will not allow you to set a numeric sysctl to a value unless
we can completely convert the string argument to a numeric value.
I tripped over this when I put the following in /etc/sysctl.conf:

   kern.maxfiles="4000"

Ouch.
 2003-06-15 06:26:08 +00:00
charnier
ac0a573e87 .Nm -> .Xr 2003-06-08 12:57:39 +00:00
brueffer
01516ccfd4 Clarify setting sysctl variables via loader(8) tunables 
* s/can not/cannot/

Submitted by:	ru (*)
Approved by:	re (rwatson)
 2003-05-18 00:27:02 +00:00
brueffer
f8918f9a1c Add information about setting sysctl variables via loader(8) and 
loader.conf(5)

PR:		38426 (slightly modified)
Submitted by:	Phil Pennock <pdp@nl.demon.net>
Approved by:	re (bmah)
MFC after:	3 days
 2003-05-17 01:01:03 +00:00
tjr
12e53fb981 This file does not seem to serve any purpose. It has never been hooked up 
to the build, and performs a subset of the functionality that the getconf(1)
utility performs.
 2003-04-28 00:38:48 +00:00
phk
383d50b298 Output machdep.guessed_bootdev as an integer rather than try to format 
it according to ancient and obsolete rules.

This removes one more user of <sys/diskslice.h>
 2003-04-03 21:41:14 +00:00
peter
568a1c8f96 Fix what I think is an off-by-one in certain worst-case scenarios 
caused by rev 1.45.  (eg: the estimate being exactly half of the result.)
 2003-01-22 00:34:22 +00:00
dillon
8eb42e5ece Cleanup the formatting from the last commit, convert everything to 
a more human-readable 'kilobytes' instead of pages.
 2003-01-11 20:03:43 +00:00
dillon
187e654d9a Make 'sysctl vm.vmtotal' work properly using updated patch from Hiten. 
(the patch in the PR was stale).

PR:             kern/5689
Submitted by:   Hiten Pandya <hiten@unixdaemons.com>
 2003-01-11 07:29:47 +00:00
peter
06cee96130 Fix a "bug" in sysctl(8). Limit the length when we print a string from 
the kernel rather than ignoring the length and keeping on going till we
finally hit a \0 character in the buffer.
 2002-11-12 21:18:21 +00:00
charnier
4966efff7b Replace various spelling with FALLTHROUGH which is lint()able 2002-08-25 13:10:45 +00:00
charnier
a82970a04e The .Nm utility. 2002-07-06 19:35:14 +00:00
alfred
67cc400f56 Don't err(3) (and exit prematurely) when a sysctl's object size has 
changed, instead just warn(3)
 2002-05-24 08:34:18 +00:00
ache
c5c443997d Don't forget to null-terminate string we got from sysctl (f.e. in 'A' format). 
Stack garbadge may be printed otherwise.
 2002-05-08 23:49:19 +00:00
phk
ed0cd9a251 Take the "tickadj" element out of struct clockinfo. Our adjtime(2) 
implementation is being changed and the very concept of tickadj will
no longer be meaningful.
 2002-04-15 12:11:06 +00:00
imp
ec2a00af74 o remove __P 
o remove main prototype
 2002-03-21 13:20:49 +00:00
ru
2df66aa557 mdoc(7) police: tiny fixes. 2002-03-15 15:07:39 +00:00
luigi
89ee13ec01 Document the existence of machdep.guessed_bootdev, as suggested 
by Sheldon.
For a detailed description look at the commit log for sysctl.c
rev.1.42 -- i do not think it is appropriate to put the full
description in this manpage, and the "boot" and "loader" manpages
where this description might go are also missing a description of
a number of similar variables, so i think this it is ok to limit
documentation to this now, and update it later when I (or someone
else) have a chance to revise "boot" and "loader".
 2002-03-12 13:55:19 +00:00
luigi
610055212c Make the handling of machdep.guessed_bootdev compiled on i386 only. 2002-03-11 06:50:28 +00:00
luigi
ad77debfc5 Export a (machine dependent) kernel variable bootdev as 
machdep.guessed_bootdev, and add code to sysctl to parse its value
and give a (not necessarily correct) name to the device we booted
from (the main motivation for this code is to use the info in the
PicoBSD boot scripts, and the impact on the kernel is minimal).

NOTE: the information available in bootdev is not always reliable,
so you should not trust it too much.  The parsing code is the same
as in boot2.c, and cannot cover all cases -- as it is, it seems to
work fine with floppies and IDE disks recognised by the BIOS. It
_should_ work as well with SCSI disks recognised by the BIOS.
Booting from a CDROM in floppy emulation will return /dev/fd0 (because
this is what the BIOS tells us).
Booting off the network (e.g. with etherboot) leaves bootdev unset so
the value will be printed as "invalid (0xffffffff)".

Finally, this feature might go away at some point, hopefully when we
have a more reliable way to get the same information.

MFC-after: 5 days
 2002-03-10 20:08:44 +00:00