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74 lines
2.8 KiB
Groff
74 lines
2.8 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) 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.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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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_CAINFO_BLOB 3 "31 March 2021" libcurl libcurl
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.SH NAME
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CURLOPT_CAINFO_BLOB \- Certificate Authority (CA) bundle in PEM format
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO_BLOB,
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struct curl_blob *stblob);
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.fi
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.SH DESCRIPTION
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Pass a pointer to a curl_blob structure, which contains information (pointer
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and size) about a memory block with binary data of PEM encoded content holding
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one or more certificates to verify the HTTPS server with.
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If \fICURLOPT_SSL_VERIFYPEER(3)\fP is zero and you avoid verifying the
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server's certificate, \fICURLOPT_CAINFO_BLOB(3)\fP is not needed.
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This option overrides \fICURLOPT_CAINFO(3)\fP.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
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.SH EXAMPLE
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.nf
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char *strpem; /* strpem must point to a PEM string */
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CURL *curl = curl_easy_init();
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if(curl) {
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struct curl_blob blob;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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blob.data = strpem;
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blob.len = strlen(strpem);
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blob.flags = CURL_BLOB_COPY;
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curl_easy_setopt(curl, CURLOPT_CAINFO_BLOB, &blob);
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ret = curl_easy_perform(curl);
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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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Added in 7.77.0.
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This option is supported by the BearSSL (since 7.79.0), mbedTLS (since 7.81.0),
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rustls (since 7.82.0), wolfSSL (since 8.2.0), OpenSSL, Secure Transport and Schannel backends.
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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.SH "SEE ALSO"
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.BR CURLOPT_CAINFO "(3), " CURLOPT_CAPATH "(3), "
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.BR CURLOPT_SSL_VERIFYPEER "(3), " CURLOPT_SSL_VERIFYHOST "(3), "
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