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 *arg, 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 which will be passed to the curl_formget_callback function.

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

The curl_formget_callback will be executed for each part of the HTTP POST
chain. The void *arg pointer will be the one passed as second argument to
curl_formget(). The character buffer passed to it must not be freed. The 
callback should return the buffer length passed to it on success.

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)