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- CURL_GLOBAL_SSL This option was changed in libcurl 7.57.0 and clearly it has not caused too many issues and a lot of time has passed. - Store TLS context per transfer instead of per connection This is a possible future optimization. One that is much less important and interesting since the added support for CA caching. - Microsoft telnet server This bug was filed in May 2007 against curl 7.16.1 and we have not received further reports. - active FTP over a SOCKS Actually, proxies in general is not working with active FTP mode. This is now added in proxy documentation. - DICT responses show the underlying protocol curl still does this, but since this is now an established behavior since forever we cannot change it easily and adding an option for it seems crazy as this protocol is not so little its not worth it. Let's just live with it. - Secure Transport disabling hostname validation also disables SNI This is an already documented restriction in Secure Transport. - CURLOPT_SEEKFUNCTION not called with CURLFORM_STREAM The curl_formadd() function is marked and documented as deprecated. No point in collecting bugs for it. It should not be used further. - STARTTRANSFER time is wrong for HTTP POSTs After close source code inspection I cannot see how this is true or that there is any special treatment for different HTTP methods. We also have not received many further reports on this, making me strongly suspect that this is no (longer an) issue. - multipart formposts file name encoding The once proposed RFC 5987-encoding is since RFC 7578 documented as MUST NOT be used. The since then implemented MIME API allows the user to set the name on their own and can thus provide it encoded as it wants. - DoH is not used for all name resolves when enabled It is questionable if users actually want to use DoH for interface and FTP port name resolving. This restriction is now documented and we advice users against using name resolving at all for these functions. Closes #10043
93 lines
3.4 KiB
Groff
93 lines
3.4 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 - 2022, 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.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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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_FTPPORT 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_FTPPORT \- make FTP transfer active
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPPORT, char *spec);
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.fi
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.SH DESCRIPTION
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Pass a pointer to a null-terminated string as parameter. It specifies that the
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FTP transfer will be made actively and the given string will be used to get
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the IP address to use for the FTP PORT instruction.
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The PORT instruction tells the remote server to connect to our specified IP
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address. The string may be a plain IP address, a host name, a network
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interface name (under Unix) or just a '-' symbol to let the library use your
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system's default IP address. Default FTP operations are passive, and thus
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will not use PORT.
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The address can be followed by a ':' to specify a port, optionally followed by
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a '-' to specify a port range. If the port specified is 0, the operating
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system will pick a free port. If a range is provided and all ports in the
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range are not available, libcurl will report CURLE_FTP_PORT_FAILED for the
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handle. Invalid port/range settings are ignored. IPv6 addresses followed by a
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port or port range have to be in brackets. IPv6 addresses without port/range
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specifier can be in brackets.
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Examples with specified ports:
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.nf
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eth0:0
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192.168.1.2:32000-33000
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curl.se:32123
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[::1]:1234-4567
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.fi
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We strongly advise against specifying the address with a name, as it causes
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libcurl to do a blocking name resolve call to retrieve the IP address. That
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name resolve operation will \fBnot\fP use DNS-over-HTTPS even if
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\fICURLOPT_DOH_URL(3)\fP is set.
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You disable PORT again and go back to using the passive version by setting
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this option to NULL.
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The application does not have to keep the string around after setting this
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option.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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FTP
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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/old-server/file.txt");
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curl_easy_setopt(curl, CURLOPT_FTPPORT, "-");
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ret = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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.fi
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.SH AVAILABILITY
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Port range support was added in 7.19.5
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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.SH "SEE ALSO"
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.BR CURLOPT_FTP_USE_EPRT "(3), " CURLOPT_FTP_USE_EPSV "(3), "
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