curl/docs/libcurl/opts/CURLOPT_TRAILERDATA.md
Daniel Stenberg e3fe020089
docs/libcurl: generate PROTOCOLS from meta-data
Remove the PROTOCOLS section from the source files completely and
instead generate them based on the header data in the curldown files.

It also generates TLS backend information for options marked for TLS as
protocol.

Closes #13175
2024-03-23 18:13:03 +01:00

58 lines
871 B
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_TRAILERDATA
Section: 3
Source: libcurl
See-also:
- CURLOPT_TRAILERFUNCTION (3)
- CURLOPT_WRITEFUNCTION (3)
Protocol:
- HTTP
---
# NAME
CURLOPT_TRAILERDATA - pointer passed to trailing headers callback
# SYNOPSIS
~~~c
#include <curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TRAILERDATA, void *userdata);
~~~
# DESCRIPTION
Data pointer to be passed to the HTTP trailer callback function.
# DEFAULT
NULL
# EXAMPLE
~~~c
struct MyData {
void *custom;
};
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
struct MyData data;
curl_easy_setopt(curl, CURLOPT_TRAILERDATA, &data);
}
}
~~~
# AVAILABILITY
This option was added in curl 7.64.0 and is present if HTTP support is enabled
# RETURN VALUE
Returns CURLE_OK.