px4-firmware/apps/netutils/ftpc/ftpc_filetime.c

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/****************************************************************************
* apps/netutils/ftpc/ftpc_filetime.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 "ftpc_config.h"
#include <string.h>
#include <time.h>
#include <apps/ftpc.h>
#include "ftpc_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: ftpc_filetime
*
* Descripton:
* Return the timestamp on the remote file. Returned time is UTC
* (Universal Coordinated Time).
*
****************************************************************************/
time_t ftpc_filetime(SESSION handle, FAR const char *filename)
{
FAR struct ftpc_session_s *session = (FAR struct ftpc_session_s *)handle;
struct tm timestamp;
int ret;
/* Make sure that the server is still connected */
if (!ftpc_connected(session))
{
return ERROR;
}
/* Does the server support the MDTM command? */
if (!FTPC_HAS_MDTM(session))
{
return ERROR;
}
/* Get the file time in UTC */
memset(&timestamp, 0, sizeof(timestamp));
ret = ftpc_cmd(session, "MDTM %s", filename);
if (ret != OK)
{
return ERROR;
}
/* Check for "202 Command not implemented, superfluous at this site" */
if (session->code == 202)
{
FTPC_CLR_MDTM(session);
return ERROR;
}
/* Check for "213 File status" */
if (session->code != 213)
{
return ERROR;
}
/* Time is Universal Coordinated Time */
sscanf(session->reply, "%*s %04d%02d%02d%02d%02d%02d",
&timestamp.tm_year, &timestamp.tm_mon, &timestamp.tm_mday,
&timestamp.tm_hour, &timestamp.tm_min, &timestamp.tm_sec);
timestamp.tm_year -= 1900;
timestamp.tm_mon--;
return mktime(&timestamp);
}