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.\" generated by cd2nroff 0.1 from curl_formfree.md
.TH curl_formfree 3 "2025-06-27" 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 PROTOCOLS
This functionality affects http only
.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 DEPRECATED
Deprecated in 7.56.0.
.SH AVAILABILITY
Added in curl 7.1
.SH RETURN VALUE
None
.SH SEE ALSO
.BR curl_formadd (3),
.BR curl_mime_free (3),
.BR curl_mime_init (3)