Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

date(1): Add "-R" flag to use RFC 2822 date and time output format [MFC]

As stated in the man page, this is equivalent to use "%a, %d %b %Y %T %z"
as the output format while LC_TIME is set to the "C" locale.

This is compatible with date(1) from the GNU core utilities.

This is an MFC of r264968 and r264970.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Rework all non-contributed files that use `struct timezone'.

This structure is not part of POSIX. According to POSIX, gettimeofday()
has the following prototype:

int gettimeofday(struct timeval *restrict tp, void *restrict tzp);

Also, POSIX states that gettimeofday() shall return 0 (as long as tzp is
not used). Remove dead error handling code. Also use NULL for a
nul-pointer instead of integer 0.

While there, change all pieces of code that only use tv_sec to use
time(3), as this provides less overhead.

Port everything in bin/ from utmp to utmpx.

date: use libc utmpx routines instead of the ones provided by libulog.
pax: don't depend on <utmp.h>

Let date(1) use utmpx instead of logwtmp().

utmpx also has OLD_TIME/NEW_TIME messages, which seem to be intended for
the same purpose as how we call logwtmp() here.

Don't reset DST computed by strptime() (when e.g. setting the
date via -f %s).

Reported by: Eugene Grosbein
Diagnosed by: Miguel Lopes Santos Ramos

/*- or .\"- or #- to begin license clauses.

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Rev. 1.32 moved a comment to the wrong line. The hack refered to
in the comment applies to a decision that needs to be made in relation
to the year 2000.

In fact, that statement probably should be changed to be
more generic (getting the year from the current time perhaps). Otherwise,
starting in 2069 two digit year conversions in date(1) will start assuming
1900 instead of 2000. hehe.

Check for write errors; report and exit with error value.

Enclose sccsid according to style(9).
udp/timed -> timed/udp

Staticify for lint.

Consistently use __FBSDID

Fix warnings inspired by lint, a commercial lint and WARNS=4.

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
they already are.

Approved by: arch@, new style(9)

Remove assumption that time_t is an int

MFC after: 1 day

Add -j to the usage string.

PR: 27986
Submitted by: Cyrille Lefevre <clefevre@redirect.to>

Fix an off-by-hour bug when crossing Daylight Saving Time boundary.

PR: bin/27399
Submitted by: "Crist J. Clark" <crist.clark@globalstar.com>
MFC after: 3 days

Don't explicitly declare optarg and optind. These are declared in
unistd.h, which is already included.

Expand the -r option to support hex. Though undocumented, the -r
option already supported octal. Add a comment to the -r option
in the man page so it's a bit more specific.

Discrepancy brought to my attention by: sasdrq@unx.sas.com
Approved by: jkh

Correct confusion and differentiate appropriately between GMT and UTC when
date is launched with the "u" argument. It now operates in the documented
manner.

Fix typo in date man page.

Submitted by: David McNett <nugget@slacker.com>

Back out previous commit and replace with a cleaner solution adapted
from the source attributed below. In particular, this removes a goto
inside a switch and replaces those horrendous ATOI macros with
something acceptable.

More clean-ups to come.

PR: bin/14151
Reported by: Christian Weisgerber <naddy@mips.rhein-neckar.de>
Obtained from: NetBSD

Allow the year to be specified with an optional century.

PR: 14472
Reported by: j_guojun@lbl.gov (Jin Guojun)

$Id$ -> $FreeBSD$

Don't continue if parsing failed when -f is in use. Exit with nonzero value.

the month and three days are up for -hackers and the 24hrs for -committers.

add a -j flag that tells date not to try to set the date. This allows you
to use date as a userland interface to strptime.

example:
TZ=GMT date -j -f "%a, %d %b %Y %T %Z" "Sun, 08 Nov 1998 02:22:20 GMT" +%s

which is the standard format for Last-modified headers in HTTP requests.

only one to respond: eivind

Support seconds with -v.
PR: 6308
Submitted by: Max Euston <meuston@jmrodgers.com>

Added missing #include <string.h>

Restore Lite-2 sccsid. Restore include of sys/param.h.

Correct use of .Nm and other cosmetics. Add rcsid. Remove unused #inc.

Cast a size_t to a long to avoid a gcc warning.

Put [+format] at the end of the usage message.
Make `date -?' output (pretty much) the same as
the man page
PR: 5269

Back out suppress '\n' mod.

Add the '-s' flag to the usage string.

Add the ability to supress the '\n' at the end of the date printed.

Fix the broken `date HHMM.SS' handling.

PR: bin/4661
Submitted by: blank@sliphost37.uni-trier.de (Sascha Blank)

Remove forgotten debug statement.

Add "-f fmt date" for specification of the
date using strptime(3).
Suggested by: Michael Smith <msmith@atrad.adelaide.edu.au>

Change mm & dd to MM & DD so that they don't
clash with the month.

Change [-DMHW [+|-]val] to [-v [+|-]val[ymwdHM]]
Support Hours & Minutes
Add -Wall to Makefile

Add [-DWMY] flags for date adjustment.
Discussed with: freebsd-hackers

Cosmetic change in usage string.

Fix typo in comment; Document in an example that years beyond 1999
are handled; fix typo in same example.

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Merge Lite2 mods, fix incorrect default string, cleanup
use of .Nm macros, and -Wall cleaning.

For nonexisten time use proper diagnostic instead of bad format and usage

Add setlocale(LC_TIME,...

Use %+ to print data using LC_TIME

date(1) didn't emit a final newline if the format had been specified
with `+'. This breaks tradition and violates Posix 1003.2.

Discoverd by: luigi@labinfo.iet.unipi.it (Luigi Rizzo)

Obtained from: partly from 386BSD-0.1.2.4

Fix several bugs involving the obsolescent -d and -t options:
-d 0 and -t 0 were ignored
-t -600 was a usage error
-d 'atoi is not suitable for parsing args' and -t duh were not usage errors

Change some error messages to say which call to settimeofday failed.

Restore casts of NULL in function calls.

Finish conversion to using err() instead of perror().

Added $Id$

This commit was generated by cvs2svn to compensate for changes in r1556,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite bin Sources