libexec/diff3prog: Don't duplicate the installation of diff3.1

The diff3.1 man page is already being installed by usr.bin/diff3.

rtld - do not allow both dynamic DTV index and static TLS offset

* If we are allocating static offset for an object with dynamic index,
return failure. In the opposite case, if dynamic index is re

rtld - do not allow both dynamic DTV index and static TLS offset

* If we are allocating static offset for an object with dynamic index,
return failure. In the opposite case, if dynamic index is requested for
statically allocated TLS area, directly use the offset instead of
setting the index.
Taken from FreeBSD, commit 91880e07f605edb90339685bc934699a4344de3b.

* While there, fix dtv timing race between threads.

Co-authored-by: Matthew Dillon <dillon@apollo.backplane.com>
Reported-by: Stephane Russell <srussell@prodigeinfo.qc.ca>

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world - Replace gnu diff, diff3, and sdiff with BSD versions

* Replace diff and diff3 with the OpenBSD diff and diff3,
Replace sdiff with the FreeBSD sdiff,
Remove the GNU diff, diff3, and sdiff

world - Replace gnu diff, diff3, and sdiff with BSD versions

* Replace diff and diff3 with the OpenBSD diff and diff3,
Replace sdiff with the FreeBSD sdiff,
Remove the GNU diff, diff3, and sdiff

* Basic testing with dsynth bulk to ensure no significant compatibility
disruptions.

Submitted-by: Tyler <tyler.clark@foxide.xyz>

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rtld - Improve error reporting

* Prefix hex type values with 0x

* Include (%s) obj->path so the user has some idea which file is
responsible for the error.

Requested-by: servik

IMPORT openssh-9.8p1

* Fixes CVE-2024-6387-openssh

* NOTE that DragonFly is not known to be vulnerable to this CVE, but
because it is a general signal race we are updating sshd anyway,
just in

IMPORT openssh-9.8p1

* Fixes CVE-2024-6387-openssh

* NOTE that DragonFly is not known to be vulnerable to this CVE, but
because it is a general signal race we are updating sshd anyway,
just in case.

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ttys.5: Improve manpage markups and update the examples

Reviewed-by: swildner

ttys: Add 'ifexists' option to enable ttys only if exists

Implement the 'ifexists' ttys option in init(8) to enable a tty only if
it exists. This allows one to turn off getty for ttys that aren't
p

ttys: Add 'ifexists' option to enable ttys only if exists

Implement the 'ifexists' ttys option in init(8) to enable a tty only if
it exists. This allows one to turn off getty for ttys that aren't
present (e.g., on a headless system), and thus prevent getty error logs
from filling up /var/log/messages; e.g.,

------
Sep 20 09:13:07 microserver getty[236362]: open /dev/ttyv0: No such file or directory
Sep 20 09:13:07 microserver getty[236404]: open /dev/ttyv0: No such file or directory
Sep 20 09:13:07 microserver getty[236405]: open /dev/ttyv0: No such file or directory
Sep 20 09:13:07 microserver getty[236406]: open /dev/ttyv0: No such file or directory
Sep 20 09:13:07 microserver getty[236407]: open /dev/ttyv0: No such file or directory
Sep 20 09:13:07 microserver init: getty repeating too quickly on port /dev/ttyv0, sleeping 30 secs
------

Update the ttys(5) and getttyent(3) man pages accordingly.

The updates to ttys files will follow.

Discussed-with: dillon
Credit: https://reviews.freebsd.org/D10037

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rbootd: add missing change to make it work

rbootd: Just open /dev/bpf rather than loop /dev/bpfN

/dev/bpf is a cloner on modern BSD.
/dev/bpfN needs to go away.

Move mailwrapper(8) examples from /etc/mail to /usr/share/examples.

Add details about forward(5) support by MTA and dma(8) lack of support.

openssh: Adjustments after import

- Adjust README.DELETED and README.DRAGONFLY
- Update openbsd-compat
- Regen config.h , adjusting several defines manually because the
configure script seems

openssh: Adjustments after import

- Adjust README.DELETED and README.DRAGONFLY
- Update openbsd-compat
- Regen config.h , adjusting several defines manually because the
configure script seems to not detect everything correctly.
- Add some required source files to SRCS in various programs.

Basic testing done:
- sshd runs and works, i.e. accepts incoming connections, allows different
auth methods (interactive, key).
- X-Forwarding works.
- Can ssh to other OSes.

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