1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
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.
13 *
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.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22 #include <stdio.h>
23 #include <string.h>
24
25 #include <curl/curl.h>
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <fcntl.h>
29 #include <errno.h>
30 #ifdef WIN32
31 #include <io.h>
32 #else
33 #include <unistd.h>
34 #endif
35
36 /*
37 * This example shows an FTP upload, with a rename of the file just after
38 * a successful upload.
39 *
40 * Example based on source code provided by Erick Nuwendam. Thanks!
41 */
42
43 #define LOCAL_FILE "/tmp/uploadthis.txt"
44 #define UPLOAD_FILE_AS "while-uploading.txt"
45 #define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
46 #define RENAME_FILE_TO "renamed-and-fine.txt"
47
48 /* NOTE: if you want this example to work on Windows with libcurl as a
49 DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
50 Failing to do so will give you a crash since a DLL may not use the
51 variable's memory when passed in to it from an app like this. */
read_callback(void * ptr,size_t size,size_t nmemb,void * stream)52 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
53 {
54 curl_off_t nread;
55 /* in real-world cases, this would probably get this data differently
56 as this fread() stuff is exactly what the library already would do
57 by default internally */
58 size_t retcode = fread(ptr, size, nmemb, stream);
59
60 nread = (curl_off_t)retcode;
61
62 fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
63 " bytes from file\n", nread);
64 return retcode;
65 }
66
main(void)67 int main(void)
68 {
69 CURL *curl;
70 CURLcode res;
71 FILE *hd_src;
72 struct stat file_info;
73 curl_off_t fsize;
74
75 struct curl_slist *headerlist=NULL;
76 static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
77 static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
78
79 /* get the file size of the local file */
80 if(stat(LOCAL_FILE, &file_info)) {
81 printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
82 return 1;
83 }
84 fsize = (curl_off_t)file_info.st_size;
85
86 printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
87
88 /* get a FILE * of the same file */
89 hd_src = fopen(LOCAL_FILE, "rb");
90
91 /* In windows, this will init the winsock stuff */
92 curl_global_init(CURL_GLOBAL_ALL);
93
94 /* get a curl handle */
95 curl = curl_easy_init();
96 if(curl) {
97 /* build a list of commands to pass to libcurl */
98 headerlist = curl_slist_append(headerlist, buf_1);
99 headerlist = curl_slist_append(headerlist, buf_2);
100
101 /* we want to use our own read function */
102 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
103
104 /* enable uploading */
105 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
106
107 /* specify target */
108 curl_easy_setopt(curl,CURLOPT_URL, REMOTE_URL);
109
110 /* pass in that last of FTP commands to run after the transfer */
111 curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
112
113 /* now specify which file to upload */
114 curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
115
116 /* Set the size of the file to upload (optional). If you give a *_LARGE
117 option you MUST make sure that the type of the passed-in argument is a
118 curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
119 make sure that to pass in a type 'long' argument. */
120 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
121 (curl_off_t)fsize);
122
123 /* Now run off and do what you've been told! */
124 res = curl_easy_perform(curl);
125 /* Check for errors */
126 if(res != CURLE_OK)
127 fprintf(stderr, "curl_easy_perform() failed: %s\n",
128 curl_easy_strerror(res));
129
130 /* clean up the FTP commands list */
131 curl_slist_free_all (headerlist);
132
133 /* always cleanup */
134 curl_easy_cleanup(curl);
135 }
136 fclose(hd_src); /* close the local file */
137
138 curl_global_cleanup();
139 return 0;
140 }
141