How can I close this issue? I can, thanks to Patrick and Daniel,
successfully append a file to another! If anyone else is interested I
attach the functioning file and the verbose printout.
pi@VallrunElmeter ~/Counter $ sudo ./ftpappend
Local file size: 99 bytes.
* About to connect() to 192.168.0.151 port 21 (#0)
* Trying 192.168.0.151...
* connected
* Connected to 192.168.0.151 (192.168.0.151) port 21 (#0)
* FTP 0x2d3408 state change from STOP to WAIT220
< 220 ProFTPD 1.3.3g Server (NETGEAR ReadyNAS) [192.168.0.151]
> USER anonymous
* FTP 0x2d3408 state change from WAIT220 to USER
< 331 Anonymous login ok, send your complete email address as your password
> PASS WS_DATA1
* FTP 0x2d3408 state change from USER to PASS
< 230 Anonymous access granted, restrictions apply
> PWD
* FTP 0x2d3408 state change from PASS to PWD
< 257 "/" is the current directory
* Entry path is '/'
* FTP 0x2d3408 state change from PWD to STOP
* protocol connect phase DONE
* DO phase starts
> CWD WS_DATA
* FTP 0x2d3408 state change from STOP to CWD
< 250 CWD command successful
> EPSV
* FTP 0x2d3408 state change from CWD to PASV
* Connect data stream passively
< 229 Entering Extended Passive Mode (|||62852|)
* Trying 192.168.0.151...
* connected
* Connecting to 192.168.0.151 (192.168.0.151) port 62852
* FTP 0x2d3408 state change from PASV to STOP
* DO phase is complete
> TYPE I
* FTP 0x2d3408 state change from STOP to STOR_TYPE
< 200 Type set to I
> APPE ws_data2.txt
* FTP 0x2d3408 state change from STOR_TYPE to STOR
< 150 Opening BINARY mode data connection for ws_data2.txt
* FTP 0x2d3408 state change from STOR to STOP
* DO-MORE phase ends with 0
*** We read 99 bytes from file
* We are completely uploaded and fine
* Remembering we are in dir "WS_DATA/"
< 226 Transfer complete
> RNFR ws_data2.txt
< 350 File or directory exists, ready for destination name
* Connection #0 to host 192.168.0.151 left intact
> QUIT
* FTP 0x2d3408 state change from STOP to QUIT
< 221 Goodbye.
* FTP 0x2d3408 state change from QUIT to STOP
* Closing connection #0
pi@VallrunElmeter ~/Counter $
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
* Heavily edited by Nils Söderman 2015
*
***************************************************************************/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
/* <DESC>
* Performs an FTP upload and renames the file just after a successful
* transfer.
* </DESC>
*/
#define LOCAL_FILE "ws_data.txt"
#define UPLOAD_FILE_AS "ws_data2.txt"
#define REMOTE_URL "ftp://192.168.0.151/WS_DATA/"; UPLOAD_FILE_AS
//#define RENAME_FILE_TO "ws_data3.txt"
#define APPEND_FILE_TO "ws_data.txt"
/* NOTE: if you want this example to work on Windows with libcurl as a
DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
Failing to do so will give you a crash since a DLL may not use the
variable's memory when passed in to it from an app like this. */
static size_t read_callback ( void *ptr, size_t size, size_t nmemb, void
*stream )
{
curl_off_t nread;
/* in real-world cases, this would probably get this data differently
as this fread () stuff is exactly what the library already would do
by default internally */
size_t retcode = fread ( ptr, size, nmemb, stream );
nread = ( curl_off_t ) retcode;
fprintf ( stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread );
return retcode;
}
int main ( void )
{
CURL *curl;
CURLcode res;
FILE *hd_src;
struct stat file_info;
curl_off_t fsize;
struct curl_slist *headerlist_begin = NULL;
struct curl_slist *headerlist = NULL;
static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
// static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
static const char buf_3 [] = "APPE " APPEND_FILE_TO;
/* get the file size of the local file */
if ( stat ( LOCAL_FILE, &file_info ) )
{
printf ( "Couldnt open '%s': %s\n", LOCAL_FILE, strerror ( errno ) );
return 1;
};
fsize = ( curl_off_t ) file_info.st_size;
printf ( "Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize );
/* get a FILE * of the same file */
hd_src = fopen ( LOCAL_FILE, "rb" );
if ( hd_src < 0 )
{
printf ( "Couldnt open '%s': %s\n", LOCAL_FILE, strerror ( errno ) );
return 1;
};
/* In windows, this will init the winsock stuff */
curl_global_init ( CURL_GLOBAL_ALL );
/* get a curl handle */
curl = curl_easy_init ();
if ( curl )
{
curl_easy_setopt ( curl, CURLOPT_VERBOSE, 1L );
curl_easy_setopt( curl, CURLOPT_USERPWD, "anonymous:WS_DATA1" );
/* build a list of commands to pass to libcurl */
headerlist = curl_slist_append ( headerlist, buf_1 );
// headerlist = curl_slist_append ( headerlist, buf_2 );
headerlist_begin = curl_slist_append ( headerlist_begin, buf_3 );
/* we want to use our own read function */
curl_easy_setopt ( curl, CURLOPT_READFUNCTION, read_callback );
/* enable uploading */
curl_easy_setopt ( curl, CURLOPT_UPLOAD, 1L );
curl_easy_setopt ( curl, CURLOPT_APPEND, 1L );
/* specify target */
curl_easy_setopt( curl, CURLOPT_URL, REMOTE_URL );
/* pass in that last of FTP commands to run after the transfer */
curl_easy_setopt ( curl, CURLOPT_POSTQUOTE, headerlist );
// curl_easy_setopt ( curl, CURLOPT_QUOTE, headerlist_begin );
/* now specify which file to upload */
curl_easy_setopt ( curl, CURLOPT_READDATA, hd_src );
/* Set the size of the file to upload ( optional ) . If you give a *_LARGE
option you MUST make sure that the type of the passed-in argument is a
curl_off_t. If you use CURLOPT_INFILESIZE ( without _LARGE ) you must
make sure that to pass in a type 'long' argument. */
curl_easy_setopt ( curl, CURLOPT_INFILESIZE_LARGE,
( curl_off_t ) fsize );
/* Now run off and do what you've been told! */
res = curl_easy_perform ( curl );
/* Check for errors */
if ( res != CURLE_OK )
fprintf ( stderr, "curl_easy_perform () failed: %s\n",
curl_easy_strerror ( res ) );
/* clean up the FTP commands list */
curl_slist_free_all ( headerlist );
/* always cleanup */
curl_easy_cleanup ( curl );
};
fclose ( hd_src ); /* close the local file */
curl_global_cleanup ();
return 0;
};
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