1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 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 https://curl.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 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24 /* <DESC>
25 * HTTP Multipart formpost with file upload and two additional parts.
26 * </DESC>
27 */
28
29 /*
30 * Example code that uploads a filename 'foo' to a remote script that accepts
31 * "HTML form based" (as described in RFC 1738) uploads using HTTP POST.
32 *
33 * Warning: this example uses the deprecated form api. See "postit2.c"
34 * for a similar example using the mime api.
35 *
36 * The imaginary form we fill in looks like:
37 *
38 * <form method="post" enctype="multipart/form-data" action="examplepost.cgi">
39 * Enter file: <input type="file" name="sendfile" size="40">
40 * Enter filename: <input type="text" name="filename" size="30">
41 * <input type="submit" value="send" name="submit">
42 * </form>
43 */
44
45 #include <stdio.h>
46 #include <string.h>
47
48 #include <curl/curl.h>
49
main(int argc,char * argv[])50 int main(int argc, char *argv[])
51 {
52 CURL *curl;
53 CURLcode res;
54
55 struct curl_httppost *formpost = NULL;
56 struct curl_httppost *lastptr = NULL;
57 struct curl_slist *headerlist = NULL;
58 static const char buf[] = "Expect:";
59
60 curl_global_init(CURL_GLOBAL_ALL);
61
62 CURL_IGNORE_DEPRECATION(
63 /* Fill in the file upload field */
64 curl_formadd(&formpost,
65 &lastptr,
66 CURLFORM_COPYNAME, "sendfile",
67 CURLFORM_FILE, "postit2-formadd.c",
68 CURLFORM_END);
69
70 /* Fill in the filename field */
71 curl_formadd(&formpost,
72 &lastptr,
73 CURLFORM_COPYNAME, "filename",
74 CURLFORM_COPYCONTENTS, "postit2-formadd.c",
75 CURLFORM_END);
76
77
78 /* Fill in the submit field too, even if this is rarely needed */
79 curl_formadd(&formpost,
80 &lastptr,
81 CURLFORM_COPYNAME, "submit",
82 CURLFORM_COPYCONTENTS, "send",
83 CURLFORM_END);
84 )
85
86 curl = curl_easy_init();
87 /* initialize custom header list (stating that Expect: 100-continue is not
88 wanted */
89 headerlist = curl_slist_append(headerlist, buf);
90 if(curl) {
91 /* what URL that receives this POST */
92 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/examplepost.cgi");
93 if((argc == 2) && (!strcmp(argv[1], "noexpectheader")))
94 /* only disable 100-continue header if explicitly requested */
95 curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
96 CURL_IGNORE_DEPRECATION(
97 curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
98 )
99
100 /* Perform the request, res gets the return code */
101 res = curl_easy_perform(curl);
102 /* Check for errors */
103 if(res != CURLE_OK)
104 fprintf(stderr, "curl_easy_perform() failed: %s\n",
105 curl_easy_strerror(res));
106
107 /* always cleanup */
108 curl_easy_cleanup(curl);
109
110 CURL_IGNORE_DEPRECATION(
111 /* then cleanup the formpost chain */
112 curl_formfree(formpost);
113 )
114
115 /* free slist */
116 curl_slist_free_all(headerlist);
117 }
118 return 0;
119 }
120
