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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  func-
       tion.

       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)