Sening a file from memory (rather than disk) over HTTP using libcurl

Posted by cinek1lol on Stack Overflow See other posts from Stack Overflow or by cinek1lol
Published on 2010-03-27T13:07:33Z Indexed on 2010/03/27 13:33 UTC
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Hi!

I would like to send pictures via a program written in C + +. - OK

WinExec("C:\\curl\\curl.exe -H Expect: -F \"fileupload=@C:\\curl\\ok.jpg\" -F \"xml=yes\" -# \"http://www.imageshack.us/index.php\" -o data.txt -A \"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1\" -e \"http://www.imageshack.us\"", NULL); 

It works, but I would like to send the pictures from pre-loaded carrier to a variable char (you know what I mean? First off, I load the pictures into a variable and then send the variable), cause now I have to specify the path of the picture on a disk.

I wanted to write this program in c++ by using the curl library, not through exe. extension. I have also found such a program (which has been modified by me a bit)

 #include <stdio.h>
    #include <string.h>
    #include <iostream>
    #include <curl/curl.h>
    #include <curl/types.h>
    #include <curl/easy.h>
int main(int argc, char *argv[])
{
 CURL *curl;
 CURLcode res;

 struct curl_httppost *formpost=NULL;
 struct curl_httppost *lastptr=NULL;
 struct curl_slist *headerlist=NULL;
 static const char buf[] = "Expect:";

 curl_global_init(CURL_GLOBAL_ALL);

 /* Fill in the file upload field */
 curl_formadd(&formpost,
              &lastptr,
              CURLFORM_COPYNAME, "send",
              CURLFORM_FILE, "nowy.jpg",
              CURLFORM_END);

 curl_formadd(&formpost,
              &lastptr,
              CURLFORM_COPYNAME, "nowy.jpg",
              CURLFORM_COPYCONTENTS, "nowy.jpg",
              CURLFORM_END);


 curl_formadd(&formpost,
              &lastptr,
              CURLFORM_COPYNAME, "submit",
              CURLFORM_COPYCONTENTS, "send",
              CURLFORM_END);

 curl = curl_easy_init();
 headerlist = curl_slist_append(headerlist, buf);
 if(curl) {
   curl_easy_setopt(curl, CURLOPT_URL, "http://www.imageshack.us/index.php");
   if ( (argc == 2) && (!strcmp(argv[1], "xml=yes")) )
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
   curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
   res = curl_easy_perform(curl);

   curl_easy_cleanup(curl);

   curl_formfree(formpost);
   curl_slist_free_all (headerlist);
 }
 system("pause");
 return 0;
} 

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