Delete support for the LESSOPEN and LESSCLOSE environment variables
aka the "Input Preprocessor": it's been a source for multiple
security bugs in the past as everything has to deal with handling
arbitrary filenames and generally resulted in multiple TOCTOU issues.
The base system never included a default LESSOPEN setting like some
Linux distributions did, but it's a suds-filled sink full of knives
to try to use safely.

ok tb@ deraadt@ millert@

little bit more KNF

Back out of is_optchar() removal. daniel@ was not a fan.

Inline is_optchar(), a helper function with only one usage.

ok nicm@, stsp@

Cast three ctype functions' arguments to unsigned char and simplify a
helper function in the process.

ok tedu@

Garrett D'Amore has agreed to moving his copyright line up above the
terms with the existing copyright, so it is clear it applies the same
terms.

Replace less with the cleaned-up fork of less 458 maintained by Garrett
D'Amore at https://github.com/gdamore/less-fork. This has significantly
less portability goop, has a tidied up code style, uses terminfo instead
of termcap, and is has stricter POSIX compliance.

Many of our local changes have been accepted upstream: substantial
remaining local changes are code to read help files from /usr/share
rather than compiling them in, man page and help improvements, and some
tweaks to the default options.

Review and testing by millert, ok deraadt

Remove support for the obsolete (non-POSIX) "more -d" prompt.
This was a local change that was only enabled when the LESS_IS_MORE
environment variable was set and not when invoked as "more".
OK shadchin@ jmc@

Merge Less 458 plus local patches

ok guenther@, ok jmc@ for man bits

Reverse the default of the -c flag from off to on to prevent the text
being displayed in the wrong place initially and then jumping when first
redrawn (such as when searching).

ok deraadt sthen

Merge in less 444 plus local changes

ok nicm@

use SMALL_PROGRAM to knock out some code

Make the GNU_OPTIONS define actually do something (was a no-op)

o go back to using a help file instead of embedding it in the binary
o deal with HELPFILE not being defined
o add a SMALL definition to make a smaller less for the boot floppies
This still needs to be pared down a bit for the SMALL case

Merge in less-381 w/ local changes and remove obsolete files.

kill more registers

millert@ ok

$OpenBSD$

less "-d" descriptions swapped; mouse@Rodents.Montreal.QC.CA

Incorporate less modifications for more and our bug fixes from previous
version.

branches: 1.1.1;
Initial revision

little bit more KNF

Back out of is_optchar() removal. daniel@ was not a fan.

Inline is_optchar(), a helper function with only one usage.

ok nicm@, stsp@

Cast three ctype functions' arguments to unsigned char and simplify a
helper function in the process.

ok tedu@

Garrett D'Amore has agreed to moving his copyright line up above the
terms with the existing copyright, so it is clear it applies the same
terms.

Replace less with the cleaned-up fork of less 458 maintained by Garrett
D'Amore at https://github.com/gdamore/less-fork. This has significantly
less portability goop, has a tidied up code style, uses terminfo instead
of termcap, and is has stricter POSIX compliance.

Many of our local changes have been accepted upstream: substantial
remaining local changes are code to read help files from /usr/share
rather than compiling them in, man page and help improvements, and some
tweaks to the default options.

Review and testing by millert, ok deraadt

Remove support for the obsolete (non-POSIX) "more -d" prompt.
This was a local change that was only enabled when the LESS_IS_MORE
environment variable was set and not when invoked as "more".
OK shadchin@ jmc@

Merge Less 458 plus local patches

ok guenther@, ok jmc@ for man bits

Reverse the default of the -c flag from off to on to prevent the text
being displayed in the wrong place initially and then jumping when first
redrawn (such as when searching).

ok deraadt sthen

Merge in less 444 plus local changes

ok nicm@

use SMALL_PROGRAM to knock out some code

Make the GNU_OPTIONS define actually do something (was a no-op)

o go back to using a help file instead of embedding it in the binary
o deal with HELPFILE not being defined
o add a SMALL definition to make a smaller less for the boot floppies
This still needs to be pared down a bit for the SMALL case

Merge in less-381 w/ local changes and remove obsolete files.

kill more registers

millert@ ok

$OpenBSD$

less "-d" descriptions swapped; mouse@Rodents.Montreal.QC.CA

Incorporate less modifications for more and our bug fixes from previous
version.

branches: 1.1.1;
Initial revision