[Info-vax] fixing a saveset's attributes: attachment, not ftp

[Steven Schweda]

> After base64-decoding it, what SET FILE/ATTRIBUTES command is
> needed  to fix it, [...]

   I'd probably try the same old DCL scripts as are used after an FTP
transfer.  For example:

alp $ bac login.com login.bck /save

alp $ bac /lis login.bck /save
Listing of save set(s)

Save set:          login.bck
Written by:        SMS
[...]
Total of 91 files, 1649 blocks
End of save set

alp $ b64encode login.bck login.b64
alp $ b64decode login.b64 login.bck2

alp $ bac /lis login.bck2 /save
Listing of save set(s)

%BACKUP-F-NOTSAVESET, ALP$DKC0:[SMS]LOGIN.BCK2;1 is not a BACKUP save set

alp $ bac login.bck2 login.bck3
alp $ @utility:cnvb login.bck3          ! (My script.)
   File record format is Stream_LF.  The file's record format attribute
   must be changed to fixed-512 before attempting the actual repair.
   Proceed?  (y/n [n]): y
   Original save set record length was 32256.
   Change attributes?  (y/n) [n]: y
   Setting file attributes...

alp $ bac /lis login.bck3 /save
Listing of save set(s)

Save set:          login.bck
Written by:        SMS
[...]
Total of 91 files, 1649 blocks

alp $ bac login.bck2 login.bck4
alp $ @ [.itrc]reset_backup_saveset_file_attributes.com login.bck4

alp $ bac /list login.bck4 /save
Listing of save set(s)

Save set:          login.bck
Written by:        SMS
[...]
Total of 91 files, 1649 blocks
End of save set