src/usr.bin/at/parsetime.c, branch release/10.4.0

Allow time offsets to be negative, e.g. `at 1530 - 15 minutes`.

2012-10-05T17:54:27Z

This is useful if you have been given some time for some event in some format and you want your computer to do something to prepare for it. Without having to do time arithmetic in a shellscript. The syntax matches what the at(1) usually used on Linux supports.

Add missing static keywords to at(1).

2011-11-06T17:32:29Z

While there, tidy up the privs.h part, where at.c has to #define to declare some globals. Also group static and non-static global variables in at.c.

While revision 1.26 fixed the code to really subtract 3600 due to

2005-08-18T08:18:02Z

daylight-saving, this was actually wrong because mktime() already does that for us.

Don't throw away the adjusted `runtimer' value.

2005-08-05T08:07:02Z

Style improvements recommended by Bruce as a follow up to some

2001-12-10T21:13:08Z

of the recent WARNS commits. The idea is: 1) FreeBSD id tags should follow vendor tags. 2) Vendor tags should not be compiled (though copyrights probably should). 3) There should be no blank line between including cdefs and __FBSDIF.

Use __FBSDID()

2001-12-02T20:23:02Z

WARNS=2 fixup.

2001-12-02T12:26:18Z

Allow an ``at now'' specification.

2001-11-24T10:43:53Z

PR: 32242 Submitted by: Alan E MFC after: 3 weeks

Expland `mymalloc' with malloc + error checking.

2001-07-24T14:15:51Z

Y2K fix. at(1) would die with 'garbled time' when assign_date() was

2000-03-27T09:32:23Z

pased a year > 99. This change fixes the conversion of 2-digit years into tm_year format. This change is differs from the OpenBSD fix because of differences in our assign_date(). PR: 15872 Reported by: "Crist J. Clark" Submitted by: "Sergey N. Voronkov" Obtained from: OpenBSD