curl_formfree(3) Introduction to Library Functions curl_formfree(3)
NAME
curl_formfree - free a previously build multipart form post chain
SYNOPSIS
#include <curl/curl.h>
void curl_formfree(struct curl_httppost *form);
DESCRIPTION
This function is deprecated. Do not use. See
curl_mime_init(3) instead.
curl_formfree() is used to clean up data previously built/appended
with
curl_formadd(3). This must be called when the data has been
used, which typically means after
curl_easy_perform(3) has been
called.
The pointer to free is the same pointer you passed to the
CURLOPT_HTTPPOST(3) option, which is the
firstitem pointer from the
curl_formadd(3) invoke(s).
form is the pointer as returned from a previous call to
curl_formadd(3) and may be NULL.
Passing in a NULL pointer in
form makes this function return
immediately with no action.
PROTOCOLS
This functionality affects http only
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
struct curl_httppost *formpost;
struct curl_httppost *lastptr;
/* Fill in a file upload field */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "file",
CURLFORM_FILE, "nice-image.jpg",
CURLFORM_END);
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
curl_easy_perform(curl);
/* then cleanup the formpost chain */
curl_formfree(formpost);
}
}
DEPRECATED
Deprecated in 7.56.0.
AVAILABILITY
Added in curl 7.1
RETURN VALUE
None
SEE ALSO
curl_formadd(3),
curl_mime_free(3),
curl_mime_init(3)libcurl 2025-02-25 curl_formfree(3)