Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

separate the term check stuff.

makefile delint. use NETBSDSRCDIR as appropriate

utmpx support.

RCS ID police

Update to 4.4-Lite version, converted to use err*(3) and warn*(3).

Add RCS identifiers.

branches: 1.1.1;
Initial revision

fix sign-compare issue

branches: 1.7.36;
PR/28474: Geoff C. Wing: write does some weird checking and can't handle ptyfs

make the atime and msgok optional. If we did not request atime, then we
don't want strict checking and in this case if the tty is not found we
don't exit. write calls this with atime != NULL and wall calls this with
atime == NULL.

Allow root to write even if it does not have a tty.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

PR/21568: Martin Husemann: Shutdown gets permission denied error from wall

improve error handling and knf.

separate the term check stuff.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

separate the term check stuff.

write was in v1
https://www.bell-labs.com/usr/dmr/www/man14.pdf

branches: 1.6.98; 1.6.100;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

WARNSify; clean up .Nm

RCS ID police

Update to 4.4-Lite version, converted to use err*(3) and warn*(3).

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

static + __dead

NULL does not need a cast

Remove the \n and tabs from the __COPYRIGHT() strings.
Tweak to use a consistent format.

branches: 1.24.20;
strncpy -> strlcpy

branches: 1.23.12;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

separate the term check stuff.

defend against malicious line in ut_line, which could cause unwanted
writes to anything under /dev. revoke setuid/gid privs earlier.
From: xs@kittenz.org

utmpx support.

un__Pify, ANSIfy and constify.

/dev -> _PATH_DEV

Make gcc 2.96 (and maybe earlier) happier. Include <stdlib.h>,<string.>,
etc. as appropriate to get exit,srncmp,abs,abort,etc.
Add -I${.CURDIR} to a few Makefiles

Since our gcc doesn't warn about NULL format strings anymore, we can
fix the incorrect err(1, "%s", "") et al.
Closes PR bin/7592 by cgd.

branches: 1.15.6;
char -> unsigned char

Add { and } to shut up egcs. Reformat the more questionable code.

const poisoning.

KNF. use S_IWGRP instead of homegrown crap. ensure tty buffer is nul-terminated.

- use an array MAXHOSTNAMELEN+1 size to hold hostnames
- ensure hostname from gethostname() is nul-terminated in all cases
- minor KNF
- use MAXHOSTNAMELEN over various other values/defines
- be safe will buffers that hold hostnames

deprecate register

WARNSify; clean up .Nm

remove possibly dangerous sprintf and strcpy calls.

sprintf -> snprintf, from David A. Holland <dholland@eecs.harvard.edu>

fix write to print a warning if the sender has "mesg n" set, instead
of dying with an error. From Mark Weaver
closes pr-355, per thorpej

branches: 1.5.6;
sync with 4.4lite2

misc cleanup by jimj and myself.

Update to 4.4-Lite version, converted to use err*(3) and warn*(3).

Add RCS identifiers.

branches: 1.1.1;
Initial revision