usr.sbin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

usr.sbin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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pppctl88) Avoid strcpy() copies on overlapping string.

This may lead to unpredicatable behaviour on different platforms or C
library implementations. Use an intermediate variable.

Obtained from: Dr

pppctl88) Avoid strcpy() copies on overlapping string.

This may lead to unpredicatable behaviour on different platforms or C
library implementations. Use an intermediate variable.

Obtained from: DragonFlyBSD (git a861a526)

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various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.

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Handle select() returning -1/EINTR - fairly common in these KSE days.

PR: 74972
MFC after: 3 days

Add IPv6 support to pppctl by using getaddrinfo() and trying each address
it returns. This allows it to connect to the server side again, which
has been listening on IPv6 addresses exclusively for mo

Add IPv6 support to pppctl by using getaddrinfo() and trying each address
it returns. This allows it to connect to the server side again, which
has been listening on IPv6 addresses exclusively for more than 2 years.

PR: 59369

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add FBSDID

*** empty log message ***

Better handling of the return from snprintf

Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. The
definitions are more readable, and it's possible that they're
more portable to pathalogical platforms.

Submitted by: David Hill <da

Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. The
definitions are more readable, and it's possible that they're
more portable to pathalogical platforms.

Submitted by: David Hill <david@phobia.ms>

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Issue a ``quit'' after other ppp commands given on the command line and
then wait for the connection to be closed by the peer.

This means that commands such as ``pppctl ... show links'' will
display

Issue a ``quit'' after other ppp commands given on the command line and
then wait for the connection to be closed by the peer.

This means that commands such as ``pppctl ... show links'' will
display the correct output again (rather than truncating it depending
on how much data arrived in the last packet).

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A NetBSD specific fix
Kind-of obtained from: NetBSD

Change interactive mode so that a monitor thread keeps an eye on the
ppp descriptor and signals the terminal thread when there's something
to read on that descriptor.

This means that the main loop d

Change interactive mode so that a monitor thread keeps an eye on the
ppp descriptor and signals the terminal thread when there's something
to read on that descriptor.

This means that the main loop doesn't have to alarm() itself into
dropping out of el_gets() frequently to check the descriptor. This
dropping out was disturbing syscons (via ioctl()s from libedit) enough
to reset the screensaver timeout every .5 of a second.

PR: 20345

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libutil is no longer required as setproctitle() has moved to libc

If the -p option is used, use setproctitle() to hide it's argument
(a password) asap.

NetBSD has changed the el_init() prototype

Submitted by: Kazuyoshi Kato <kazk@yyy.or.jp>

$Id$ -> $FreeBSD$

Use err[x]/warn[x] and improve error reporting
Submitted by: charnier

Add support for NetBSD (history() from libedit is different).

Mention the error when we fail to connect().

Quiet -Wall in gcc-2.8.1
Obtained from: OpenBSD

Remove bogus timeout code in Receive().
Don't read(fd, buffer, 0) and think ppp has closed the
connection when `buffer' is full, instead, flush most of
buffer to the terminal and read() for a reasona

Remove bogus timeout code in Receive().
Don't read(fd, buffer, 0) and think ppp has closed the
connection when `buffer' is full, instead, flush most of
buffer to the terminal and read() for a reasonable length.
This fixes "show route" when there's more than 2k of
routing output.

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Add (BSD) copyright headers.

Zero struct sockaddr_??s before filling them in.
Suggested by: Theo de Raadt <deraadt@cvs.openbsd.org>