[Info-vax] proper format for JPEG files

Jose Baars peutbaars at googlemail.com
Sun Jul 24 08:55:17 EDT 2011


On Jul 24, 3:30 am, moro... at world.std.spaamtrap.com (Michael Moroney)
wrote:

> I suppose it's theoretically possible for a large .jpg to have more than
> 32767 bytes between LF characters, in which case the Stream_LF format will
> fail.

A utility creating such files on VMS would require it to write
records
larger than 32767 bytes, which is illegal, but there are (or have
been)
utilities that did, I have found several offending files on systems.
I'm not sure of the exact root cause or offending utility.
Changing the file with set file/attr=(rfm:fix,lrl:512) repairs this.

To add to the confusion: An RMS $GET will fail on such a file, but
a C read wil do fine.






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