nuttx-apps/netutils/ftpc/ftpc_rpwd.c
Alin Jerpelea 0a6b1f55ab netutils: update licenses to Apache
Gregory Nutt is has submitted the SGA

Sebastien Lorquet has submitted the ICLA

as a result we can migrate the licenses to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 05:05:27 -05:00

118 lines
3.0 KiB
C

/****************************************************************************
* apps/netutils/ftpc/ftpc_rpwd.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include "ftpc_config.h"
#include <stdlib.h>
#include <string.h>
#include <debug.h>
#include "netutils/ftpc.h"
#include "ftpc_internal.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: ftpc_rpwd
*
* Description:
* Returns the current working directory on the remote server.
*
****************************************************************************/
FAR char *ftpc_rpwd(SESSION handle)
{
FAR struct ftpc_session_s *session = (FAR struct ftpc_session_s *)handle;
FAR char *start;
FAR char *end;
FAR char *pwd;
FAR char *ptr;
int len;
/* Send the PWD command */
ftpc_cmd(session, "PWD");
/* Response is like: 257 "/home/gnutt" (from vsftpd).
*
* Extract the quoted path name into allocated memory.
*/
start = strchr(session->reply, '\"');
if (!start)
{
nwarn("WARNING: Opening quote not found\n");
return NULL;
}
start++;
end = strchr(start, '\"');
if (!end)
{
nwarn("WARNING: Closing quote not found\n");
return NULL;
}
/* Allocate memory for the path name:
*
* Reply: 257 "/home/gnutt"
* ^start ^end
*
* len = end - start + 1 = 11 (+ NUL terminator)
*/
len = end - start + 1;
pwd = (char *)malloc(len + 1);
if (!pwd)
{
nerr("ERROR: Failed to allocate string\n");
return NULL;
}
/* Copy the string into the allocated memory */
memcpy(pwd, start, len);
pwd[len] = '\0';
/* Remove any trailing slash that the server may have added */
ftpc_stripslash(pwd);
/* Change DOS style directory separator ('\') to UNIX style ('/') */
for (ptr = pwd; *ptr; ptr++)
{
if (*ptr == '\\')
{
*ptr = '/';
}
}
return pwd;
}