mirror of
https://github.com/moparisthebest/curl
synced 2024-11-17 23:15:08 -05:00
180501cb02
Stick to "Schannel" everywhere. The configure option --with-winssl is kept to allow existing builds to work but --with-schannel is added as an alias. Closes #3504
72 lines
3.0 KiB
Groff
72 lines
3.0 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2019, 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.haxx.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_SSL_OPTIONS 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
|
|
.SH NAME
|
|
CURLOPT_SSL_OPTIONS \- set SSL behavior options
|
|
.SH SYNOPSIS
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_OPTIONS, long bitmask);
|
|
.SH DESCRIPTION
|
|
Pass a long with a bitmask to tell libcurl about specific SSL behaviors.
|
|
|
|
\fICURLSSLOPT_ALLOW_BEAST\fP tells libcurl to not attempt to use any
|
|
workarounds for a security flaw in the SSL3 and TLS1.0 protocols. If this
|
|
option isn't used or this bit is set to 0, the SSL layer libcurl uses may use a
|
|
work-around for this flaw although it might cause interoperability problems
|
|
with some (older) SSL implementations. WARNING: avoiding this work-around
|
|
lessens the security, and by setting this option to 1 you ask for exactly that.
|
|
This option is only supported for DarwinSSL, NSS and OpenSSL.
|
|
|
|
Added in 7.44.0:
|
|
|
|
\fICURLSSLOPT_NO_REVOKE\fP tells libcurl to disable certificate revocation
|
|
checks for those SSL backends where such behavior is present. \fBCurrently this
|
|
option is only supported for Schannel (the native Windows SSL library), with an
|
|
exception in the case of Windows' Untrusted Publishers blacklist which it seems
|
|
can't be bypassed.\fP This option may have broader support to accommodate other
|
|
SSL backends in the future.
|
|
https://curl.haxx.se/docs/ssl-compared.html
|
|
.SH DEFAULT
|
|
0
|
|
.SH PROTOCOLS
|
|
All TLS-based protocols
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
|
|
/* weaken TLS only for use with silly servers */
|
|
curl_easy_setopt(curl, CURLOPT_SSL_OPTIONS, CURLSSLOPT_ALLOW_BEAST |
|
|
CURLSSLOPT_NO_REVOKE);
|
|
ret = curl_easy_perform(curl);
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.25.0
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
|
.SH "SEE ALSO"
|
|
.BR CURLOPT_SSLVERSION "(3), " CURLOPT_SSL_CIPHER_LIST "(3), "
|