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comparison mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_TLS13_CIPHERS.3 @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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23 .TH CURLOPT_TLS13_CIPHERS 3 "25 May 2018" "libcurl 7.61.0" "curl_easy_setopt options"
24 .SH NAME
25 CURLOPT_TLS13_CIPHERS \- specify ciphers suites to use for TLS 1.3
26 .SH SYNOPSIS
27 #include <curl/curl.h>
28
29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TLS13_CIPHERS, char *list);
30 .SH DESCRIPTION
31 Pass a char *, pointing to a zero terminated string holding the list of cipher
32 suites to use for the TLS 1.3 connection. The list must be syntactically
33 correct, it consists of one or more cipher suite strings separated by colons.
34
35 You'll find more details about cipher lists on this URL:
36
37 https://curl.haxx.se/docs/ssl-ciphers.html
38
39 This option is currently used only when curl is built to use OpenSSL 1.1.1 or
40 later. If you are using a different SSL backend you can try setting TLS 1.3
41 cipher suites by using the CURLOPT_SSL_CIPHER_LIST option.
42
43 The application does not have to keep the string around after setting this
44 option.
45 .SH DEFAULT
46 NULL, use internal default
47 .SH PROTOCOLS
48 All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
49 .SH EXAMPLE
50 .nf
51 CURL *curl = curl_easy_init();
52 if(curl) {
53 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
54 curl_easy_setopt(curl, CURLOPT_TLS13_CIPHERS,
55 "TLS13-CHACHA20-POLY1305-SHA256");
56 ret = curl_easy_perform(curl);
57 curl_easy_cleanup(curl);
58 }
59 .fi
60 .SH AVAILABILITY
61 Added in 7.61.0.
62 Available when built with OpenSSL >= 1.1.1.
63 .SH RETURN VALUE
64 Returns CURLE_OK if supported, CURLE_NOT_BUILT_IN otherwise.
65 .SH "SEE ALSO"
66 .BR CURLOPT_SSL_CIPHER_LIST "(3), " CURLOPT_SSLVERSION "(3), "
67 .BR CURLOPT_PROXY_SSL_CIPHER_LIST "(3), " CURLOPT_PROXY_TLS13_CIPHERS "(3), "
68 .BR CURLOPT_PROXY_SSLVERSION "(3), " CURLOPT_USE_SSL "(3), "