As discussed on tech-userlevel: enhance the -A/-U commands to take a -t
auto flag, which queries all local harddisks for swap partitions/
wedges and adds/removes them as swap device, a -f option to use the
first found swap device as dump device, and a -o option to only
auto-configure the dump device, but leave swap alone.

Add a -n option to make swapctl only say what it would do, but not
change any system state.

Move WARNS=3 to the Makefile.inc, and add a little const to the remaining
programs that did not compile before.

Kill __P(), use ANSI function declarations, constify; WARNS=3.

Reviewed by mrg@.

link to swapon.

branches: 1.1.1;
Initial revision

s/point mount/mount point/

branches: 1.45.2;
update my email address.

Merge riastradh-drm2 to HEAD.

Use Mt for email addresses.

branches: 1.42.4; 1.42.10; 1.42.14;
Clarify placement of commas. From Snader_LB on freenode/#netbsd-code.

Make the exit status from "swapctl -A" and "swapctl -U" tri-state:
0 for success; 1 for error; and 2 when no devices of the appropriate type
are defined in fstab(5). Previously, "no apropriate devices" was
indistinguishable from "error".

remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.39.10; 1.39.12; 1.39.14; 1.39.16;
Re-phrase description of -A option, as per suggestion from Jukka Salmi
at netbsd-users@ and with a slight tweak by myself -- at the end the last
dump device will remain as the single active dump device.
Fix a nearby typo.
Bump date.

Sort sections. Fix typo. Start sentence with upper-case letter.

Add a caveats section describing potential problems with autoconfigured
swap partitons.

As discussed on tech-userlevel: enhance the -A/-U commands to take a -t
auto flag, which queries all local harddisks for swap partitions/
wedges and adds/removes them as swap device, a -f option to use the
first found swap device as dump device, and a -o option to only
auto-configure the dump device, but leave swap alone.

Add a -n option to make swapctl only say what it would do, but not
change any system state.

Sort options. Sync usage with man page.

Sort sections. Fix typos.

Only one -D synopsis line

Allow unsetting the dump device via "swapctl -D none".
For -l (list swap partitions) and -z (list dump device) return a usefull
error status, so scripts can easily decide if swap or dump are configured.

Drop trailing whitespace.

Add options for swapon in the Synopsis section. Closes PR#25866 from
Kouichirou Hiratsuka.

branches: 1.29.2;
bump date for previous

support "-g" and "-m" as well as "-k" and "-h". swapctl & swaplist code
from Martin Weber, adapted for pstat by myself.

add a "-h" (humanize_number(3)) option to swapctl(8) and pstat(8), from
Martin Weber in PR#23805.

ps: now we only need someone to do ls(1) :-)

.Nm does not need a dummy argument ("") before punctuation or
for correct formatting of the SYNOPSIS any longer.

Mention that the mount point for a remote swap file must exist as a directory.
Sanity checked by salo.

New sentence, new line. Use some more mdoc.

Generate <>& symbolically. I'm avoiding .../dist/... directories for now.

Sort sections, use standard section headers.

Remove swapoff mention, per misc/14120.
Some whitespace, section name, section order fixes while I'm here.

Drop arguments of .Os.

add a section on swap priorities. document the round robin scheme.
fixes half of PR#12610.

support new `swapctl -z' that shows the dump device.

* add support for -U, which is the opposite of -A (i.e, it unconfigures
all swap devices in /etc/fstab).
* fix description of -D

swapctl(SWAP_OFF, ...) now works.

add a new fstab type "dp" for the user-specified dump device.
change swapctl -A to see this and add it via swapctl(2). also
add a new swapctl -D <device> to change the dump device on the
fly.

sort entries and delete extra periods in SEE also section.

make swapctl exit with non-zero if -A and nothing swapped on

Typo corrections.

add missing .Nm sections.

oops; forgot to update the license here.

branches: 1.9.2;
Fix .Nm usage.

