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Diffstat (limited to 'apps/examples/ftpc/ftpc_main.c')
-rwxr-xr-x | apps/examples/ftpc/ftpc_main.c | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/apps/examples/ftpc/ftpc_main.c b/apps/examples/ftpc/ftpc_main.c new file mode 100755 index 000000000..e80b80a0c --- /dev/null +++ b/apps/examples/ftpc/ftpc_main.c @@ -0,0 +1,410 @@ +/****************************************************************************
+ * examples/ftpc/ftpc_main.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 NuttX 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <arpa/inet.h>
+#include <apps/ftpc.h>
+
+#include "ftpc.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define FTPC_MAX_ARGUMENTS 3
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct cmdmap_s
+{
+ const char *cmd; /* Name of the command */
+ cmd_t handler; /* Function that handles the command */
+ uint8_t minargs; /* Minimum number of arguments (including command) */
+ uint8_t maxargs; /* Maximum number of arguments (including command) */
+ const char *usage; /* Usage instructions for 'help' command */
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const char g_delim[] = " \t\n";
+
+static int cmd_help(SESSION handle, int argc, char **argv);
+static int cmd_unrecognized(SESSION handle, int argc, char **argv);
+
+static const struct cmdmap_s g_cmdmap[] =
+{
+ { "cd", cmd_chdir, 2, 2, "<directory>" },
+ { "chmod", cmd_chmod, 3, 3, "<permissions> <path>" },
+ { "get", cmd_unlink, 2, 3, "<rname> [<lname>]" },
+ { "help", cmd_help, 1, 2, "" },
+ { "idle", cmd_idle, 1, 2, "[<idletime>]" },
+ { "login", cmd_login, 2, 3, "<uname> [<password>]" },
+ { "ls", cmd_login, 1, 2, "[<dirpath>]" },
+ { "quit", cmd_login, 1, 1, "" },
+ { "mkdir", cmd_mkdir, 2, 2, "<directory>" },
+ { "noop", cmd_noop, 1, 1, "" },
+ { "put", cmd_unlink, 2, 3, "<lname> [<rname>]" },
+ { "pwd", cmd_rpwd, 1, 1, "" },
+ { "rename", cmd_rename, 3, 3, "<oldname> <newname>" },
+ { "rhelp", cmd_rhelp, 1, 2, "[<command>]" },
+ { "rm", cmd_unlink, 2, 2, "" },
+ { "rmdir", cmd_rmdir, 2, 2, "<directory>" },
+ { "size", cmd_size, 2, 2, "<filepath>" },
+ { "time", cmd_time, 2, 2, "<filepath>" },
+ { "up", cmd_cdup, 1, 1, "" },
+};
+
+static char g_line[CONFIG_FTPC_LINELEN];
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: cmd_help
+ ****************************************************************************/
+
+static int cmd_help(SESSION handle, int argc, char **argv)
+{
+ const struct cmdmap_s *ptr;
+
+ printf("Local FTPC commands:\n");
+ for (ptr = g_cmdmap; ptr->cmd; ptr++)
+ {
+ if (ptr->usage)
+ {
+ printf(" %s %s\n", ptr->cmd, ptr->usage);
+ }
+ else
+ {
+ printf(" %s\n", ptr->cmd);
+ }
+ }
+ return OK;
+}
+
+/****************************************************************************
+ * Name: cmd_unrecognized
+ ****************************************************************************/
+
+static int cmd_unrecognized(SESSION handle, int argc, char **argv)
+{
+ printf("Command %s unrecognized\n", argv[0]);
+ return ERROR;
+}
+
+/****************************************************************************
+ * Name: ftpc_argument
+ ****************************************************************************/
+
+char *ftpc_argument(char **saveptr)
+{
+ char *pbegin = *saveptr;
+ char *pend = NULL;
+ const char *term;
+
+ /* Find the beginning of the next token */
+
+ for (;
+ *pbegin && strchr(g_delim, *pbegin) != NULL;
+ pbegin++);
+
+ /* If we are at the end of the string with nothing
+ * but delimiters found, then return NULL.
+ */
+
+ if (!*pbegin)
+ {
+ return NULL;
+ }
+
+ /* Does the token begin with '#' -- comment */
+
+ else if (*pbegin == '#')
+ {
+ /* Return NULL meaning that we are at the end of the line */
+
+ *saveptr = pbegin;
+ pbegin = NULL;
+ }
+ else
+ {
+ /* Otherwise, we are going to have to parse to find the end of
+ * the token. Does the token begin with '"'?
+ */
+
+ if (*pbegin == '"')
+ {
+ /* Yes.. then only another '"' can terminate the string */
+
+ pbegin++;
+ term = "\"";
+ }
+ else
+ {
+ /* No, then any of the usual terminators will terminate the argument */
+
+ term = g_delim;
+ }
+
+ /* Find the end of the string */
+
+ for (pend = pbegin + 1;
+ *pend && strchr(term, *pend) == NULL;
+ pend++);
+
+ /* pend either points to the end of the string or to
+ * the first delimiter after the string.
