libc_r, libthr & konsole news

[Daniel C. Sobral]

Julian Elischer wrote:
> 
> On Tue, 3 Jun 2003, Daniel C. Sobral wrote:
> 
> 
>>Alas, I found *what* is going on differently depending on the library used.
>>
>>With libc_r, dup2() gets called and fails, preventing execution of 
>>konsole_grantpty, with libthr things work, konsole_grantpty gets called 
>>and... ttyname fails. :-)
>>
>>Now, dup2() implementation seems to differ between libc_r and libthr 
>>(though I'm open to be shown that is not so -- I don't quite understand 
>>how things work here).
>>
>>I have verified that by preventing execution of 
>>/usr/local/bin/konsole_grantpty (by the simple artifice of renaming it), 
>>the problem DOES NOT HAPPEN.
>>
>>Now... to find out what's different between both dup2() implementations...
> 
> 
> does it work with kse?

/me sighs

Ok, ok, I'll test it. And I tested it.

Now, libkse had problems freezing konsole at one time. I don't know 
about now, but that's another matter anyway.

Both libkse and libthr behave identically with regards to the problem I 
described. In both dup2() works, resulting in later failure of 
ttyname(), and in both just renaming /usr/local/bin/konsole_grantpty 
results in ttyname() working again.

-- 
Daniel C. Sobral                   (8-DCS)
Gerencia de Operacoes
Divisao de Comunicacao de Dados
Coordenacao de Seguranca
VIVO Centro Oeste Norte
Fones: 55-61-313-7654/Cel: 55-61-9618-0904
E-mail: Daniel.Capo at tco.net.br
         Daniel.Sobral at tcoip.com.br
         dcs at tcoip.com.br

Outros:
	dcs at newsguy.com
	dcs at freebsd.org
	capo at notorious.bsdconspiracy.net

Class schedules are designed so that every student will
waste the maximum time between classes.