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;
}
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_login(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) */
fputs(g_nshgreeting, pstate->cn_outstream);
#ifdef CONFIG_NSH_MOTD
# ifdef CONFIG_NSH_PLATFORM_MOTD
/* Output the platform message of the day */
platform_motd(vtbl->iobuffer, IOBUFFERSIZE);
fprintf(pstate->cn_outstream, "%s\n", vtbl->iobuffer);
# else
/* Output the fixed message of the day */
fprintf(pstate->cn_outstream, "%s\n", g_nshmotd);
# endif
#endif
fflush(pstate->cn_outstream);
/* Execute the login script */
#ifdef CONFIG_NSH_ROMFSRC
(void)nsh_loginscript(vtbl);
#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 */
fputs(g_nshprompt, pstate->cn_outstream);
fflush(pstate->cn_outstream);
/* 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,
INSTREAM(pstate), OUTSTREAM(pstate));
#else
ret = readline(pstate->cn_line, CONFIG_NSH_LINELEN,
INSTREAM(pstate), OUTSTREAM(pstate));
#endif
if (ret != EOF)
{
/* Parse process the command */
(void)nsh_parse(vtbl, pstate->cn_line);
fflush(pstate->cn_outstream);
}
/* 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
{
fprintf(pstate->cn_outstream, g_fmtcmdfailed, "nsh_session",
"readline", NSH_ERRNO_OF(-ret));
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
}
/* 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;
}
int nsh_consolemain(int argc, char *argv[])
{
FAR struct console_stdio_s *pstate = nsh_newconsole();
int ret;
DEBUGASSERT(pstate);
/* If we are using a USB serial console, then we will have to wait for the
* USB to be connected to the host.
*/
#ifdef HAVE_USB_CONSOLE
ret = nsh_usbconsole();
DEBUGASSERT(ret == OK);
#endif
/* Present a greeting */
fputs(g_nshgreeting, pstate->cn_outstream);
fflush(pstate->cn_outstream);
/* Execute the startup script */
#ifdef CONFIG_NSH_ROMFSETC
(void)nsh_script(&pstate->cn_vtbl, "init", NSH_INITPATH);
#endif
/* Then enter the command line parsing loop */
for (;;)
{
/* For the case of debugging the USB console... dump collected USB trace data */
nsh_usbtrace();
/* Display the prompt string */
fputs(g_nshprompt, pstate->cn_outstream);
fflush(pstate->cn_outstream);
/* Get the next line of input */
ret = readline(pstate->cn_line, CONFIG_NSH_LINELEN,
INSTREAM(pstate), OUTSTREAM(pstate));
if (ret > 0)
{
/* Parse process the command */
(void)nsh_parse(&pstate->cn_vtbl, pstate->cn_line);
fflush(pstate->cn_outstream);
}
/* Readline normally returns the number of characters read,
* but will return 0 on end of file or a negative value
* if an error occurs. Either will cause the session to
* terminate.
*/
else
{
fprintf(pstate->cn_outstream, g_fmtcmdfailed, "nsh_consolemain",
"readline", NSH_ERRNO_OF(-ret));
nsh_exit(&pstate->cn_vtbl, 1);
}
}
/* Clean up. We do not get here, but this is necessary to keep some
* compilers happy. But others will complain that this code is not
* reachable.
*/
nsh_exit(&pstate->cn_vtbl, 0);
return OK;
}
