1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2016, 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 struct curl_httppost *formpost=NULL; 51 struct curl_httppost *lastptr=NULL; 52 struct curl_slist *headerlist=NULL; 53 static const char buf[] = "Expect:"; 54 55 curl_global_init(CURL_GLOBAL_ALL); 56 57 /* Fill in the file upload field */ 58 curl_formadd(&formpost, 59 &lastptr, 60 CURLFORM_COPYNAME, "sendfile", 61 CURLFORM_FILE, "postit2.c", 62 CURLFORM_END); 63 64 /* Fill in the filename field */ 65 curl_formadd(&formpost, 66 &lastptr, 67 CURLFORM_COPYNAME, "filename", 68 CURLFORM_COPYCONTENTS, "postit2.c", 69 CURLFORM_END); 70 71 72 /* Fill in the submit field too, even if this is rarely needed */ 73 curl_formadd(&formpost, 74 &lastptr, 75 CURLFORM_COPYNAME, "submit", 76 CURLFORM_COPYCONTENTS, "send", 77 CURLFORM_END); 78 79 curl = curl_easy_init(); 80 /* initialize custom header list (stating that Expect: 100-continue is not 81 wanted */ 82 headerlist = curl_slist_append(headerlist, buf); 83 if(curl) { 84 /* what URL that receives this POST */ 85 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/examplepost.cgi"); 86 if((argc == 2) && (!strcmp(argv[1], "noexpectheader"))) 87 /* only disable 100-continue header if explicitly requested */ 88 curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist); 89 curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); 90 91 /* Perform the request, res will get the return code */ 92 res = curl_easy_perform(curl); 93 /* Check for errors */ 94 if(res != CURLE_OK) 95 fprintf(stderr, "curl_easy_perform() failed: %s\n", 96 curl_easy_strerror(res)); 97 98 /* always cleanup */ 99 curl_easy_cleanup(curl); 100 101 /* then cleanup the formpost chain */ 102 curl_formfree(formpost); 103 /* free slist */ 104 curl_slist_free_all (headerlist); 105 } 106 return 0; 107 } 108
