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curl/docs/libcurl/opts/CURLOPT_TRAILERDATA.3

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+.\" **************************************************************************
+.\" *                                  _   _ ____  _
+.\" *  Project                     ___| | | |  _ \| |
+.\" *                             / __| | | | |_) | |
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+.\" *                             \___|\___/|_| \_\_____|
+.\" *
+.\" * Copyright (C) 1998 - 2019, Daniel Stenberg, <[email protected]>, et al.
+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
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+.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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+.\" **************************************************************************
+.\"
+.TH CURLOPT_TRAILERDATA 3 "November 04, 2020" "libcurl 7.75.0" "curl_easy_setopt options"
+
+.SH NAME
+CURLOPT_TRAILERDATA \- Custom pointer passed to the trailing headers callback
+.SH SYNOPSIS
+#include <curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TRAILERDATA, void *userdata);
+.SH DESCRIPTION:
+Data pointer to be passed to the HTTP trailer callback function.
+.SH DEFAULT
+NULL
+.SH PROTOCOLS
+HTTP
+.SH EXAMPLE
+.nf
+/* Assuming we have a CURL handle in the hndl variable. */
+
+struct MyData data;
+
+curl_easy_setopt(hndl, CURLOPT_TRAILERDATA, &data);
+.fi
+
+A more complete example can be found in examples/http_trailers.html
+.SH AVAILABILITY
+This option was added in curl 7.64.0 and is present if HTTP support is enabled
+.SH "SEE ALSO"
+.BR CURLOPT_TRAILERFUNCTION "(3), "