* fix .Nm usage
* prototype main() for WARNS=1

note that swapoff is unsupported; from Brian Grayson in PR misc/3930

move -t option to stand on its own and change a bit.
add a WARNINGS about the dangers of running without swap or only using
swap files if you have local disk to fsck.

Add a "-t blk|noblk" device type option to swapctl -A. This allows the
user to specify "only add block devices" or "only add non-block devices".
This is useful during early system startup where swapping may be needed
before swap files are available (e.g. if fsck'ing large file systems).

note what N in priority=N means.

make option lists much clearer.

document nfsmntpt option, re-arrange a little.

branches: 1.1.1;
Initial revision

Fix a typo in a newly added comment.

Someone please tell me why these things become obvious only after
the code has been committed!

NFC

When processing swapon -a (or swapctl -A, or swapctl -U) ignore lines in
fstab that have nothing to do with swapping (fs_type is neither "sw" nor "dp")
before running getfsspecname() on the fs_spec field of the line.

This avoids entries like this:

NAME=OFTEN_UNCONNECTED /local/archived ffs rw,log,noauto 0 0

in fstab from generating spurious error messages when the wedge named
is not currently connected to the system - that is the drive on which the
wedge exists is not connected, or not powered on. "noauto" handles that
for some other uses, the "0"s in fs_freq and fs_passno work for other uses,
but swap{on,ctl} never look at those fields (not for this purpose).

Non "sw"/"dp" lines were being ignored anyway, but not until (a little) later.

fix various typos, mainly in comments.

don't stop processing /etc/fstab when one entry fails, both for
add and remove loops. now when you add a new swap file and run
"swapctl -A" it won't give up after the existing one gives EBUSY
and move on to the rest.

Explicitly include sys/ioctl.h

Allow named wedges to be used on command line, also fix name lookup
for the dump device.

branches: 1.37.2;
use getfsspecname()

branches: 1.36.2;
static + __dead

Make the exit status from "swapctl -A" and "swapctl -U" tri-state:
0 for success; 1 for error; and 2 when no devices of the appropriate type
are defined in fstab(5). Previously, "no apropriate devices" was
indistinguishable from "error".

fix dev_t format.

remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.32.18; 1.32.20; 1.32.22;
As discussed on tech-userlevel: enhance the -A/-U commands to take a -t
auto flag, which queries all local harddisks for swap partitions/
wedges and adds/removes them as swap device, a -f option to use the
first found swap device as dump device, and a -o option to only
auto-configure the dump device, but leave swap alone.

Add a -n option to make swapctl only say what it would do, but not
change any system state.

Sort options. Sync usage with man page.

Allow unsetting the dump device via "swapctl -D none".
For -l (list swap partitions) and -z (list dump device) return a usefull
error status, so scripts can easily decide if swap or dump are configured.

Remove some const. This is better than using __UNCONST at the second
argument of swapctl.

Kill __P(), use ANSI function declarations, constify; WARNS=3.

Reviewed by mrg@.

support RESCUEDIR (for mount_nfs and umount)

Fix usage string (i.e. add information about -z). Fixes PR#25865 from
Kouichirou Hiratsuka.

branches: 1.25.2;
support "-g" and "-m" as well as "-k" and "-h". swapctl & swaplist code
from Martin Weber, adapted for pstat by myself.

add a "-h" (humanize_number(3)) option to swapctl(8) and pstat(8), from
Martin Weber in PR#23805.

ps: now we only need someone to do ls(1) :-)

The 3rd argument to swapctl() is an int, don't pass NULL in it.

Add NetBSD RCS Ids.

print something sensible on -z if no dump device is set

Support 'dp' as mount option for 'sw' fstype, so it DTRT for entries like:
/dev/wd0b none swap sw,dp 0 0

Add word "WARNING" when complaining about swap being world-read/writeable
to clarify that this was not an error condition and that swap was indeed
added despite the problem.

convert to use getprogname()

fix incorrect comment; -d does work!

support new `swapctl -z' that shows the dump device.

warnx?/errx? audit. don't pass variable/function return value alone.
use with "%s". from openbsd.

branches: 1.14.4;
use <sys/swap.h>. should have happened years ago.

