wk@hpirs.HP.COM (Wayne Krone) (07/08/89)
> I have a user entered time/date in the format: > yymmddhhmmss > I need to convert this into seconds since the epoch and If you have ANSI C libraries, convert the yymmddhhmmss into a tm struct and then use mktime() to convert that into seconds since the epoch. Wayne
lance@lancelot (Lancelot of Caid) (07/11/89)
In article <4760015@hpirs.HP.COM>, wk@hpirs.HP.COM (Wayne Krone) writes:
< > I have a user entered time/date in the format:
< > yymmddhhmmss
< > I need to convert this into seconds since the epoch and
<
< If you have ANSI C libraries, convert the yymmddhhmmss into a tm struct
< and then use mktime() to convert that into seconds since the epoch.
<
< Wayne
What if you DON'T have ANSI C libs?
What if you only have SCO 386 Xenix libs?
What can a person do then????
Anyone got a lib set that WILL do this that I can get? (source?)
Thanks,lance@lancelot (Lancelot of Caid) (07/11/89)
sorry. Forgot the .sig file :) Lance Ellinghouse (A.K.A Lancelot of Caid) "Life is a game of Chess, some are Kings, some Queens, some pawns, and some just get taken." - Lancelot ucla-an!hermix!lancelot!lance; ucla-an!hermix!lancelot!lance@ee.UCLA.EDU
smb@ulysses.homer.nj.att.com (Steven M. Bellovin) (07/11/89)
In article <303@lancelot>, lance@lancelot (Lancelot of Caid) writes: > In article <4760015@hpirs.HP.COM>, wk@hpirs.HP.COM (Wayne Krone) writes: > < > I have a user entered time/date in the format: > < > yymmddhhmmss > < > I need to convert this into seconds since the epoch and > What if you DON'T have ANSI C libs? I answered the original posting by email; I'll repeat it publicly. At the cost of a few small syntactic rewrites of that string, getdate() -- part of the netnews src, and in the public domain since I wrote it lo these many years ago -- can do the job. It's overkill, but it will work if you don't want to take the time to do it right for this particular case. --Steve Bellovin
vic@zen.co.uk (Victor Gavin) (07/12/89)
In article <4760015@hpirs.HP.COM> wk@hpirs.HP.COM (Wayne Krone) writes: >If you have ANSI C libraries, convert the yymmddhhmmss into a tm struct >and then use mktime() to convert that into seconds since the epoch. > >Wayne Is there an ANSI C/Posix/WhateverStandardYouCareToNominate function that will convert from a time in a string (as produced by asctime()/ctime()) ? [[I've always wanted one for those odd occasions, but have (up to now) been able to do without]] vic -- Victor Gavin Zengrange Limited vic@zen.co.uk Greenfield Road ..!mcvax!ukc!zen.co.uk!vic Leeds England +44 532 489048 LS9 8DB
guy@auspex.auspex.com (Guy Harris) (07/15/89)
>Is there an ANSI C/Posix/WhateverStandardYouCareToNominate function that will >convert from a time in a string (as produced by asctime()/ctime()) ? No, but you could snatch the "getdate" function from, among other places, the netnews source (as Steve Bellovin, author of that function, may already have noted); it uses a YACC parser to accept quite a number of time formats, and if it doesn't handle "asctime()" format you can probably whack it to do so. It currently does the equivalent of what "mktime()" does itself, but you could rewhack it to use "mktime()", at the expense of possibly eliminating its ability to parse dates with explicit time zone specifications in them.
wk@hpirs.HP.COM (Wayne Krone) (07/15/89)
> >If you have ANSI C libraries, convert the yymmddhhmmss into a tm struct > >and then use mktime() to convert that into seconds since the epoch. > > > >Wayne > > Is there an ANSI C/Posix/WhateverStandardYouCareToNominate function that will > convert from a time in a string (as produced by asctime()/ctime()) ? Not that I'm aware of. I'll start a discussion in X/Open to see if we can address this need. A function that would convert local (German, Japanese, ...) date/time strings as well as the asctime() string would be useful. Wayne