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82 lines
3.0 KiB
Groff
82 lines
3.0 KiB
Groff
.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.haxx.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLINFO_CERTINFO 3 "12 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options"
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.SH NAME
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CURLINFO_CERTINFO \- get the TLS certificate chain
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CERTINFO,
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struct curl_certinfo *chainp);
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.SH DESCRIPTION
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Pass a pointer to a 'struct curl_certinfo *' and you'll get it set to point to
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struct that holds a number of linked lists with info about the certificate
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chain, assuming you had \fICURLOPT_CERTINFO(3)\fP enabled when the request was
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made. The struct reports how many certs it found and then you can extract info
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for each of those certs by following the linked lists. The info chain is
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provided in a series of data in the format "name:content" where the content is
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for the specific named data. See also the certinfo.c example.
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.SH PROTOCOLS
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All TLS-based
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.SH EXAMPLE
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.nf
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curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
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/* connect to any HTTPS site, trusted or not */
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
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curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
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res = curl_easy_perform(curl);
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if (!res) {
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struct curl_certinfo *ci;
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res = curl_easy_getinfo(curl, CURLINFO_CERTINFO, &ci);
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if (!res) {
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printf("%d certs!\\n", ci->num_of_certs);
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for(i = 0; i < ci->num_of_certs; i++) {
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struct curl_slist *slist;
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for(slist = ci->certinfo[i]; slist; slist = slist->next)
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printf("%s\\n", slist->data);
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}
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}
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}
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curl_easy_cleanup(curl);
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}
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.fi
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.SH AVAILABILITY
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This option is only working in libcurl built with OpenSSL, NSS, schannel or
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GSKit support. schannel support added in 7.50.0
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Added in 7.19.1
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
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