telnetd
Joel Sherrill <joel@OARcorp.com>
joel.sherrill at OARcorp.com
Mon Sep 20 13:39:19 UTC 2004
Fernando RUIZ CASAS wrote:
> On Fri, 17 Sep 2004 11:28:30 -0500
> "Joel Sherrill <joel at OARcorp.com>" <joel.sherrill at OARcorp.com> wrote:
>
>> Steve Holle wrote:
>>
>>> At 02:27 AM 9/17/2004, Fernando RUIZ CASAS wrote:
>>>
>>>> Hi,
>>>> But you must put attention.
>>>>
>>>> When the session is closed a delete_task_var in automatic free
>>>> when close can crash the memory.
>>>> This is a bad behavior for this option.
>>>
>>>
>>>
>>> I'm not sure I quite understand your message. Am I using the
>>> rtems_initialize_telnetd(); incorrectly?
>>
>>
>> When a task is deleted, the RTEMS task variable code calls a
>> user provided destructor on the variable. The code in telnetd
>> was not updated after it was changed (if I remember correctly)
>> from a * to a ** passed in. I think that's what he is referring
>> to.
>>
>> Fernando.. have you moved? I didn't remember you being in
>> France.
>>
> Hi, I'm in France.
> The comment is about a lot of changes had in the libio_private_env.
> The task var delete free option (destructor) in automatic mode passed
> like parameter in the rtems_create_task_var crash.
> But this is a concern related by Till Staumam with his telnetd V 1.1 and
> there he proposes an forever = TRUE in order to avoid the system crash
> when the logout kill the task and the task var variable (private session
> environment).
I would like to not see two telnetd variations for RTEMS. I thought
Till's was a modified version of yours. How od you feel about his
version? If his modifications are OK by you and improve it, I would
like to merge TIll's modifications.
> See you.
>
>>
>>> I did get it to build, by the way, and I'm not sure how.
>>>
>>>
>>>> See you.
>>>>
>>>> Fernando RUIZ.
>>>>
>>>>
>>>> On Thu, 16 Sep 2004 12:06:03 -0500
>>>> "Joel Sherrill <joel at OARcorp.com>" <joel.sherrill at OARcorp.com> wrote:
>>>>
>>>>> Steve Holle wrote:
>>>>>
>>>>>> Can anyone tell me how to enable telnetd ? I've used the same
>>>>>> technique I used on the other network functions as shown in the
>>>>>> code below :
>>>>>> #ifdef ENABLE_NETWORKING
>>>>>> std::cout << " Starting : Network
>>>>>> Initialization..." << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> rtems_bsdnet_initialize_network ();
>>>>>> std::cout << " Completed : Network
>>>>>> Initialization." << std::endl << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> #endif
>>>>>> #ifdef ENABLE_FTPD
>>>>>> std::cout << " Starting : FTP Initialization..."
>>>>>> << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> rtems_initialize_ftpd();
>>>>>> std::cout << " Completed : FTP Initialization."
>>>>>> << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> unsigned long temp = (unsigned long)&TARFILE_SIZE ;
>>>>>> status = Untar_FromMemory((unsigned char
>>>>>> *)(&TARFILE_START), temp);
>>>>>> #endif
>>>>>>
>>>>>> #ifdef ENABLE_WEB_SERVER
>>>>>> std::cout << " Starting : Webserver
>>>>>> Initialization..." << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> rtems_initialize_webserver();
>>>>>> std::cout << " Completed : Webserver
>>>>>> Initialization." << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> #endif
>>>>>> #ifdef ENABLE_TELNETD_SERVER
>>>>>> int rtems_initialize_telnetd ( void ) ;
>>>>>> std::cout << " Starting : Telnet
>>>>>> Initialization..." << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> rtems_initialize_telnetd();
>>>>>> std::cout << " Completed : Telnet
>>>>>> Initialization." << std::endl ;
>>>>>> std::cout.flush() ;
>>>>>> #endif
>>>>>>
>>>>>> I can find the source for rtems_initialize_telnetd in the source
>>>>>> tree but when I try to build I get the following error :
>>>>>>
>>>>>> C++ compiling /tcb2/source/BuildDateTime.cc...
>>>>>> Creating tcb2-debug.elf (linking)...
>>>>>> ConfigureNetwork.o: In function `ConfigureNetwork()':
>>>>>> ConfigureNetwork.o(.text+0x654): undefined reference to
>>>>>> `rtems_initialize_telnet
>>>>>> d()'
>>>>>> collect2: ld returned 1 exit status
>>>>>> make[1]: *** [tcb2-debug.elf] Error 1
>>>>>> make: *** [build] Error 2
>>>>>> It appears that telnetd is not included in the rtems build but I
>>>>>> can't figure out how to get it included.
>>>>>> Any ideas?
>>>>>
>>>>>
>>>>> None here. I just checked some build logs on the 4.6 tree and
>>>>> telnetd.c is definitely being compiled. The call is there.
>>>>> Can you do something like this?
>>>>> XXX-rtems-nm --extern-only .../librtemsbsp.a | grep telnet
>>>>> /opt/rtems-4.6/bin/mips-rtems-nm --extern-only
>>>>> /opt/rtems-4.6/mips-rtems/jmr3904/lib/librtemsbsp.a | grep telnet
>>>>> telnetd.o:
>>>>> 000002a0 T main_telnetd
>>>>> 00000374 T register_telnetd
>>>>> 000001b8 T rtems_initialize_telnetd
>>>>> 00000000 T rtems_task_telnetd
>>>>> 00000004 D telnetd_stack_size
>>>>> 00000000 D telnetd_task_id
>>>>> 00000008 D telnetd_task_priority
>>>>> So that symbol is definitely in the mips/jmr3904 I had installed.
>>>>>
>>>>>> Steve Holle
>>>>>> Link Communications, Inc.
>>>>>> 1035 Cerise Rd.
>>>>>> Billings, MT 59101
>>>>>> sholle at link-comm.com
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Joel Sherrill, Ph.D. Director of Research & Development
>>>>> joel at OARcorp.com On-Line Applications Research
>>>>> Ask me about RTEMS: a free RTOS Huntsville AL 35805
>>>>> Support Available (256) 722-9985
>>>>
>>>>
>>>>
>>>> 51, Le clos des G?ts
>>>> Rue de la gare
>>>> 69730 Genay
>>>> France
>>>> EMAIL: correo At fernando-ruiz Dot com
>>>
>>>
>>>
>>> Steve Holle
>>> Link Communications, Inc.
>>> 1035 Cerise Rd.
>>> Billings, MT 59101
>>> sholle at link-comm.com
>>
>>
>>
>> --
>> Joel Sherrill, Ph.D. Director of Research & Development
>> joel at OARcorp.com On-Line Applications Research
>> Ask me about RTEMS: a free RTOS Huntsville AL 35805
>> Support Available (256) 722-9985
>>
>
> 51, Le clos des G?ts
> Rue de la gare
> 69730 Genay
> France
> EMAIL: correo At fernando-ruiz Dot com
--
Joel Sherrill, Ph.D. Director of Research & Development
joel at OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985
More information about the users
mailing list