or a symlink to a regular file. Previously, symlinking to /dev/null
would cause less to trash /dev/null if run with sufficient privileges,
as seen in PR misc/42237.
While the official way to disable .lesshst is to set an environment
variable, that is problematic in some cases, such as single-user mode.
A safer way to prevent even an unpatched less from writing anything
out is to mkdir ~/.lesshst.
* Add history file to save search and shell command history between
invocations of less.
* Improve behavior of history list for search and shell commands.
* Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C.
* Improve handling of UTF-8 files and commands, including better
line wrapping and handling double-width chars.
* Added LESSUTFBINFMT environment variable to control display of
non-printable characters in a UTF-8 file.
* Add --with-secure option to configure, to make it easier to
build a secure version of less.
* Show search matches in the status column even if search highlights
are disabled via the -G option or the ESC-u command.
* Improve performance when the file contains very long lines.
* Add "windows" charset.
* Add man page for lessecho.
* Add support for erase2 character, treated same as erase.
* Use ASCII lowercase/uppercase logic when operating on the command line.
* Update makefile for Borland C++ 5.5.1.
* Fix bug in calculating number of pages for %D prompt.
* Fix bug in handling tag file error.
* Fix obscure bug if input file is deleted while viewing help.
* Fix bug handling filenames which include square brackets.
* Fix possible buffer overflow in "global" tag search.
* Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE.
* Fix buffer overflow in reverse search.
* Removed some old copyrighted code.
This probably breaks OS/9 support.
* Add history file to save search and shell command history between
invocations of less.
* Improve behavior of history list for search and shell commands.
* Add -K (or --quit-on-intr) option to make less exit immediately on ctrl-C.
* Improve handling of UTF-8 files and commands, including better
line wrapping and handling double-width chars.
* Added LESSUTFBINFMT environment variable to control display of
non-printable characters in a UTF-8 file.
* Add --with-secure option to configure, to make it easier to
build a secure version of less.
* Show search matches in the status column even if search highlights
are disabled via the -G option or the ESC-u command.
* Improve performance when the file contains very long lines.
* Add "windows" charset.
* Add man page for lessecho.
* Add support for erase2 character, treated same as erase.
* Use ASCII lowercase/uppercase logic when operating on the command line.
* Update makefile for Borland C++ 5.5.1.
* Fix bug in calculating number of pages for %D prompt.
* Fix bug in handling tag file error.
* Fix obscure bug if input file is deleted while viewing help.
* Fix bug handling filenames which include square brackets.
* Fix possible buffer overflow in "global" tag search.
* Fix possible buffer overflow in usage of LESSOPEN and LESSCLOSE.
* Fix buffer overflow in reverse search.
* Removed some old copyrighted code.
This probably breaks OS/9 support.
less 381
Over three years ago the less maintainer said he'll add these fixes.
Nothing happened, so we do it ourselves.
Thanks for the report and the patch!
revision 1.7
date: 2004/04/08 15:18:28; author: millert; state: Exp; lines: +5 -7
When reallocating the line buffer, double the existing buffer
size instead of just incrementing it by LINEBUF_SIZE and use realloc()
+ memset() instead of calloc() + memcpy(). Prevents excessive resource
usage when displaying very long lines. OK deraadt@, krw@ and otto@
Ok'd by mrg.
v375 4/7/02 Fix searching for SGR sequences; fix SECURE build;
add SGR support to DJGPP version (thanks to Eli Zaretskii).
v376 6/10/02 Fix bug in overstriking mulitbyte UTF-8 characters
(thanks to Jungshik Shin).
Posted to Web page.
-----------------------------------------------------------------
v377 9/10/02 Fix bug in Windows version when file contains CR;
fix bug in search highlights with -R;
make initial buffer limit really be 64K not unlimited.
v378 9/30/02 Misc bug fixes and compiler warning cleanup.
Posted to Web page.
-----------------------------------------------------------------
v379 11/23/02 Add -L option; fix bug with ctrl-K in lesskey files;
improve UTF-8 overstriking and underscore overstriking;
fix minor man page problems; change to autoconf 2.54.
v380 11/24/02 Make LINENUM same as POSITION.
v381 11/28/02 Make -N use 7 columns for line number if possible.
roy