+ */
+
+ if (*pend)
+ {
+ /* Turn the delimiter into a null terminator */
+
+ *pend++ = '\0';
+ }
+
+ /* Save the pointer where we left off */
+
+ *saveptr = pend;
+
+ }
+
+ /* Return the beginning of the token. */
+
+ return pbegin;
+}
+
+/****************************************************************************
+ * Name: ftpc_execute
+ ****************************************************************************/
+
+static int ftpc_execute(SESSION handle, int argc, char *argv[])
+{
+ const struct cmdmap_s *cmdmap;
+ const char *cmd;
+ cmd_t handler = cmd_unrecognized;
+ int ret;
+
+ /* The form of argv is:
+ *
+ * argv[0]: The command name. This is argv[0] when the arguments
+ * are, finally, received by the command handler
+ * argv[1]: The beginning of argument (up to FTPC_MAX_ARGUMENTS)
+ * argv[argc]: NULL terminating pointer
+ */
+
+ cmd = argv[0];
+
+ /* See if the command is one that we understand */
+
+ for (cmdmap = g_cmdmap; cmdmap->cmd; cmdmap++)
+ {
+ if (strcmp(cmdmap->cmd, cmd) == 0)
+ {
+ /* Check if a valid number of arguments was provided. We
+ * do this simple, imperfect checking here so that it does
+ * not have to be performed in each command.
+ */
+
+ if (argc < cmdmap->minargs)
+ {
+ /* Fewer than the minimum number were provided */
+
+ printf("Too few arguments for '%s'\n", cmd);
+ return ERROR;
+ }
+ else if (argc > cmdmap->maxargs)
+ {
+ /* More than the maximum number were provided */
+
+ printf("Too many arguments for '%s'\n", cmd);
+ return ERROR;
+ }
+ else
+ {
+ /* A valid number of arguments were provided (this does
+ * not mean they are right).
+ */
+
+ handler = cmdmap->handler;
+ break;
+ }
+ }
+ }
+
+ ret = handler(handle, argc, argv);
+ if (ret < 0)
+ {
+ printf("%s failed: %d\n", cmd, errno);
+ }
+ return ret;
+}
+
+/****************************************************************************
+ * Name: ftpc_parse
+ ****************************************************************************/
+
+int ftpc_parse(SESSION handle, char *cmdline)
+{
+ FAR char *argv[FTPC_MAX_ARGUMENTS];
+ FAR char *saveptr;
+ FAR char *cmd;
+ int argc;
+ int ret;
+
+ /* Initialize parser state */
+
+ memset(argv, 0, FTPC_MAX_ARGUMENTS*sizeof(FAR char *));
+
+ /* Parse out the command at the beginning of the line */
+
+ saveptr = cmdline;
+ cmd = ftpc_argument(&saveptr);
+
+ /* Check if any command was provided -OR- if command processing is
+ * currently disabled.
+ */
+
+ if (!cmd)
+ {
+ /* An empty line is not an error */
+
+ return OK;
+ }
+
+ /* Parse all of the arguments following the command name. */
+
+ argv[0] = cmd;
+ for (argc = 1; argc < FTPC_MAX_ARGUMENTS; argc++)
+ {
+ argv[argc] = ftpc_argument(&saveptr);
+ if (!argv[argc])
+ {
+ break;
+ }
+ }
+ argv[argc] = NULL;
+
+ /* Check if the maximum number of arguments was exceeded */
+
+ if (argc > FTPC_MAX_ARGUMENTS)
+ {
+ printf("Too many arguments\n");
+ ret = -EINVAL;
+ }
+ else
+ {
+ /* Then execute the command */
+
+ ret = ftpc_execute(handle, argc, argv);
+ }
+
+ return ret;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int ftpc_main(int argc, char **argv, char **envp)
+{
+ struct ftpc_connect_s connect = {{0}, 0};
+ SESSION handle;
+ FAR char *ptr;
+
+ if (argc != 2)
+ {
+ printf("Usage:\n");
+ printf(" %s xx.xx.xx.xx[:pp]\n", argv[0]);
+ printf("Where\n");
+ printf(" xx.xx.xx.xx is the IP address of the FTP server\n");
+ printf(" pp is option port to use with the FTP server\n");
+ exit(1);
+ }
+
+ ptr = strchr(argv[1], ':');
+ if (ptr)
+ {
+ *ptr = '\0';
+ connect.port = atoi(ptr+1);
+ }
+ connect.addr.s_addr = inet_addr(argv[1]);
+
+ handle = ftpc_connect(&connect);
+ if (!handle)
+ {
+ printf("Failed to connect to the server: %d\n", errno);
+ exit(1);
+ }
+
+ /* Present a greeting */
+
+ printf("FTPC:\n");
+ FFLUSH();
+
+ /* Then enter the command line parsing loop */
+
+ for (;;)
+ {
+ /* Display the prompt string */
+
+ fputs("FTPC>", stdout);
+ FFLUSH();
+
+ /* Get the next line of input */
+
+ if (fgets(g_line, CONFIG_FTPC_LINELEN, stdin))
+ {
+ /* Parse process the command */
+
+ (void)ftpc_parse(handle, g_line);
+ FFLUSH();
+ }
+ }
+
+ return 0;
+}
\ No newline at end of file |