bump date

PR/54768: elo: Missing cksum(1) convenience links (and docs) for new sha2
functions.

branches: 1.48.6;
Remove workaround for ancient HTML generation code.

New sentence, new line.

PR/49134: Kamil Rytarowski: Add -q flag.

branches: 1.45.6;
Remove unknown \*(tN and \*(sP macros.

ok wiz.

branches: 1.44.2;
Omit outdated cryptographic claims as noted in PR 44160.

Interested readers can follow the references or read Wikipedia; this
is the wrong place to explain cryptographic hash functions and give
security advice.

branches: 1.43.6; 1.43.8;
Use plain \* not \\*. Fix trailing whitespace

Don't use macros for the synopsis. Improve markup to break argument
groups together by not splitting opening and closing macro over lines.

branches: 1.41.2;
Clean up the usage display to match reality.
Allow 'sum' to take '-a algorithm', so that its usage matches 'cksum'.
Per discussion with Igor Sobrado resulting from PR 39658.

branches: 1.40.2; 1.40.12; 1.40.24; 1.40.26; 1.40.30;
Bump date for previous.

mention we support sha2, pointed out by dieter roelants

okay hubertf

remove -1, -2, -4, -5, -6, -m.

Document more explicitly that -c takes an optional file argument.

Allow reading the checksum list from stdin if no file is given with -c.
This allows verifying the checksums e.g. after downloading a NetBSD
release:
cat BSDSUM CKSUM MD5 SHA512 SYSVSUM | cksum -c

A fix for HTML output; punctuation nits.

Document -w, too.

Add a switch "-c file" to verify a list of checksums generated by the
cksum program and stored in file against files on disk. E.g. first
run "md5 *.tgz >MD5" to generate a list of MD5 checksums in MD5, then
use the following command to verify them use "md5 -c MD5"

Inspired by Linux' md5sum,
called for by Jukka Salmi <j+nbsd@2006.salmi.ch>on netbsd-help@,
reviewed by rui@.

Use correct macro. From YOMURA Masanori in private mail.

Punctuation nits.

Add support for SHA2 in cksum.

Put back in information about the deprecated flags in the man-page. Be
explicit about them being removed, and suggest using the ``-a'' flag.

Note about deprecated flags.

Add comments about intentionally not documenting the deprecated -1, -2, -4,
-5, -6, and -m flags so they are not mistakenly get documented again in the
future.

Some changes to cksum:

1. Deprecate the -1, -2, -4, -5, -6, and -m flags. For now, simply remove
them from the documentation.

2. Add and document ``-a algorithm''.

branches: 1.25.2;
-p, -s, -t, and -x are mutually exclusive -- make it obvious in
the SYNOPSIS.

s/the the/the/ (only in sources that aren't regularly imported from
elsewhere).

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

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

End sentence with a dot.

Fix typo: extra 'a' word in plural sentence. Approved by wiz.

Bump date for last.

Add a -n flag for the hash output forms, so that the output is
"normal", ie, "hash filename" (like all the simple checksum output
forms) as opposed to "hashname (filename) = hash". This output form
is, imho, somewhat more useful because you can pass it directly to
sort to find identical files. For example:

md5 * | sort | uniq -c | grep -v ' 1 '

New sentence, new line.

branches: 1.17.2;
Generate <>& symbolically. I'm avoiding .../dist/... directories for now.

Add sections to xrefs, and remove some unnecessary whitespace while I'm
here.

Add MD2, MD4, SHA1, and RMD160 support to cksum. Adding new hashes to
cksum(1) should now be easy.

- Don't overstrike the |.
- Use the default .Ar argument.

branches: 1.13.10;
More and more .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages. Many more to
come.

add missing .Nm sections.

branches: 1.11.2;
WARNSify

Fix typo, per Dave Huang <khym@bga.com>, PR #3345.

Add support for generating MD5 checksums, partially derived from the
FreeBSD md5(1) program. MD5 checksums may be generated by using the
"-m" flag to cksum, or by invoking this program as "md5".

Sync with 4.4lite2

merged with 4.4Lite

Add sum(1) alias, per Matt Green. Various other cleanup. Someone should
finish the addition to the HISTORY section.

Fix formatting bug: a "1" or "2" argument to -o is manditory.

Use ".St -p1003.2-92" macro instead of spelling it out.

update to the latest cksum utility from uunet. this one is posix
compliant (i think), and fixes a bogon in the old CRC calculation.
yes, that's right, the CRC's it generates are different.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision