libmisc/shell: Fix the handling of joel scripts in telnet

- Fix the passing of std[in/out] to child threads
- Fix deleting of managed memory in the key destructor
- Only set the key in the main loop thread
- Only allocate a shell env outside of the main loop
- Fix memory leak if the task start fails
- Remove error level from shell env, it cannot be returned this way. Add
  exit_code but the API is broken so it cannot be returned.

Closes #3859

1 files changed, 6 insertions, 1 deletions

diff --git a/cpukit/include/rtems/shell.h b/cpukit/include/rtems/shell.h
index 973db16605..d705dcb0a7 100644
--- a/cpukit/include/rtems/shell.h
+++ b/cpukit/include/rtems/shell.h
@@ -220,16 +220,21 @@ extern rtems_status_code rtems_shell_script(
 typedef struct {
   /** 'S','E','N','V': Shell Environment */
   rtems_name magic;
+  bool managed;
   const char *devname;
   const char *taskname;
   bool exit_shell; /* logout */
   bool forever; /* repeat login */
-  int errorlevel;
+  int *exit_code;
+  bool exit_on_error;
   bool echo;
   char cwd[256];
   const char *input;
   const char *output;
   bool output_append;
+  FILE *parent_stdin;
+  FILE *parent_stdout;
+  FILE *parent_stderr;
   rtems_id wake_on_end;
   rtems_shell_login_check_t login_check;