482 lines
13 KiB
C
482 lines
13 KiB
C
/****************************************************************************
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* apps/netutils/ftpc/ftpc_putfile.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "ftpc_config.h"
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <libgen.h>
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#include <errno.h>
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#include <debug.h>
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#include "netutils/ftpc.h"
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#include "ftpc_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ftpc_sendbinary
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*
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* Description:
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* Send a binary file to the remote host.
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*
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****************************************************************************/
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static int ftpc_sendbinary(FAR struct ftpc_session_s *session,
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FAR FILE *linstream, FILE *routstream)
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{
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ssize_t nread;
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ssize_t nwritten;
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/* Loop until the entire file is sent */
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for (;;)
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{
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/* Read data from the file */
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nread = fread(session->buffer, sizeof(char), CONFIG_FTP_BUFSIZE, linstream);
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if (nread <= 0)
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{
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/* nread == 0 is just EOF */
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if (nread < 0)
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{
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(void)ftpc_xfrabort(session, linstream);
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return ERROR;
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}
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/* Return success */
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return OK;
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}
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/* Send the data */
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nwritten = fwrite(session->buffer, sizeof(char), nread, routstream);
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if (nwritten != nread)
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{
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(void)ftpc_xfrabort(session, routstream);
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/* Return failue */
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return ERROR;
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}
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/* Increment the size of the file sent */
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session->size += nread;
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}
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}
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/****************************************************************************
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* Name: ftpc_sendtext
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*
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* Description:
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* Send a text file to the remote host.
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*
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****************************************************************************/
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static int ftpc_sendtext(FAR struct ftpc_session_s *session,
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FAR FILE *linstream, FAR FILE *routstream)
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{
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int ch;
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int ret = OK;
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/* Write characters one at a time. */
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while ((ch = fgetc(linstream)) != EOF)
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{
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/* If it is a newline, send a carriage return too */
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if (ch == '\n')
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{
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if (fputc('\r', routstream) == EOF)
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{
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(void)ftpc_xfrabort(session, routstream);
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ret = ERROR;
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break;
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}
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/* Increment the size of the file sent */
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session->size++;
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}
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/* Send the character */
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if (fputc(ch, routstream) == EOF)
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{
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(void)ftpc_xfrabort(session, routstream);
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ret = ERROR;
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break;
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}
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/* Increment the size of the file sent */
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session->size++;
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}
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return ret;
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}
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/****************************************************************************
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* Name: ftpc_sendfile
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*
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* Description:
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* Send the file to the remote host.
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*
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****************************************************************************/
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static int ftpc_sendfile(struct ftpc_session_s *session, const char *path,
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FILE *stream, uint8_t how, uint8_t xfrmode)
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{
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long offset = session->offset;
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#ifdef CONFIG_DEBUG_FEATURES
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FAR char *rname;
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FAR char *str;
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int len;
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#endif
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int ret;
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session->offset = 0;
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/* Were we asked to store a file uniquely? Does the host support the STOU
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* command?
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*/
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if (how == FTPC_PUT_UNIQUE && !FTPC_HAS_STOU(session))
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{
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/* We cannot store a file uniquely */
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return ERROR;
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}
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ftpc_xfrreset(session);
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FTPC_SET_PUT(session);
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/* Initialize for the transfer */
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ret = ftpc_xfrinit(session);
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if (ret != OK)
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{
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return ERROR;
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}
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ftpc_xfrmode(session, xfrmode);
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/* The REST command sets the start position in the file. Some servers
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* allow REST immediately before STOR for binary files.
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*/
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if (offset > 0)
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{
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ret = ftpc_cmd(session, "REST %ld", offset);
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session->size = offset;
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}
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/* Send the file using STOR, STOU, or APPE:
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*
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* - STOR request asks the server to receive the contents of a file from
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* the data connection already established by the client.
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* - APPE is just like STOR except that, if the file already exists, the
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* server appends the client's data to the file.
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* - STOU is just like STOR except that it asks the server to create a
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* file under a new pathname selected by the server. If the server
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* accepts STOU, it provides the pathname in a human-readable format in
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* the text of its response.
