1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel (at) 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.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 /* <DESC> 23 * HTTP Multipart formpost with file upload and two additional parts. 24 * </DESC> 25 */ 26 /* Example code that uploads a file name 'foo' to a remote script that accepts 27 * "HTML form based" (as described in RFC1738) uploads using HTTP POST. 28 * 29 * The imaginary form we'll fill in looks like: 30 * 31 * <form method="post" enctype="multipart/form-data" action="examplepost.cgi"> 32 * Enter file: <input type="file" name="sendfile" size="40"> 33 * Enter file name: <input type="text" name="filename" size="30"> 34 * <input type="submit" value="send" name="submit"> 35 * </form> 36 * 37 * This exact source code has not been verified to work. 38 */ 39 40 #include <stdio.h> 41 #include <string.h> 42 43 #include <curl/curl.h> 44 45 int main(int argc, char *argv[]) 46 { 47 CURL *curl; 48 CURLcode res; 49 50 curl_mime *form = NULL; 51 curl_mimepart *field = NULL; 52 struct curl_slist *headerlist = NULL; 53 static const char buf[] = "Expect:"; 54 55 curl_global_init(CURL_GLOBAL_ALL); 56 57 curl = curl_easy_init(); 58 if(curl) { 59 /* Create the form */ 60 form = curl_mime_init(curl); 61 62 /* Fill in the file upload field */ 63 field = curl_mime_addpart(form); 64 curl_mime_name(field, "sendfile"); 65 curl_mime_filedata(field, "postit2.c"); 66 67 /* Fill in the filename field */ 68 field = curl_mime_addpart(form); 69 curl_mime_name(field, "filename"); 70 curl_mime_data(field, "postit2.c", CURL_ZERO_TERMINATED); 71 72 /* Fill in the submit field too, even if this is rarely needed */ 73 field = curl_mime_addpart(form); 74 curl_mime_name(field, "submit"); 75 curl_mime_data(field, "send", CURL_ZERO_TERMINATED); 76 77 /* initialize custom header list (stating that Expect: 100-continue is not 78 wanted */ 79 headerlist = curl_slist_append(headerlist, buf); 80 /* what URL that receives this POST */ 81 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/examplepost.cgi"); 82 if((argc == 2) && (!strcmp(argv[1], "noexpectheader"))) 83 /* only disable 100-continue header if explicitly requested */ 84 curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist); 85 curl_easy_setopt(curl, CURLOPT_MIMEPOST, form); 86 87 /* Perform the request, res will get the return code */ 88 res = curl_easy_perform(curl); 89 /* Check for errors */ 90 if(res != CURLE_OK) 91 fprintf(stderr, "curl_easy_perform() failed: %s\n", 92 curl_easy_strerror(res)); 93 94 /* always cleanup */ 95 curl_easy_cleanup(curl); 96 97 /* then cleanup the form */ 98 curl_mime_free(form); 99 /* free slist */ 100 curl_slist_free_all(headerlist); 101 } 102 return 0; 103 } 104
