[Coco] Megaread problems

[Dave Philipsen]

So, I *think* that the real problem is that /dd is a directory.  And in 
order to read a directory it has to be opened in a different way than a 
regular file.  I haven't written any file manipulation code for OS9 in 
years so I'd have to look this up in the tech manual but I'm guessing 
that when you open a file for reading you may have to specify that it's 
a directory if it actually is one.  As an example, the disk editor 'ded' 
will correctly open a root directory and read it in (ded /dd).  
Additionally, megaread will correctly read from a regular file but if 
the regular file is shorter than what megaread wants to read then it 
will just finish early without errors.  So 'megaread /dd/bigfile' works 
but only provides useful information if 'bigfile' is at least one 
megabyte in size.

Dave


On 3/27/2017 1:02 PM, Robert Gault wrote:
> Tim Fadden wrote:
>> <snip>
>> So it is something system wide?  and not megaread itself?
>>
>>
>> Any how just wanted to let you know your not loosing it. :-)
>>
>
> In a way :). The help message is incorrect for this utility and should 
> indicate that a raw read is necessary, ex. megaread </DD@
>
> Robert
>
>