2018-09-06 15:16:02 +08:00
|
|
|
.\" **************************************************************************
|
|
|
|
|
.\" * _ _ ____ _
|
|
|
|
|
.\" * Project ___| | | | _ \| |
|
|
|
|
|
.\" * / __| | | | |_) | |
|
|
|
|
|
.\" * | (__| |_| | _ <| |___
|
|
|
|
|
.\" * \___|\___/|_| \_\_____|
|
|
|
|
|
.\" *
|
|
|
|
|
.\" * Copyright (C) 2018, 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_DOH_URL 3 "18 Jun 2018" "libcurl 7.62.0" "curl_easy_setopt options"
|
|
|
|
|
.SH NAME
|
|
|
|
|
CURLOPT_DOH_URL \- provide the DNS-over-HTTPS URL
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
#include <curl/curl.h>
|
|
|
|
|
|
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DOH_URL, char *URL);
|
|
|
|
|
.SH DESCRIPTION
|
|
|
|
|
Pass in a pointer to a \fIURL\fP for the DOH server to use for name
|
2020-06-25 17:38:25 +08:00
|
|
|
resolving. The parameter should be a char * to a null-terminated string which
|
2018-09-06 15:16:02 +08:00
|
|
|
must be URL-encoded in the following format: "https://host:port/path". It MUST
|
|
|
|
|
specify a HTTPS URL.
|
|
|
|
|
|
|
|
|
|
libcurl doesn't validate the syntax or use this variable until the transfer is
|
|
|
|
|
issued. Even if you set a crazy value here, \fIcurl_easy_setopt(3)\fP will
|
|
|
|
|
still return \fICURLE_OK\fP.
|
|
|
|
|
|
|
|
|
|
curl sends POST requests to the given DNS-over-HTTPS URL.
|
|
|
|
|
|
|
|
|
|
To find the DOH server itself, which might be specified using a name, libcurl
|
|
|
|
|
will use the default name lookup function. You can bootstrap that by providing
|
|
|
|
|
the address for the DOH server with \fICURLOPT_RESOLVE(3)\fP.
|
|
|
|
|
|
|
|
|
|
Disable DOH use again by setting this option to NULL.
|
|
|
|
|
.SH DEFAULT
|
|
|
|
|
NULL - there is no default DOH URL. If this option isn't set, libcurl will use
|
|
|
|
|
the default name resolver.
|
|
|
|
|
.SH PROTOCOLS
|
|
|
|
|
All
|
|
|
|
|
.SH EXAMPLE
|
|
|
|
|
.nf
|
|
|
|
|
CURL *curl = curl_easy_init();
|
|
|
|
|
if(curl) {
|
2020-09-17 05:04:07 +08:00
|
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
2018-09-06 15:16:02 +08:00
|
|
|
curl_easy_setopt(curl, CURLOPT_DOH_URL, "https://dns.example.com");
|
|
|
|
|
curl_easy_perform(curl);
|
|
|
|
|
}
|
|
|
|
|
.fi
|
|
|
|
|
.SH AVAILABILITY
|
|
|
|
|
Added in 7.62.0
|
|
|
|
|
.SH RETURN VALUE
|
|
|
|
|
Returns CURLE_OK on success or CURLE_OUT_OF_MEMORY if there was insufficient
|
|
|
|
|
heap space.
|
|
|
|
|
|
|
|
|
|
Note that \fIcurl_easy_setopt(3)\fP won't actually parse the given string so
|
|
|
|
|
given a bad DOH URL, curl will not detect a problem until it tries to resolve
|
|
|
|
|
a name with it.
|
|
|
|
|
.SH "SEE ALSO"
|
|
|
|
|
.BR CURLOPT_VERBOSE "(3), " CURLOPT_RESOLVE "(3), "
|
