コード例 #1
0
int nsh_session(FAR struct console_stdio_s *pstate)
{
  int ret;

  DEBUGASSERT(pstate);

  /* Present a greeting */

  printf("%s", g_nshgreeting);

  /* Then enter the command line parsing loop */

  for (;;)
    {
      /* For the case of debugging the USB console... dump collected USB trace data */

#ifdef CONFIG_NSH_USBDEV_TRACE
      nsh_usbtrace();
#endif

      /* Display the prompt string */

      printf("%s", g_nshprompt);

      /* Get the next line of input. readline() returns EOF on end-of-file
       * or any read failure.
       */

#ifdef CONFIG_NSH_CLE
      ret = cle(pstate->cn_line, CONFIG_NSH_LINELEN,
                stdin, stdout);
#else
      ret = std_readline(pstate->cn_line, CONFIG_NSH_LINELEN);
#endif
      if (ret != EOF)
        {
          /* Parse process the command */

          (void)nsh_parse(&pstate->cn_vtbl, pstate->cn_line);
        }

      /* Readline normally returns the number of characters read,
       * but will return EOF on end of file or if an error occurs.
       * EOF will cause the session to terminate.
       */

      else
        {
          printf(g_fmtcmdfailed, "nsh_session", "readline", NSH_ERRNO_OF(-ret));
          return EXIT_SUCCESS;
        }
    }

  /* We do not get here, but this is necessary to keep some compilers happy.
   * But others will complain that this code is not reachable.
   */

  return EXIT_SUCCESS;
}
コード例 #2
0
ファイル: nsh_stdsession.c プロジェクト: hll4fork/nuttx-apps
int nsh_session(FAR struct console_stdio_s *pstate)
{
  FAR struct nsh_vtbl_s *vtbl;
  int ret;

  DEBUGASSERT(pstate);
  vtbl = &pstate->cn_vtbl;

#ifdef CONFIG_NSH_CONSOLE_LOGIN
  /* Login User and Password Check */

  if (nsh_stdlogin(pstate) != OK)
    {
      nsh_exit(vtbl, 1);
      return -1; /* nsh_exit does not return */
    }
#endif /* CONFIG_NSH_CONSOLE_LOGIN */

  /* Present a greeting and possibly a Message of the Day (MOTD) */

  printf("%s", g_nshgreeting);

#ifdef CONFIG_NSH_MOTD
# ifdef CONFIG_NSH_PLATFORM_MOTD
  /* Output the platform message of the day */

  platform_motd(vtbl->iobuffer, IOBUFFERSIZE);
  printf("%s\n", vtbl->iobuffer);

# else
  /* Output the fixed message of the day */

  printf("%s\n", g_nshmotd);

# endif
#endif

  /* Then enter the command line parsing loop */

  for (;;)
    {
      /* For the case of debugging the USB console... dump collected USB trace data */

#ifdef CONFIG_NSH_USBDEV_TRACE
      nsh_usbtrace();
#endif

      /* Display the prompt string */

      printf("%s", g_nshprompt);

      /* Get the next line of input. readline() returns EOF on end-of-file
       * or any read failure.
       */

#ifdef CONFIG_NSH_CLE
      ret = cle(pstate->cn_line, CONFIG_NSH_LINELEN,
                stdin, stdout);
#else
      ret = std_readline(pstate->cn_line, CONFIG_NSH_LINELEN);
#endif
      if (ret != EOF)
        {
          /* Parse process the command */

          (void)nsh_parse(vtbl, pstate->cn_line);
        }

      /* Readline normally returns the number of characters read,
       * but will return EOF on end of file or if an error occurs.
       * EOF will cause the session to terminate.
       */

      else
        {
          printf(g_fmtcmdfailed, "nsh_session", "readline", NSH_ERRNO_OF(-ret));
          return EXIT_SUCCESS;
        }
    }

  /* We do not get here, but this is necessary to keep some compilers happy.
   * But others will complain that this code is not reachable.
   */

  return EXIT_SUCCESS;
}