Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_CAINFO.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
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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 - 2019, 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_CAINFO 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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24 .SH NAME
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25 CURLOPT_CAINFO \- path to Certificate Authority (CA) bundle
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26 .SH SYNOPSIS
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27 #include <curl/curl.h>
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29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CAINFO, char *path);
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30 .SH DESCRIPTION
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31 Pass a char * to a zero terminated string naming a file holding one or more
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32 certificates to verify the peer with.
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33
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34 If \fICURLOPT_SSL_VERIFYPEER(3)\fP is zero and you avoid verifying the
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35 server's certificate, \fICURLOPT_CAINFO(3)\fP need not even indicate an
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36 accessible file.
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37
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38 This option is by default set to the system path where libcurl's cacert bundle
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39 is assumed to be stored, as established at build time.
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40
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41 If curl is built against the NSS SSL library, the NSS PEM PKCS#11 module
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42 (libnsspem.so) needs to be available for this option to work properly.
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43 Starting with curl-7.55.0, if both \fICURLOPT_CAINFO(3)\fP and
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44 \fICURLOPT_CAPATH(3)\fP are unset, NSS-linked libcurl tries to load
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45 libnssckbi.so, which contains a more comprehensive set of trust information
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46 than supported by nss-pem, because libnssckbi.so also includes information
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47 about distrusted certificates.
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48
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49 (iOS and macOS) When curl uses Secure Transport this option is supported. If
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50 the option is not set, then curl will use the certificates in the system and
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51 user Keychain to verify the peer.
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52
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53 (Schannel) This option is supported for Schannel in Windows 7 or later but we
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54 recommend not using it until Windows 8 since it works better starting then.
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55 If the option is not set, then curl will use the certificates in the Windows'
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56 store of root certificates (the default for Schannel).
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57
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58 The application does not have to keep the string around after setting this
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59 option.
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60 .SH DEFAULT
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61 Built-in system specific. When curl is built with Secure Transport or
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62 Schannel, this option is not set by default.
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63 .SH PROTOCOLS
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64 All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
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65 .SH EXAMPLE
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66 .nf
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67 CURL *curl = curl_easy_init();
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68 if(curl) {
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69 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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70 curl_easy_setopt(curl, CURLOPT_CAINFO, "/etc/certs/cabundle.pem");
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71 ret = curl_easy_perform(curl);
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72 curl_easy_cleanup(curl);
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73 }
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74 .fi
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75 .SH AVAILABILITY
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76 For the SSL engines that don't support certificate files the CURLOPT_CAINFO
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77 option is ignored. Schannel support added in libcurl 7.60.
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78 .SH RETURN VALUE
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79 Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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80 CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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81 .SH "SEE ALSO"
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82 .BR CURLOPT_CAPATH "(3), "
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83 .BR CURLOPT_SSL_VERIFYPEER "(3), " CURLOPT_SSL_VERIFYHOST "(3), "