74 строки
2.8 KiB
Groff
74 строки
2.8 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 2020, 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.
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH CURLOPT_HSTS_CTRL 3 "4 Sep 2020" "libcurl 7.74.0" "curl_easy_setopt options"
|
|
.SH NAME
|
|
CURLOPT_HSTS_CTRL \- control HSTS behavior
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
#define CURLHSTS_ENABLE (1<<0)
|
|
#define CURLHSTS_READONLYFILE (1<<1)
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HSTS_CTRL, long bitmask);
|
|
.fi
|
|
.SH EXPERIMENTAL
|
|
Warning: this feature is early code and is marked as experimental. It can only
|
|
be enabled by explicitly telling configure with \fB--enable-hsts\fP. You are
|
|
advised to not ship this in production before the experimental label is
|
|
removed.
|
|
.SH DESCRIPTION
|
|
HSTS (HTTP Strict Transport Security) means that an HTTPS server can instruct
|
|
the client to not contact it again over clear-text HTTP for a certain period
|
|
into the future. libcurl will then automatically redirect HTTP attempts to
|
|
such hosts to instead use HTTPS. This is done by libcurl retaining this
|
|
knowledge in an in-memory cache.
|
|
|
|
Populate the long \fIbitmask\fP with the correct set of features to instruct
|
|
libcurl how to handle HSTS for the transfers using this handle.
|
|
.SH BITS
|
|
.IP "CURLHSTS_ENABLE"
|
|
Enable the in-memory HSTS cache for this handle.
|
|
.IP "CURLHSTS_READONLYFILE"
|
|
Make the HSTS file (if specified) read-only - makes libcurl not save the cache
|
|
to the file when closing the handle.
|
|
.SH DEFAULT
|
|
0. HSTS is disabled by default.
|
|
.SH PROTOCOLS
|
|
HTTPS and HTTP
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_HSTS_CTRL, CURLHSTS_ENABLE);
|
|
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_HSTS "(3), " CURLOPT_CONNECT_TO "(3), " CURLOPT_RESOLVE "(3), "
|
|
.BR CURLOPT_ALTSVC "(3), "
|