Rtems telnetd/shell question

Peter Dufault dufault at hda.com
Tue Oct 27 09:31:32 UTC 2009

I'm trying to use the RTEMS shell with the RTEMS telnetd, and it hangs  
when I close down telnet.  If I close down the telnet session the  
shell task that was spawned by telnetd gets stuck forever in  
rtems_shell_line_editor() in the "empty line" logic at line 755 where  
it thinks it read a blank line, tries to prompt and doesn't see the  
error, and loops forever.

I'm initializing it simply, similar to an example I saw:

static void sh_wrap( char *dev, void *arg)

rtems_telnetd_config_table rtems_telnetd_config = {
     sh_wrap,                /* Command */
     NULL,                   /* Argument */
     0,                      /* Priority */
     RTEMS_MINIMUM_STACK_SIZE * 16, /* task stack size */
     0,                      /* Login check */
     0                       /* Keep stdio of the caller  */


I can't "exit" the telnet shell, either, it just restarts itself  
without closing the telnet connection.  I tried detecting the error  
when the shell printed the prompt and treating it as an EOF but that  
doesn't help, it must be trying to restart itself.


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