1. Trouble with "Web server and client"
I am having some trouble with Pete Eberlein's "Web server and client" for
Linux (http://www.rapideuphoria.com/webutils.zip).
Since the code is just socket communications, it need not be used only for
web access. Just change the port to 21 for telnet, 143 for imap, etc., and
you should be able to communicate, right?
That's what I thought, but I've run into a stumbling block.
Take a look at Pete's sample code, which works fine:
data = allocate(1)
while 1 = c_func(read, {i, data, 1}) do
reply &= peek(data)
end while
free(data)
Now take a look at mine, which gets stuck for some reason:
data=allocate(1)
while 1 = c_func(read, {session, data, 1}) do
reply &= peek(data)
end while
free(data)
So I put in a couple lines to see what it being read:
puts(1,sprintf("%s:%d-",{reply[length(reply)],
reply[length(reply)]}))
I am running this with trace on, by the way. In both cases, the last
characters read are a 13 then a 10. But with Pete's code, the while loop
gets exited, while with mine, it just gets stuck; the cursor stays on the
'end while' line and won't budge.
I am accessing Port 143 (IMAP), as opposed to 80 (http), but other than
that, there isn't any difference.
Can anyone see what I'm doing wrong? I just don't see why my code hangs on
the while loop. He has i declared as an integer, and data as an atom,
while have session as an integer, and data as an atom. Any ideas?
Thanks,
Ted Fines
Macalester College
2. Re: Trouble with "Web server and client"
- Posted by gertie at ad-tek.net
Aug 01, 2001
On 1 Aug 2001, at 22:10, Ted Fines wrote:
>
> I am having some trouble with Pete Eberlein's "Web server and client" for
> Linux (http://www.rapideuphoria.com/webutils.zip).
>
> Since the code is just socket communications, it need not be used only for web
> access. Just change the port to 21 for telnet, 143 for imap, etc., and you
> should be able to communicate, right?
>
> That's what I thought, but I've run into a stumbling block.
>
> Take a look at Pete's sample code, which works fine:
> data = allocate(1)
> while 1 = c_func(read, {i, data, 1}) do
> reply &= peek(data)
> end while
> free(data)
>
> Now take a look at mine, which gets stuck for some reason:
> data=allocate(1)
> while 1 = c_func(read, {session, data, 1}) do
> reply &= peek(data)
> end while
> free(data)
>
> So I put in a couple lines to see what it being read:
> puts(1,sprintf("%s:%d-",{reply[length(reply)],
> reply[length(reply)]}))
>
> I am running this with trace on, by the way. In both cases, the last
> characters read are a 13 then a 10. But with Pete's code, the while loop
> gets exited, while with mine, it just gets stuck; the cursor stays on the
> 'end while' line and won't budge.
In the trace window, are you hitting <enter> or <arrow down> to step thru the
program?
Kat
> I am accessing Port 143 (IMAP), as opposed to 80 (http), but other than
> that, there isn't any difference.
>
> Can anyone see what I'm doing wrong? I just don't see why my code hangs on
> the
> while loop. He has i declared as an integer, and data as an atom, while have
> session as an integer, and data as an atom. Any ideas?
>
> Thanks,
> Ted Fines
> Macalester College
>
>
>
>
>
>
3. Re: Trouble with "Web server and client"
What the read function does? Maybe that's the clue
Best Regards,
Guillermo Bonvehí
--- Ted Fines <fines at macalester.edu> wrote:
>
> I am having some trouble with Pete Eberlein's "Web server and client"
> for
> Linux (http://www.rapideuphoria.com/webutils.zip).
>
> Since the code is just socket communications, it need not be used
> only for
> web access. Just change the port to 21 for telnet, 143 for imap,
> etc., and
> you should be able to communicate, right?
>
> That's what I thought, but I've run into a stumbling block.
>
> Take a look at Pete's sample code, which works fine:
> data = allocate(1)
> while 1 = c_func(read, {i, data, 1}) do
> reply &= peek(data)
> end while
> free(data)
>
> Now take a look at mine, which gets stuck for some reason:
> data=allocate(1)
> while 1 = c_func(read, {session, data, 1}) do
> reply &= peek(data)
> end while
> free(data)
>
> So I put in a couple lines to see what it being read:
> puts(1,sprintf("%s:%d-",{reply[length(reply)],
> reply[length(reply)]}))
>
> I am running this with trace on, by the way. In both cases, the last
>
> characters read are a 13 then a 10. But with Pete's code, the while
> loop
> gets exited, while with mine, it just gets stuck; the cursor stays on
> the
> 'end while' line and won't budge.
>
> I am accessing Port 143 (IMAP), as opposed to 80 (http), but other
> than
> that, there isn't any difference.
>
> Can anyone see what I'm doing wrong? I just don't see why my code
> hangs on
> the while loop. He has i declared as an integer, and data as an
> atom,
> while have session as an integer, and data as an atom. Any ideas?
>
> Thanks,
> Ted Fines
> Macalester College
>
>
>
>
>
