forked from Archive/PX4-Autopilot
456 lines
12 KiB
C
456 lines
12 KiB
C
|
/****************************************************************************
|
||
|
|
* examples/ftpc/ftpc_main.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2011-2012 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 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 <unistd.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
#include <arpa/inet.h>
|
||
|
|
#include <apps/ftpc.h>
|
||
|
|
|
||
|
|
#include <apps/readline.h>
|
||
|
|
|
||
|
|
#include "ftpc.h"
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Pre-processor Definitions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#define FTPC_MAX_ARGUMENTS 4
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* 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_lhelp(SESSION handle, int argc, char **argv);
|
||
|
|
static int cmd_lunrecognized(SESSION handle, int argc, char **argv);
|
||
|
|
|
||
|
|
static const struct cmdmap_s g_cmdmap[] =
|
||
|
|
{
|
||
|
|
{ "cd", cmd_rchdir, 2, 2, "<directory>" },
|
||
|
|
{ "chmod", cmd_rchmod, 3, 3, "<permissions> <path>" },
|
||
|
|
{ "get", cmd_rget, 2, 4, "[-a|b] <rname> [<lname>]" },
|
||
|
|
{ "help", cmd_lhelp, 1, 2, "" },
|
||
|
|
{ "idle", cmd_ridle, 1, 2, "[<idletime>]" },
|
||
|
|
{ "login", cmd_rlogin, 2, 3, "<uname> [<password>]" },
|
||
|
|
{ "ls", cmd_rls, 1, 2, "[<dirpath>]" },
|
||
|
|
{ "quit", cmd_rquit, 1, 1, "" },
|
||
|
|
{ "mkdir", cmd_rmkdir, 2, 2, "<directory>" },
|
||
|
|
{ "noop", cmd_rnoop, 1, 1, "" },
|
||
|
|
{ "put", cmd_rput, 2, 4, "[-a|b] <lname> [<rname>]" },
|
||
|
|
{ "pwd", cmd_rpwd, 1, 1, "" },
|
||
|
|
{ "rename", cmd_rrename, 3, 3, "<oldname> <newname>" },
|
||
|
|
{ "rhelp", cmd_rhelp, 1, 2, "[<command>]" },
|
||
|
|
{ "rm", cmd_runlink, 2, 2, "" },
|
||
|
|
{ "rmdir", cmd_rrmdir, 2, 2, "<directory>" },
|
||
|
|
{ "size", cmd_rsize, 2, 2, "<filepath>" },
|
||
|
|
{ "time", cmd_rtime, 2, 2, "<filepath>" },
|
||
|
|
{ "up", cmd_rcdup, 1, 1, "" },
|
||
|
|
{ NULL, NULL, 1, 1, NULL }
|
||
|
|
};
|
||
|
|
|
||
|
|
static char g_line[CONFIG_FTPC_LINELEN];
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Private Functions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: cmd_lhelp
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
static int cmd_lhelp(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_lunrecognized
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
static int cmd_lunrecognized(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_lunrecognized;
|
||
|
|
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+1];
|
||
|
|
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;
|
||
|
|
#ifndef CONFIG_EXAMPLES_FTPC_FGETS
|
||
|
|
int ret;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check if the argument includes a port number */
|
||
|
|
|
||
|
|
ptr = strchr(argv[1], ':');
|
||
|
|
if (ptr)
|
||
|
|
{
|
||
|
|
*ptr = '\0';
|
||
|
|
connect.port = atoi(ptr+1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* In any event, we can now extract the IP address from the comman-line */
|
||
|
|
|
||
|
|
connect.addr.s_addr = inet_addr(argv[1]);
|
||
|
|
|
||
|
|
/* Connect to the FTP server */
|
||
|
|
|
||
|
|
handle = ftpc_connect(&connect);
|
||
|
|
if (!handle)
|
||
|
|
{
|
||
|
|
printf("Failed to connect to the server: %d\n", errno);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Present a greeting */
|
||
|
|
|
||
|
|
printf("NuttX FTP Client:\n");
|
||
|
|
FFLUSH();
|
||
|
|
|
||
|
|
/* Setting optind to -1 is a non-standard, backdoor way to reinitialize
|
||
|
|
* getopt(). getopt() is not thread safe and we have no idea what state
|
||
|
|
* it is in now!
|
||
|
|
*/
|
||
|
|
|
||
|
|
optind = -1;
|
||
|
|
|
||
|
|
/* Then enter the command line parsing loop */
|
||
|
|
|
||
|
|
for (;;)
|
||
|
|
{
|
||
|
|
/* Display the prompt string */
|
||
|
|
|
||
|
|
fputs("nfc> ", stdout);
|
||
|
|
FFLUSH();
|
||
|
|
|
||
|
|
/* Get the next line of input */
|
||
|
|
|
||
|
|
#ifdef CONFIG_EXAMPLES_FTPC_FGETS
|
||
|
|
/* fgets returns NULL on end-of-file or any I/O error */
|
||
|
|
|
||
|
|
if (fgets(g_line, CONFIG_FTPC_LINELEN, stdin) == NULL)
|
||
|
|
{
|
||
|
|
printf("ERROR: fgets failed: %d\n", errno);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
ret = readline(g_line, CONFIG_FTPC_LINELEN, stdin, stdout);
|
||
|
|
|
||
|
|
/* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (ret <= 0)
|
||
|
|
{
|
||
|
|
printf("ERROR: readline failed: %d\n", ret);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Parse and process the command */
|
||
|
|
|
||
|
|
(void)ftpc_parse(handle, g_line);
|
||
|
|
FFLUSH();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|