From owner-freebsd-questions  Tue Aug 27 20: 4:38 2002
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From: "Erik" <ehamilt@siue.edu>
To: "Gregory Bond" <gnb@itga.com.au>
Cc: <freebsd-questions@FreeBSD.ORG>
References: <200208280110.LAA01291@lightning.itga.com.au>
Subject: Re: fread returns eof too soon on a binary file 
Date: Tue, 27 Aug 2002 22:06:58 -0500
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I'll bite.  What book is that?  Although who needs books when you can screw
up and ask a mailing list?

Erik


----- Original Message -----
From: "Gregory Bond" <gnb@itga.com.au>
To: "ERIK G HAMILTON" <ehamilt@siue.edu>
Cc: <freebsd-questions@FreeBSD.ORG>
Sent: Tuesday, August 27, 2002 8:10 PM
Subject: Re: fread returns eof too soon on a binary file


> [This is not an appropriate topic for freebsd-bugs]
>
> The hole you are missing is:  What if send() returns a count less than len
but
> greater than 0?  You send only part of a block, but then go and fread()
more
> data from the current file offset, so the bit in the current block that
send()
> didn't transmit never gets sent.
>
> And what if fread() returns less than len bytes?  You'll wind up sending
more
> data than you've read.
>
> This is nothing to do with fread(), you have two glaring errors in
handling
> byte counts and short reads/writes. Have a look at any Unix programming
book
> which should cover this stuff.
>
>


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