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https://github.com/moparisthebest/curl
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9a8b3b3e13
Reported by the new script 'scripts/copyright.pl'. The script has a regex whitelist for the files that don't need copyright headers. Removed three (mostly usesless) README files from docs/ Closes #5141
71 lines
2.6 KiB
Groff
71 lines
2.6 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 - 2020, 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 CURLOPT_USE_SSL 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_USE_SSL \- request using SSL / TLS for the transfer
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_USE_SSL, long level);
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.SH DESCRIPTION
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Pass a long using one of the values from below, to make libcurl use your
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desired \fIlevel\fP of SSL for the transfer.
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These are all protocols that start out plain text and get "upgraded" to SSL
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using the STARTTLS command.
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This is for enabling SSL/TLS when you use FTP, SMTP, POP3, IMAP etc.
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.IP CURLUSESSL_NONE
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Don't attempt to use SSL.
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.IP CURLUSESSL_TRY
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Try using SSL, proceed as normal otherwise.
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.IP CURLUSESSL_CONTROL
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Require SSL for the control connection or fail with \fICURLE_USE_SSL_FAILED\fP.
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.IP CURLUSESSL_ALL
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Require SSL for all communication or fail with \fICURLE_USE_SSL_FAILED\fP.
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.SH DEFAULT
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CURLUSESSL_NONE
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.SH PROTOCOLS
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FTP, SMTP, POP3, IMAP
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/file.ext");
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/* require use of SSL for this, or fail */
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curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
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/* Perform the request */
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curl_easy_perform(curl);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.11.0. This option was known as CURLOPT_FTP_SSL up to 7.16.4, and
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the constants were known as CURLFTPSSL_*
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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 CURLOPT_SSLVERSION "(3), " CURLOPT_PROXY_SSLVERSION "(3), "
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.BR CURLOPT_SSL_OPTIONS "(3), "
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