Re: plz help with tcpserver

[Alex fxmbsw7 Ratchev]

( this is the part where the httpd does nothing till eof of client ,
i .. didnt have this much yet )

On Mon, Jul 26, 2021 at 9:44 PM Alex fxmbsw7 Ratchev <fxmbsw7@gmail.com> wrote:
>
> so, without the break, because of time and clearness
>
> tcpserver by djb, cr.yp.to
> gawk yea.. i try specifically \n\n as rs there cause i need it in my bhttpd 
> projrct, that obviously serves http, where \n\n mark http part end
>
> weird i had it going already, before also discovering another gawk bug
>
> so, tcpserver starts simple gawk, that should print after recieving 2 \ns 1 \n
> needed parsed around like this by http spec, HTTP/0.1
>
> term 1
> tcpserver 0 2000 strace -f gawk -v RS=\\n\\n 1 &
>
> strace for seeing weirdness
> then
> term 2, no printf or pipe, non eof input
> cause, http clients dont end conn after printing req headers
> ( nc 0 2000 to connect via netcat .org or so telnet client to localhost port 
> 2000 )
>
> nc 0 2000
>
> then see strace began to show, read(
>
> then enter newlines some, it never prints, till control-c of nc
> and result, the printed input, wont ever be recieved
>
> .. i mailed misc@list.cr.yp.to couldnt find better address and the gawl folks 
> are of previous similiar bug also informed
>
> On Mon, Jul 26, 2021, 21:33 Greg Wooledge <greg@wooledge.org> wrote:
>>
>> On Mon, Jul 26, 2021 at 08:56:35PM +0200, ikhxcsz7y xmbott wrote:
>> > yes around so, however i got weird nonworking gawk results
>> > i mailed misc@list.cr.yp.to ( tcpserver ) and the gnu help and bug gawk
>> > lists from a previous similiar, they couldnt fix it, or say not so .. much
>> > .. i dunno its not fixed
>> >
>> > but see in tcpserver 0 1024 strace -fF -s 50 gawk -v RS='\n\n' 1
>> > then on nc 0 1024
>>
>> Stop.
>>
>> Take a 5 minute break.  Do not do anything on your computer for at least
>> that long.
>>
>> After you've taken a 5 minute break, try to write down instructions
>> for how to reproduce the error that you're seeing.  Write it so that
>> your baby sister or your grandmother could follow the instructions.
>>
>> Be ABSOLUTELY clear from start to finish.  You can assume that gawk and
>> tcpserver are installed, but you need to describe exactly what steps
>> one must take in order to see the error, and why you think it's an error.
>>
>> An example might look something like this:
>>
>>  1) Open two terminals.
>>
>>  2) In the first terminal, run this command:
>>     tcpserver 0 1024 gawk something
>>
>>  3) In the second terminal, run this command:
>>     printf something | nc 0 1024
>>
>>  4) In the second terminal, I expected to see _________.
>>     Instead, I see _________.
>>
>> Remember, nobody understands what you are trying to do yet.  Most of
>> us aren't experts in awk/gawk, or tcpserver, or netcat, but we may have
>> *some* spotty knowledge.  So, if you can make your problem simple enough
>> that other people can reproduce it, you might get lucky.
>>