Increase BUFSIZ to 8192

[Alfred Perlstein]

On 5/14/15 2:23 AM, Garrett Cooper wrote:
> On May 14, 2015, at 1:06, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
>
>> --------
>> In message <20150514075316.GY37063 at funkthat.com>, John-Mark Gurney writes:
>>> Poul-Henning Kamp wrote this message on Thu, May 14, 2015 at 07:42 +0000:
>>>> --------
>>>> In message <20150514072155.GT37063 at funkthat.com>, John-Mark Gurney writes:
>>>>
>>>>> Since you apprently missed my original reply, I said that we shouldn't
>>>>> abuse BUFSIZ for this work, and that it should be changed in mdXhl.c...
>>>> Say what ?
>>>>
>>>> BUFSIZ is used entirely appropriately in MDXFileChunk():  For reading
>>>> a file into an algorithm.
>>> In fact, posix-2008 references LINE_MAX because:
>> MDXFileChunk() does not read lines, it reads an entire file.
> Being pedantic, technically it’s a portion of a file, which can be the whole thing, and it reads it in “sizeof(buffer)” chunks (of which buffer is “hardcoded" to BUFSIZ right now).
> Cheers!
Shouldn't most of these be using st.st_blksize ?

I recall being part of the move to get rid of PAGE_SIZE, perhaps many 
places should be rid of BUFSIZE as well and BUFSIZE should be something 
we query the system for.

-Alfred