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.\" **************************************************************************
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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_PROTOCOLS 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_PROTOCOLS \- set allowed protocols
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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_PROTOCOLS, long bitmask);
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.SH DESCRIPTION
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Pass a long that holds a bitmask of CURLPROTO_* defines. If used, this bitmask
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limits what protocols libcurl may use in the transfer. This allows you to have
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a libcurl built to support a wide range of protocols but still limit specific
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transfers to only be allowed to use a subset of them. By default libcurl will
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accept all protocols it supports (\fICURLPROTO_ALL\fP). See also
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\fICURLOPT_REDIR_PROTOCOLS(3)\fP.
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These are the available protocol defines:
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.nf
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CURLPROTO_DICT
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CURLPROTO_FILE
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CURLPROTO_FTP
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CURLPROTO_FTPS
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CURLPROTO_GOPHER
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CURLPROTO_HTTP
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CURLPROTO_HTTPS
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CURLPROTO_IMAP
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CURLPROTO_IMAPS
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CURLPROTO_LDAP
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CURLPROTO_LDAPS
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CURLPROTO_POP3
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CURLPROTO_POP3S
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CURLPROTO_RTMP
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CURLPROTO_RTMPE
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CURLPROTO_RTMPS
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CURLPROTO_RTMPT
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CURLPROTO_RTMPTE
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CURLPROTO_RTMPTS
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CURLPROTO_RTSP
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CURLPROTO_SCP
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CURLPROTO_SFTP
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CURLPROTO_SMB
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CURLPROTO_SMBS
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CURLPROTO_SMTP
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CURLPROTO_SMTPS
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CURLPROTO_TELNET
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CURLPROTO_TFTP
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.fi
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.SH DEFAULT
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All protocols built-in
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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curl = curl_easy_init();
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if(curl) {
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/* pass in the URL from an external source */
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curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
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/* only allow HTTP, TFTP and SFTP */
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curl_easy_setopt(curl, CURLOPT_PROTOCOLS,
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CURLPROTO_HTTP | CURLPROTO_TFTP | CURLPROTO_SFTP);
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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 7.19.4
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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_REDIR_PROTOCOLS "(3), " CURLOPT_URL "(3), "
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