1 /*****************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
13 #include <curl/curl.h>
14 #include <sys/types.h>
25 * This example shows an FTP upload, with a rename of the file just after
26 * a successful upload.
28 * Example based on source code provided by Erick Nuwendam. Thanks!
31 #define LOCAL_FILE "/tmp/uploadthis.txt"
32 #define UPLOAD_FILE_AS "while-uploading.txt"
33 #define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
34 #define RENAME_FILE_TO "renamed-and-fine.txt"
36 /* NOTE: if you want this example to work on Windows with libcurl as a
37 DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
38 Failing to do so will give you a crash since a DLL may not use the
39 variable's memory when passed in to it from an app like this. */
40 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
42 /* in real-world cases, this would probably get this data differently
43 as this fread() stuff is exactly what the library already would do
44 by default internally */
45 size_t retcode = fread(ptr, size, nmemb, stream);
47 fprintf(stderr, "*** We read %d bytes from file\n", retcode);
51 int main(int argc, char **argv)
56 struct stat file_info;
59 struct curl_slist *headerlist=NULL;
60 static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
61 static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
63 /* get the file size of the local file */
64 if(stat(LOCAL_FILE, &file_info)) {
65 printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
68 fsize = (curl_off_t)file_info.st_size;
70 printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
72 /* get a FILE * of the same file */
73 hd_src = fopen(LOCAL_FILE, "rb");
75 /* In windows, this will init the winsock stuff */
76 curl_global_init(CURL_GLOBAL_ALL);
78 /* get a curl handle */
79 curl = curl_easy_init();
81 /* build a list of commands to pass to libcurl */
82 headerlist = curl_slist_append(headerlist, buf_1);
83 headerlist = curl_slist_append(headerlist, buf_2);
85 /* we want to use our own read function */
86 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
88 /* enable uploading */
89 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
92 curl_easy_setopt(curl,CURLOPT_URL, REMOTE_URL);
94 /* pass in that last of FTP commands to run after the transfer */
95 curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
97 /* now specify which file to upload */
98 curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
100 /* Set the size of the file to upload (optional). If you give a *_LARGE
101 option you MUST make sure that the type of the passed-in argument is a
102 curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
103 make sure that to pass in a type 'long' argument. */
104 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
107 /* Now run off and do what you've been told! */
108 res = curl_easy_perform(curl);
110 /* clean up the FTP commands list */
111 curl_slist_free_all (headerlist);
114 curl_easy_cleanup(curl);
116 fclose(hd_src); /* close the local file */
118 curl_global_cleanup();