Re: [express-devel] CI - error handling; FILE* vs. int/filedes; HTTP/1.1

[Brian S. P. <bst...@me...>]

> On Wed, Mar 01, 2000 at 03:54:28PM -0500, Brian St . Pierre wrote:
> > 2)  We now do HTTP/1.1 GET's.  This lets the
> > http://express.sourceforge.net/ URL work.
>
> I get several seconds delay between the "Request sent."-message and

I noticed this as well, but on a (sometimes) slow connection, I just thought
the network was a bit sluggish.

> Using a request of 'sprintf(buf, "GET %s HTTP/1.0\n\n", u->path);' works
> quite nice though.

Some servers don't support HTTP/1.0 anymore.  You'll get an error message
from http://express.sourceforge.net/, for example.

> I telnetted to my apache directly and entered
>
> GET / HTTP/1.1\n
> Host: localhost\n\n

I did the same thing at sourceforge and yahoo.  I thought telnet sent CR/LF
pairs instead of just LF (see below)?

> (the \n representing Enter, of course), which worked fine too, and AFAIK
> your code does exactly the same thing, so I don't really know why this
> happens...
>
> I tried to use '\r\n' and also '\r' instead of '\n', but that doesn't
> work correctly either.

I tried both of these as well.  The code seems to mimic telnet.  It is
likely that using stdio streams (i.e. FILE*) is trying to buffer the input
in such a way that kills performance.  I can take a look at using setvbuf to
turn buffering off.  Or we could decide to use non-ANSI-C output (i.e.
system-specific open/close/read/write); but I'd rather remain higher level
and closer to standards.

-Brian