Wallner's update

.B #include <curl/curl.h>

.sp

.BI "void curl_formget(struct curl_httppost *" form, " void *" arg,

.BI " curl_formget_callback " append);

.BI " curl_formget_callback " append ");"

.ad

.SH DESCRIPTION

curl_formget() is used to serialize data previously built/appended with

\fIcurl_formadd(3)\fP. Accepts a void pointer as second argument which will be

passed to the curl_formget_callback function.

.B "typedef size_t (*curl_formget_callback)(void *" arg, " const char *" buf,

.B " size_t " len);

.BI "typedef size_t (*curl_formget_callback)(void *" arg, " const char *" buf,

.BI " size_t " len ");"

.nf

The curl_formget_callback will be executed for each part of the httppost

struct. The void *arg pointer will be the one passed as second argument to

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.

.SH RETURN VALUE

 size_t print_httppost(struct curl_httppost *post)

 {

   size_t total_size = 0;

   if(curl_formget(post, &total_size, out)) {

   if(curl_formget(post, &total_size, print_httppost_callback)) {

     return (size_t) -1;

   }

   return total_size;