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Thanks Patrick! I tried your way, at least I get another error message now! "curl_easy_perform () failed: Upload failed (at start/before it took off)" So how to rewrite my URLs so cURL accepts them. I begin to a bit desperate now, are there no debug/error printf() possible? ( I use -Wall ...) Nils, wondering if the example worked to start with?? Den 2015-08-13 kl. 01:21, skrev Patrick
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pi@VallrunElmeter ~/Counter $ sudo ./ftpupload Local file size: 99 bytes. curl_easy_perform () failed: Upload failed (at start/before it took off) #define LOCAL_FILE "/home/pi/Counter/temp/ws_data.txt" #define UPLOAD_FILE_AS "ws_data2.txt" #define REMOTE_URL "ftp://192.168.0.151/backup/ftptest/"; UPLOAD_FILE_AS #define RENAME_FILE_TO "ws_data3.txt"
/*************************************************************************** * _ _ ____ _ * 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. * ***************************************************************************/ #include <stdio.h> #include <string.h> #include <curl/curl.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <errno.h> #ifdef WIN32 #include <io.h> #else #include <unistd.h> #endif /* <DESC> * Performs an FTP upload and renames the file just after a successful * transfer. * </DESC> */ #define LOCAL_FILE "/home/pi/Counter/temp/ws_data.txt" #define UPLOAD_FILE_AS "ws_data2.txt" #define REMOTE_URL "ftp://192.168.0.151/backup/ftptest/"; UPLOAD_FILE_AS #define RENAME_FILE_TO "ws_data3.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 = NULL; static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS; static const char buf_2 [] = "RNTO " RENAME_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" ); hd_src = fopen ( LOCAL_FILE, "r" ); 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 ) { /* build a list of commands to pass to libcurl */ headerlist = curl_slist_append ( headerlist, buf_1 ); headerlist = curl_slist_append ( headerlist, buf_2 ); /* 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 ); /* 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 ); /* 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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