Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_ISSUERCERT.3 @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 .\" **************************************************************************
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2 .\" * _ _ ____ _
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3 .\" * Project ___| | | | _ \| |
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4 .\" * / __| | | | |_) | |
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5 .\" * | (__| |_| | _ <| |___
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6 .\" * \___|\___/|_| \_\_____|
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7 .\" *
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8 .\" * Copyright (C) 1998 - 2014, 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 .\" *
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10 .\" * This software is licensed as described in the file COPYING, which
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11 .\" * you should have received as part of this distribution. The terms
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12 .\" * are also available at https://curl.haxx.se/docs/copyright.html.
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13 .\" *
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14 .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 .\" * copies of the Software, and permit persons to whom the Software is
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16 .\" * furnished to do so, under the terms of the COPYING file.
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17 .\" *
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18 .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 .\" * KIND, either express or implied.
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20 .\" *
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21 .\" **************************************************************************
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22 .\"
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23 .TH CURLOPT_ISSUERCERT 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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24 .SH NAME
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25 CURLOPT_ISSUERCERT \- issuer SSL certificate filename
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26 .SH SYNOPSIS
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27 #include <curl/curl.h>
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28
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29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ISSUERCERT, char *file);
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30 .SH DESCRIPTION
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31 Pass a char * to a zero terminated string naming a \fIfile\fP holding a CA
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32 certificate in PEM format. If the option is set, an additional check against
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33 the peer certificate is performed to verify the issuer is indeed the one
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34 associated with the certificate provided by the option. This additional check
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35 is useful in multi-level PKI where one needs to enforce that the peer
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36 certificate is from a specific branch of the tree.
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37
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38 This option makes sense only when used in combination with the
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39 \fICURLOPT_SSL_VERIFYPEER(3)\fP option. Otherwise, the result of the check is
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40 not considered as failure.
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41
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42 A specific error code (CURLE_SSL_ISSUER_ERROR) is defined with the option,
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43 which is returned if the setup of the SSL/TLS session has failed due to a
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44 mismatch with the issuer of peer certificate (\fICURLOPT_SSL_VERIFYPEER(3)\fP
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45 has to be set too for the check to fail). (Added in 7.19.0)
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46
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47 The application does not have to keep the string around after setting this
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48 option.
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49 .SH DEFAULT
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50 NULL
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51 .SH PROTOCOLS
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52 All TLS-based protocols
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53 .SH EXAMPLE
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54 .nf
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55 CURL *curl = curl_easy_init();
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56 if(curl) {
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57 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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58 curl_easy_setopt(curl, CURLOPT_ISSUERCERT, "/etc/certs/cacert.pem");
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59 ret = curl_easy_perform(curl);
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60 curl_easy_cleanup(curl);
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61 }
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62 .fi
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63 .SH AVAILABILITY
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64 If built TLS enabled
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65 .SH RETURN VALUE
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66 Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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67 CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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68 .SH "SEE ALSO"
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69 .BR CURLOPT_CRLFILE "(3), " CURLOPT_SSL_VERIFYPEER "(3), "