topic Re: Converting Unix timestamp to VMS in Operating System - OpenVMS

Converting Unix timestamp to VMS

Dana Vraspir — Wed, 17 Dec 2003 10:00:16 GMT

I need to find a C function that can be passed a Unix timestamp (unsigned long), and return a managable (readable) date time format.

Re: Converting Unix timestamp to VMS

Antoniov. — Wed, 17 Dec 2003 12:09:58 GMT

I don't understand your question; in C over VMS you can use all unix function and all structure of unix time.
Please post more info for furthermore help.

Bye
Antoniov

Re: Converting Unix timestamp to VMS

Brad McCusker — Wed, 17 Dec 2003 15:03:47 GMT

Wouldn't ctime() do what you want?

Your question is not clear, perhaps you don't have an understanding of the time functions available on VMS? Please reference the latest copy of the HP C Run-Time Library Reference Manual for OpenVMS Systems, specifically chapter 11 which deals with date and time functions. It is available on line at: http://h71000.www7.hp.com/doc/732FINAL/5763/5763pro_019.html#date_time_chap

If that doesn't help answer the question, please give us some more details, and we can try to help.

Regards,

Brad McCusker
VMS Engineering

Re: Converting Unix timestamp to VMS

Peter Skoog — Thu, 18 Dec 2003 07:47:13 GMT

Hi,

Take a look at strftime in C runtime which is used to format a struct tm.

Example:

time_t tp;
char ts[100];
time( &tp );
strftime( ts, 99, "%Y-%m-%d %H:%M:%S",
localtime( &tp ) );

Regards
Peter

Re: Converting Unix timestamp to VMS

Dana Vraspir — Thu, 18 Dec 2003 10:24:43 GMT

Yes - ctime() does just what I wanted.
A little more research on my part would have answered this.

Thank you!

Re: Converting Unix timestamp to VMS

Vouters — Sat, 07 Feb 2004 06:26:30 GMT

Dana,

Wouldn't the following example help ?
http://h18000.www1.hp.com/support/asktima/operating_systems/009C99AA-F657C6A0-1C0096.html