|
Software > OpenVMS Systems > Ask the Wizard HP OpenVMS Systemsask the wizard |
|
The Question is: I am trying to read a binary file that was produced on an Alpha machine running OpenVms. The binary file is downloaded to an NT machine. I can read everything except the quadword date fields. Can you give me some 'C' or 'C++" source code that will convert this date into a Unix (or NT) equivalent as seconds since Jan 01 1970? As you know, the NT OS does not support a quadword - and only some Unixes do - and even then there would have to be som e byte swabbing, I would imagine. I also have a SUN box, which does have an extended 64bit integer. Eventually I would like to be able to read the same binary data on both machines. The Answer is : You have reached the OpenVMS Wizard, and not the Windows NT nor the Sun Solaris programming Wizard. Please contact the appropriate Wizard for further assistance with programming on the particular target platform. What mechanisms or services or time formats might be available varies by platform. The OpenVMS quadword time format is the integer number of 100 nanosecond ticks since the system base date of 17-Nov-1858. Of course, you could also convert the time on OpenVMS (there are more than a few conversion routines available in OpenVMS) into a C- or into a UTC-format text representation, and then pass that text over to the remote system.
|