Fix doubled 'the's.

* add support for -U, which is the opposite of -A (i.e, it unconfigures
all swap devices in /etc/fstab).
* fix description of -D

add a -D line to usage().

add a new fstab type "dp" for the user-specified dump device.
change swapctl -A to see this and add it via swapctl(2). also
add a new swapctl -D <device> to change the dump device on the
fly.

const poisoning.

make swapctl exit with non-zero if -A and nothing swapped on

remove advertising clause from all my licenses.

* fix .Nm usage
* prototype main() for WARNS=1

add comparisons to NULL implicit in my last changes

Add a "-t blk|noblk" device type option to swapctl -A. This allows the
user to specify "only add block devices" or "only add non-block devices".
This is useful during early system startup where swapping may be needed
before swap files are available (e.g. if fsck'ing large file systems).

include <err.h> for err*() and warn*() prototypes
cast long to int for use by printf("%d",..)
add parens for gcc -Wall

Totally rework the command parsing, eliminating a few walk-offs of
bogus pointers, etc.

branches: 1.1.1;
Initial revision

remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.5.18; 1.5.20; 1.5.22;
Allow unsetting the dump device via "swapctl -D none".
For -l (list swap partitions) and -z (list dump device) return a usefull
error status, so scripts can easily decide if swap or dump are configured.

Kill __P(), use ANSI function declarations, constify; WARNS=3.

Reviewed by mrg@.

add a "-h" (humanize_number(3)) option to swapctl(8) and pstat(8), from
Martin Weber in PR#23805.

ps: now we only need someone to do ls(1) :-)

remove advertising clause from all my licenses.

branches: 1.1.1;
Initial revision

Avoid overflow of totals.

Minor formatting change in swapctl -l as noted in my PR bin/51155

redo previous to fix amd64 build

fix sign-compare issue

branches: 1.15.4;
remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.14.18; 1.14.20; 1.14.22;
Allow unsetting the dump device via "swapctl -D none".
For -l (list swap partitions) and -z (list dump device) return a usefull
error status, so scripts can easily decide if swap or dump are configured.

Kill __P(), use ANSI function declarations, constify; WARNS=3.

Reviewed by mrg@.

support "-g" and "-m" as well as "-k" and "-h". swapctl & swaplist code
from Martin Weber, adapted for pstat by myself.

add a "-h" (humanize_number(3)) option to swapctl(8) and pstat(8), from
Martin Weber in PR#23805.

ps: now we only need someone to do ls(1) :-)

Add NetBSD RCS Ids.

Add space in summary printf.

branches: 1.8.10;
print the strerror if swapctl fails.

<vm/vm_swap.h> -> <sys/swap.h>

add a `char se_path[PATH_MAX]' member to struct swapent, that
the pathname of the swap device is saved into. add a char *swd_path
member to struct swapdev, that contains a copy of the pathname
(using malloc(9)). rename swapctl(2)'s SWAP_STATS to SWAP_OSTATS,
and add a new SWAP_STATS command (number). make swapctl(SWAP_STATS,
...) [new version] copy the path out. if COMPAT_13, also include
support for SWAP_OSTATS. also fix a minor bug in swapctl(2).

the point of this is that swapfiles are now shown in `swapctl -l'.

Fix this to correctly do swapctl -l for regions > 2^31 bytes.
We include <inttypes.h> in case at some point in the future we do things
the SUSV2 way and originate the 64-bit scalar defs there.

branches: 1.4.2;
remove advertising clause from all my licenses.

free() what you malloc().

include <err.h> for err*() and warn*() prototypes
fix some printf() formats to take long args instead of int

branches: 1.1.1;
Initial revision