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curl_formget.3 -- man page

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)

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