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+/****************************************************************************
+ * examples/telnetd/shell.c
+ *
+ * Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <netinet/in.h>
+
+#include <apps/netutils/uiplib.h>
+#include <apps/netutils/ftpd.h>
+
+#include "ftpd.h"
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const struct fptd_account_s g_ftpdaccounts[] =
+{
+ { FTPD_ACCOUNTFLAG_SYSTEM, "root", "abc123", NULL },
+ { FTPD_ACCOUNTFLAG_GUEST, "ftp", NULL, NULL },
+ { FTPD_ACCOUNTFLAG_GUEST, "anonymous", NULL, NULL },
+};
+#define NACCOUNTS (sizeof(g_ftpdaccounts) / sizeof(struct fptd_account_s))
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* To minimize the probability of name collisitions, all FTPD example
+ * global data is maintained in a single instance of a structure.
+ */
+
+struct ftpd_globals_s g_ftpdglob;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+/****************************************************************************
+ * Name: fptd_netinit
+ ****************************************************************************/
+
+static void fptd_netinit(void)
+{
+#ifndef CONFIG_EXAMPLES_FTPD_NONETINIT
+ struct in_addr addr;
+#ifdef CONFIG_EXAMPLE_FTPD_NOMAC
+ uint8_t mac[IFHWADDRLEN];
+#endif
+
+/* Many embedded network interfaces must have a software assigned MAC */
+
+#ifdef CONFIG_EXAMPLE_FTPD_NOMAC
+ mac[0] = 0x00;
+ mac[1] = 0xe0;
+ mac[2] = 0xde;
+ mac[3] = 0xad;
+ mac[4] = 0xbe;
+ mac[5] = 0xef;
+ uip_setmacaddr("eth0", mac);
+#endif
+
+ /* Set up our host address */
+
+ addr.s_addr = HTONL(CONFIG_EXAMPLE_FTPD_IPADDR);
+ uip_sethostaddr("eth0", &addr);
+
+ /* Set up the default router address */
+
+ addr.s_addr = HTONL(CONFIG_EXAMPLE_FTPD_DRIPADDR);
+ uip_setdraddr("eth0", &addr);
+
+ /* Setup the subnet mask */
+
+ addr.s_addr = HTONL(CONFIG_EXAMPLE_FTPD_NETMASK);
+ uip_setnetmask("eth0", &addr);
+#endif /* CONFIG_EXAMPLES_FTPD_NONETINIT */
+}
+
+/****************************************************************************
+ * Name: ftpd_accounts
+ ****************************************************************************/
+
+static void ftpd_accounts(FTPD_SESSION handle)
+{
+ FAR const struct fptd_account_s *account;
+ int i;
+
+ printf("Adding accounts:\n");
+ for (i = 0; i < NACCOUNTS; i++)
+ {
+ account = &g_ftpdaccounts[i];
+
+ printf("%d. %s account: USER=%s PASSWORD=%s HOME=%s\n", i+1,
+ (account->flags & FTPD_ACCOUNTFLAG_SYSTEM) != 0 ? "Root" : "User",
+ (!account->user) ? "(none)" : account->user,
+ (!account->password) ? "(none)" : account->password,
+ (!account->home) ? "(none)" : account->home);
+
+ ftpd_adduser(handle, account->flags, account->user,
+ account->password, account->home);
+ }
+}
+
+/****************************************************************************
+ * Name: ftpd_daemon
+ ****************************************************************************/
+
+int ftpd_daemon(int s_argc, char **s_argv)
+{
+ FTPD_SESSION handle;
+ int ret;
+
+ /* The FTPD daemon has been started */
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+ g_ftpdglob.running = true;
+#endif
+ printf("FTP daemon [%d] started\n", g_ftpdglob.pid);
+
+ /* Open FTPD */
+
+ handle = ftpd_open();
+ if (!handle)
+ {
+ printf("FTP daemon [%d] failed to open FTPD\n", g_ftpdglob.pid);
+#ifdef CONFIG_NSH_BUILTIN_APPS
+ g_ftpdglob.running = false;
+ g_ftpdglob.stop = false;
+#endif
+ g_ftpdglob.pid = -1;
+ return EXIT_FAILURE;
+ }
+
+ /* Configure acounts */
+
+ (void)ftpd_accounts(handle);
+
+ /* Then drive the FTPD server. */
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+ while (g_ftpdglob.stop == 0)
+#else
+ for (;;)
+#endif
+ {
+ /* If ftpd_session returns success, it means that a new FTP session
+ * has been started.
+ */
+
+ ret = ftpd_session(handle, 5000);
+
+ /* If any interesting happened (i.e., any thing other than a timeout),
+ * then report the interesting event.
+ */
+
+ if (ret != -ETIMEDOUT)
+ {
+ printf("FTP daemon [%d] ftpd_session returned %d\n", g_ftpdglob.pid, ret);
+ }
+ }
+
+ /* Close the FTPD server and exit (we can get here only if
+ * CONFIG_NSH_BUILTIN_APPS is defined).
+ */
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+ printf("FTP daemon [%d] stopping\n", g_ftpdglob.pid);
+ g_ftpdglob.running = false;
+ g_ftpdglob.stop = false;
+ g_ftpdglob.pid = -1;
+ ftpd_close(handle);
+#endif
+ return EXIT_SUCCESS;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+/****************************************************************************
+ * Name: ftpd_main
+ ****************************************************************************/
+
+int ftpd_main(int s_argc, char **s_argv)
+{
+ /* Check if we have already initialized the network */
+
+ if (!g_ftpdglob.initialized)
+ {
+
+ /* Bring up the network */
+
+ printf("Initializing the network\n");
+ fptd_netinit();
+
+ /* Initialize daemon state */
+
+ g_ftpdglob.initialized = true;
+ g_ftpdglob.pid = -1;
+#ifdef CONFIG_NSH_BUILTIN_APPS
+ g_ftpdglob.stop = false;
+ g_ftpdglob.running = false;
+#endif
+ }
+
+ /* Then start the new daemon (if it is not already running) */
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+ if (g_ftpdglob.stop && g_ftpdglob.running)
+ {
+ printf("Waiting for FTP daemon [%d] to stop\n", g_ftpdglob.pid);
+ return EXIT_FAILURE;
+ }
+ else
+#endif
+ if (!g_ftpdglob.running)
+ {
+ printf("Starting the FTP daemon\n");
+ g_ftpdglob.pid = TASK_CREATE("FTP daemon", CONFIG_EXAMPLES_FTPD_PRIO,
+ CONFIG_EXAMPLES_FTPD_STACKSIZE,
+ ftpd_daemon, NULL);
+ if (g_ftpdglob.pid < 0)
+ {
+ printf("Failed to start the FTP daemon: %d\n", errno);
+ return EXIT_FAILURE;
+ }
+ }
+ else
+ {
+ printf("FTP daemon [%d] is running\n", g_ftpdglob.pid);
+ }
+
+ return EXIT_SUCCESS;
+}
+
+/****************************************************************************
+ * Name: ftpd_stop
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+int ftpd_stop(int s_argc, char **s_argv)
+{
+ if (!g_ftpdglob.initialized || !g_ftpdglob.running)
+ {
+ printf("The FTP daemon not running\n");
+ return EXIT_FAILURE;
+ }
+
+ printf("Stopping the FTP daemon, pid=%d\n", g_ftpdglob.pid);
+ g_ftpdglob.stop = true;
+ return EXIT_SUCCESS;
+}
+#endif
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