static void i2c_teardown(FAR struct i2ctool_s *i2ctool)
{
fflush(OUTSTREAM(&g_i2ctool));
#ifdef CONFIG_I2CTOOL_OUTDEV
fclose(i2ctool->ss_outstream);
#endif
}
int i2ctool_printf(FAR struct i2ctool_s *i2ctool, const char *fmt, ...)
{
va_list ap;
int ret;
va_start(ap, fmt);
ret = vfprintf(OUTSTREAM(i2ctool), fmt, ap);
va_end(ap);
return ret;
}
ssize_t i2ctool_write(FAR struct i2ctool_s *i2ctool, FAR const void *buffer, size_t nbytes)
{
ssize_t ret;
/* Write the data to the output stream */
ret = fwrite(buffer, 1, nbytes, OUTSTREAM(i2ctool));
if (ret < 0)
{
dbg("[%d] Failed to send buffer: %d\n", OUTFD(i2ctool), errno);
}
return ret;
}
void i2ctool_flush(FAR struct i2ctool_s *i2ctool)
{
fflush(OUTSTREAM(i2ctool));
}
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_login(FAR struct console_stdio_s *pstate)
{
char username[16];
char password[16];
int ret;
int i;
/* Loop for the configured number of retries */
for (i = 0; i < CONFIG_NSH_LOGIN_FAILCOUNT; i++)
{
/* Ask for the login username */
fputs(g_userprompt, pstate->cn_outstream);
fflush(pstate->cn_outstream);
#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
username[0] = '\0';
if (ret != EOF)
{
/* Parse out the username */
nsh_token(pstate, username, sizeof(username));
}
/* Ask for the login password */
fputs(g_passwordprompt, pstate->cn_outstream);
fflush(pstate->cn_outstream);
password[0] = '\0';
if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, INSTREAM(pstate)) != NULL)
{
/* Parse out the password */
nsh_token(pstate, password, sizeof(password));
/* Verify the username and password */
#if defined(CONFIG_NSH_LOGIN_PASSWD)
ret = passwd_verify(username, password);
if (PASSWORD_VERIFY_MATCH(ret))
#elif defined(CONFIG_NSH_LOGIN_PLATFORM)
ret = platform_user_verify(username, password);
if (PASSWORD_VERIFY_MATCH(ret))
#elif defined(CONFIG_NSH_LOGIN_FIXED)
if (strcmp(password, CONFIG_NSH_LOGIN_PASSWORD) == 0 &&
strcmp(username, CONFIG_NSH_LOGIN_USERNAME) == 0)
#else
# error No user verification method selected
#endif
{
fputs(g_loginsuccess, pstate->cn_outstream);
fflush(pstate->cn_outstream);
return OK;
}
else
{
fputs(g_badcredentials, pstate->cn_outstream);
fflush(pstate->cn_outstream);
#if CONFIG_NSH_LOGIN_FAILDELAY > 0
usleep(CONFIG_NSH_LOGIN_FAILDELAY * 1000L);
#endif
}
}
}
/* Too many failed login attempts */
fputs(g_loginfailure, pstate->cn_outstream);
fflush(pstate->cn_outstream);
return -1;
}
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;
}