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*/
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switch (how)
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{
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case FTPC_PUT_UNIQUE:
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{
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ret = ftpc_cmd(session, "STOU %s", path);
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/* Check for "502 Command not implemented" */
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if (session->code == 502)
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{
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/* The host does not support the STOU command */
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FTPC_CLR_STOU(session);
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return ERROR;
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}
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/* Get the remote filename from the response */
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#ifdef CONFIG_DEBUG_FEATURES
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str = strstr(session->reply, " for ");
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if (str)
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{
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str += 5;
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len = strlen(str);
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if (len)
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{
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if (*str == '\'')
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{
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rname = strndup(str+1, len-3);
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}
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else
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{
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rname = strndup(str, len-1);
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ninfo("Unique filename is: %s\n", rname);
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}
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free(rname);
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}
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}
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#endif
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}
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break;
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case FTPC_PUT_APPEND:
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ret = ftpc_cmd(session, "APPE %s", path);
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break;
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case FTPC_PUT_NORMAL:
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default:
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ret = ftpc_cmd(session, "STOR %s", path);
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break;
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}
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/* If the server is willing to create a new file under that name, or
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* replace an existing file under that name, it responds with a mark
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* using code 150:
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*
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* - "150 File status okay; about to open data connection"
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*
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* It then attempts to read the contents of the file from the data
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* connection, and closes the data connection. Finally it accepts the STOR
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* with:
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*
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* - "226 Closing data connection" if the entire file was successfully
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* received and stored
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*
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* Or rejects the STOR with:
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*
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* - "425 Can't open data connection" if no TCP connection was established
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* - "426 Connection closed; transfer aborted" if the TCP connection was
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* established but then broken by the client or by network failure
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* - "451 Requested action aborted: local error in processing",
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* "452 - Requested action not taken", or "552 Requested file action
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* aborted" if the server had trouble saving the file to disk.
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*
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* The server may reject the STOR request with:
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*
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* - "450 Requested file action not taken", "452 - Requested action not
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* taken" or "553 Requested action not taken" without first responding
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* with a mark.
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*/
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/* In active mode, we need to accept a connection on the data socket
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* (in passive mode, we have already connected the data channel to
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* the FTP server).
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*/
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if (!FTPC_IS_PASSIVE(session))
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{
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ret = ftpc_sockaccept(&session->data);
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if (ret != OK)
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{
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nerr("ERROR: Data connection not accepted\n");
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return ERROR;
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}
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}
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/* Then perform the data transfer */
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if (xfrmode == FTPC_XFRMODE_ASCII)
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{
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ret = ftpc_sendtext(session, stream, session->data.outstream);
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}
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else
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{
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ret = ftpc_sendbinary(session, stream, session->data.outstream);
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}
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ftpc_sockflush(&session->data);
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ftpc_sockclose(&session->data);
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if (ret == 0)
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{
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fptc_getreply(session);
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}
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return OK;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ftpc_putfile
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*
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* Description:
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* Put a file on the remote host.
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*
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****************************************************************************/
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int ftp_putfile(SESSION handle, const char *lname, const char *rname,
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uint8_t how, uint8_t xfrmode)
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{
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FAR struct ftpc_session_s *session = (FAR struct ftpc_session_s *)handle;
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FAR char *abslpath;
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struct stat statbuf;
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FILE *finstream;
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int ret;
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/* Don't call this with a NULL local file name */
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DEBUGASSERT(lname);
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/* If the remote name is not specified, then it is assumed to the same as
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* the local file name.
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*/
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if (!rname)
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{
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rname = lname;
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}
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/* Get the full path to the local file */
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abslpath = ftpc_abslpath(session, lname);
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if (!abslpath)
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{
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nwarn("WARNING: ftpc_abslpath(%s) failed: %d\n", errno);
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goto errout;
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}
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/* Make sure that the local file exists */
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ret = stat(abslpath, &statbuf);
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if (ret != OK)
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{
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nwarn("WARNING: stat(%s) failed: %d\n", errno);
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goto errout_with_abspath;
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}
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/* Make sure that the local name does not refer to a directory */
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if (S_ISDIR(statbuf.st_mode))
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{
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nwarn("WARNING: %s is a directory\n", abslpath);
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goto errout_with_abspath;
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}
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/* Open the local file for reading */
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finstream = fopen(abslpath, "r");
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if (!finstream)
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{
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nwarn("WARNING: fopen() failed: %d\n", errno);
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goto errout_with_abspath;
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}
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/* Are we resuming a transfer? */
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session->offset = 0;
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if (how == FTPC_PUT_RESUME)
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{
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/* Yes... Get the size of the file. This will only work if the
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* server supports the SIZE command.
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*/
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session->offset = ftpc_filesize(session, rname);
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if (session->offset == (off_t)ERROR)
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{
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nwarn("WARNING: Failed to get size of remote file: %s\n", rname);
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goto errout_with_instream;
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}
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else
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{
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/* Seek to the offset in the file corresponding to the size
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* that we have already sent.
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*/
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ret = fseek(finstream, session->offset, SEEK_SET);
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if (ret != OK)
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{
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nerr("ERROR: fseek failed: %d\n", errno);
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goto errout_with_instream;
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}
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}
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}
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/* Send the file */
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ret = ftpc_sendfile(session, rname, finstream, how, xfrmode);
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if (ret == OK)
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{
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fclose(finstream);
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free(abslpath);
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return OK;
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}
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/* Various error exits */
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errout_with_instream:
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fclose(finstream);
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errout_with_abspath:
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free(abslpath);
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errout:
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return ERROR;
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}
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