1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
21 ***************************************************************************/
25 #include <curl/curl.h>
26 #include <sys/types.h>
37 * Performs an FTP upload and renames the file just after a successful
42 #define LOCAL_FILE "/tmp/uploadthis.txt"
43 #define UPLOAD_FILE_AS "while-uploading.txt"
44 #define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
45 #define RENAME_FILE_TO "renamed-and-fine.txt"
47 /* NOTE: if you want this example to work on Windows with libcurl as a
48 DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
49 Failing to do so will give you a crash since a DLL may not use the
50 variable's memory when passed in to it from an app like this. */
51 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
54 /* in real-world cases, this would probably get this data differently
55 as this fread() stuff is exactly what the library already would do
56 by default internally */
57 size_t retcode = fread(ptr, size, nmemb, stream);
59 nread = (curl_off_t)retcode;
61 fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
62 " bytes from file\n", nread);
71 struct stat file_info;
74 struct curl_slist *headerlist=NULL;
75 static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
76 static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
78 /* get the file size of the local file */
79 if(stat(LOCAL_FILE, &file_info)) {
80 printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
83 fsize = (curl_off_t)file_info.st_size;
85 printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
87 /* get a FILE * of the same file */
88 hd_src = fopen(LOCAL_FILE, "rb");
90 /* In windows, this will init the winsock stuff */
91 curl_global_init(CURL_GLOBAL_ALL);
93 /* get a curl handle */
94 curl = curl_easy_init();
96 /* build a list of commands to pass to libcurl */
97 headerlist = curl_slist_append(headerlist, buf_1);
98 headerlist = curl_slist_append(headerlist, buf_2);
100 /* we want to use our own read function */
101 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
103 /* enable uploading */
104 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
107 curl_easy_setopt(curl,CURLOPT_URL, REMOTE_URL);
109 /* pass in that last of FTP commands to run after the transfer */
110 curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
112 /* now specify which file to upload */
113 curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
115 /* Set the size of the file to upload (optional). If you give a *_LARGE
116 option you MUST make sure that the type of the passed-in argument is a
117 curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
118 make sure that to pass in a type 'long' argument. */
119 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
122 /* Now run off and do what you've been told! */
123 res = curl_easy_perform(curl);
124 /* Check for errors */
126 fprintf(stderr, "curl_easy_perform() failed: %s\n",
127 curl_easy_strerror(res));
129 /* clean up the FTP commands list */
130 curl_slist_free_all (headerlist);
133 curl_easy_cleanup(curl);
135 fclose(hd_src); /* close the local file */
137 curl_global_cleanup();