curl/docs/libcurl/curl_formfree.3

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.TH curl_formfree 3 "6 April 2001" "libcurl" "libcurl"
.SH NAME
curl_formfree - free a previously build multipart form post chain
.SH SYNOPSIS
.nf
#include <curl/curl.h>

void curl_formfree(struct curl_httppost *form);
.fi
.SH DESCRIPTION
This function is deprecated. Do not use. See \fIcurl_mime_init(3)\fP instead!

curl_formfree() is used to clean up data previously built/appended with
\fIcurl_formadd(3)\fP. This must be called when the data has been used, which
typically means after \fIcurl_easy_perform(3)\fP has been called.

The pointer to free is the same pointer you passed to the
\fICURLOPT_HTTPPOST(3)\fP option, which is the \fIfirstitem\fP pointer from
the \fIcurl_formadd(3)\fP invoke(s).

\fBform\fP is the pointer as returned from a previous call to
\fIcurl_formadd(3)\fP and may be NULL.

Passing in a NULL pointer in \fIform\fP makes this function return immediately
with no action.
.SH EXAMPLE
.nf
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);
  }
}
.fi
.SH AVAILABILITY
Deprecated in 7.56.0.
.SH RETURN VALUE
None
.SH "SEE ALSO"
.BR curl_formadd (3),
.BR curl_mime_init (3),
.BR curl_mime_free (3)