Add a program to manipulate watchdog timers.

wdogctl(8): Minor tweak suggested by a passing umarell.

Plus another wording improvement.

wdogctl(8): fix -width in previous

wdogctl(8): Rework prose and markup in man page.

No functional change.

Xref x86/tco(4) instead of the parent x86/ichlpcib(4) bridge.

Xr pwdog(4).

Add missing comma.

Xref x86/ichlpcib(4) instead of ichlpcib(4).

Xr acpiwdrt(4)

First release that shipped wdogctl(8) was 1.6, not 1.5.1.

Sort SEE ALSO.

Xref gcscpcib(4).

Xref itesio(4).

branches: 1.16.2;
Mention evbarm/iopwdog(4) and swwdog(4).

Mention some watchdog drivers in SEE ALSO and don't mention envsys(4)
or envstat(8), they don't have nothing in common with watchdogs.

<wizd> Bump date.

branches: 1.14.8;
Bump date for new -x.

Add a flag to wdogctl(8), -x, that activates a user-mode timer that
is NOT disarmed when wdogctl closes the watchdog device. The -x
mode protects against the case where the kernel kills wdogctl,
sshd, and other essential userland programs (due to memory exhaustion,
for example), lobotomizing a mission-critical NetBSD system and
necessitating an operator visit to reboot it.

"-offset indent" is fine for option lists -- re-add it,
backing out previous. jmmv does not disagree.

Remove extra indentation from the options list.

Sort options. Fix a typo. Bump date for -e/-t.

Add a software watchdog timer facility. Because this slightly
changes the "tickle" model of wdogctl(8), it was modified as well;
while I was in there, I cleaned up the argument parsing.

The code was reviewed by simonb@.

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

New sentence, new line. From Robert Elz.

Format the path to a file with .Pa.

Note that not all watchdog timers can be disarmed once armed, and that
when such a case is encountered, an error message will be displayed and
the timer will remain armed if an attempt to disarm it is made.

branches: 1.4.2;
Use standard section headers.

Drop arguments of .Os.

typo

Add a program to manipulate watchdog timers.

Use _PATH_WATCHDOG from <paths.h> instead of locally-defined value.

static + __dead

Fix fd leaks. Found by cppcheck.

fix sign-compare issues

branches: 1.17.28;
Add -x to usage.

Add a flag to wdogctl(8), -x, that activates a user-mode timer that
is NOT disarmed when wdogctl closes the watchdog device. The -x
mode protects against the case where the kernel kills wdogctl,
sshd, and other essential userland programs (due to memory exhaustion,
for example), lobotomizing a mission-critical NetBSD system and
necessitating an operator visit to reboot it.

If ioctl(,WDOGIOC_SMODE,) fails, kill the child process before
killing self, instead of the other way around.

Fixes a bug where the child process would use 100% CPU spinning
while it waited for its parent to arm a non-existent watchdog timer.
Now, the child process gets killed, as was intended.

Cosmetic: KNF.

apply "& WDOG_MODE_MASK" at some places, fixes termination of the
usermode tickler process and watchdog display,
make error handling more reasonable in case a wdog disappeared

Sort options in usage.

Add a software watchdog timer facility. Because this slightly
changes the "tickle" model of wdogctl(8), it was modified as well;
while I was in there, I cleaned up the argument parsing.

The code was reviewed by simonb@.

Homogenize usage messages: make the 'usage' word all lowercase, as this seems
to be the most common practice in our tree.

use bounded string op

Add NetBSD RCS Ids.

use getprogname()

fix nested extern

Remove extern __progname from enable_user(); no longer used.

use explicit name rather than __progname in openlog

don't use LOG_CONS
fix typo

#include <string.h> for strlen() and strcpy().

Add a program to manipulate watchdog timers.