84 lines
2.9 KiB
Groff
84 lines
2.9 KiB
Groff
|
.\" **************************************************************************
|
||
|
|
.\" * _ _ ____ _
|
||
|
|
.\" * 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 CURLOPT_HSTS 3 "5 Feb 2019" libcurl libcurl
|
||
|
|
.SH NAME
|
||
|
|
CURLOPT_HSTS \- HSTS cache file name
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.nf
|
||
|
|
#include <curl/curl.h>
|
||
|
|
|
||
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HSTS, char *filename);
|
||
|
|
.fi
|
||
|
|
.SH DESCRIPTION
|
||
|
|
Make the \fIfilename\fP point to a file name to load an existing HSTS cache
|
||
|
|
from, and to store the cache in when the easy handle is closed. Setting a file
|
||
|
|
name with this option also enables HSTS for this handle (the equivalent of
|
||
|
|
setting \fICURLHSTS_ENABLE\fP with \fICURLOPT_HSTS_CTRL(3)\fP).
|
||
|
|
|
||
|
|
If the given file does not exist or contains no HSTS entries at startup, the
|
||
|
|
HSTS cache simply starts empty. Setting the file name to NULL or "" only
|
||
|
|
enables HSTS without reading from or writing to any file.
|
||
|
|
|
||
|
|
If this option is set multiple times, libcurl loads cache entries from each
|
||
|
|
given file but only stores the last used name for later writing.
|
||
|
|
.SH "FILE FORMAT"
|
||
|
|
The HSTS cache is saved to and loaded from a text file with one entry per
|
||
|
|
physical line. Each line in the file has the following format:
|
||
|
|
|
||
|
|
[host] [stamp]
|
||
|
|
|
||
|
|
[host] is the domain name for the entry and the name is dot-prefixed if it is
|
||
|
|
an entry valid for all subdomains to the name as well or only for the exact
|
||
|
|
name.
|
||
|
|
|
||
|
|
[stamp] is the time (in UTC) when the entry expires and it uses the format
|
||
|
|
\&"YYYYMMDD HH:MM:SS".
|
||
|
|
|
||
|
|
Lines starting with "#" are treated as comments and are ignored. There is
|
||
|
|
currently no length or size limit.
|
||
|
|
.SH DEFAULT
|
||
|
|
NULL, no file name
|
||
|
|
.SH PROTOCOLS
|
||
|
|
HTTPS and HTTP
|
||
|
|
.SH EXAMPLE
|
||
|
|
.nf
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
CURL *curl = curl_easy_init();
|
||
|
|
if(curl) {
|
||
|
|
curl_easy_setopt(curl, CURLOPT_HSTS, "/home/user/.hsts-cache");
|
||
|
|
curl_easy_perform(curl);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
.fi
|
||
|
|
.SH AVAILABILITY
|
||
|
|
Added in 7.74.0
|
||
|
|
.SH RETURN VALUE
|
||
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR CURLOPT_ALTSVC (3),
|
||
|
|
.BR CURLOPT_HSTS_CTRL (3),
|
||
|
|
.BR CURLOPT_RESOLVE (3)
|