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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" * SPDX-License-Identifier: curl
.\" *
.\" **************************************************************************
.TH CURLSHOPT_USERDATA 3 "8 Aug 2003" libcurl libcurl
.SH NAME
CURLSHOPT_USERDATA - pointer passed to the lock and unlock mutex callbacks
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_USERDATA, void *clientp);
.fi
.SH DESCRIPTION
The \fIclientp\fP parameter is held verbatim by libcurl and is passed on as
the \fIclientp\fP argument to the callbacks set with
\fICURLSHOPT_LOCKFUNC(3)\fP and \fICURLSHOPT_UNLOCKFUNC(3)\fP.
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
CURLSHcode sh;
struct secrets private_stuff;
share = curl_share_init();
sh = curl_share_setopt(share, CURLSHOPT_USERDATA, &private_stuff);
if(sh)
printf("Error: %s\\n", curl_share_strerror(sh));
.fi
.SH AVAILABILITY
Added in 7.10
.SH RETURN VALUE
CURLSHE_OK (zero) means that the option was set properly, non-zero means an
error occurred. See \fIlibcurl-errors(3)\fP for the full list with
descriptions.
.SH "SEE ALSO"
.BR curl_share_cleanup (3),
.BR curl_share_init (3),
.BR curl_share_setopt (3),
.BR CURLSHOPT_LOCKFUNC (3)
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