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curl_formget(3)                                libcurl Manual                                curl_formget(3)



NAME
       curl_formget - serialize a previously built multipart/formdata HTTP POST chain

SYNOPSIS
       #include <curl/curl.h>

       void curl_formget(struct curl_httppost * form, void *userp,
                         curl_formget_callback append );

DESCRIPTION
       curl_formget()  is  used  to serialize data previously built/appended with curl_formadd(3). Accepts a
       void pointer as second argument named userp which will  be  passed  as  the  first  argument  to  the
       curl_formget_callback function.

       typedef size_t (*curl_formget_callback)(void *userp, const char *buf,  size_t len);

       The curl_formget_callback will be executed for each part of the HTTP POST chain. The character buffer
       passed to the callback must not be freed. The callback should return the buffer length passed  to  it
       on success.

       If  the  CURLFORM_STREAM option is used in the formpost, it will prevent curl_formget(3) from working
       until you've performed the actual HTTP request as only then will libcurl get the actual read callback
       to use!

RETURN VALUE
       0 means everything was ok, non-zero means an error occurred

EXAMPLE
        size_t print_httppost_callback(void *arg, const char *buf, size_t len)
        {
          fwrite(buf, len, 1, stdout);
          (*(size_t *) arg) += len;
          return len;
        }

        size_t print_httppost(struct curl_httppost *post)
        {
          size_t total_size = 0;
          if(curl_formget(post, &total_size, print_httppost_callback)) {
            return (size_t) -1;
          }
          return total_size;
        }

AVAILABILITY
       This function was added in libcurl 7.15.5

SEE ALSO
       curl_formadd(3)



libcurl 7.15.5                                  20 June 2006                                 curl_formget(3)