annotate mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_FTPPORT.3 @ 17:dd9cdb856310

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
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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 - 2017, 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_FTPPORT 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_FTPPORT \- make FTP transfer active
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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_FTPPORT, char *spec);
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30 .SH DESCRIPTION
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31 Pass a pointer to a zero terminated string as parameter. It specifies that the
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32 FTP transfer will be made actively and the given string will be used to get
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33 the IP address to use for the FTP PORT instruction.
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34
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35 The PORT instruction tells the remote server to connect to our specified IP
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36 address. The string may be a plain IP address, a host name, a network
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37 interface name (under Unix) or just a '-' symbol to let the library use your
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38 system's default IP address. Default FTP operations are passive, and thus
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39 won't use PORT.
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41 The address can be followed by a ':' to specify a port, optionally followed by
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42 a '-' to specify a port range. If the port specified is 0, the operating
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43 system will pick a free port. If a range is provided and all ports in the
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44 range are not available, libcurl will report CURLE_FTP_PORT_FAILED for the
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45 handle. Invalid port/range settings are ignored. IPv6 addresses followed by
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46 a port or portrange have to be in brackets. IPv6 addresses without port/range
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47 specifier can be in brackets.
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48
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49 Examples with specified ports:
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50
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51 .nf
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52 eth0:0
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53 192.168.1.2:32000-33000
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54 curl.se:32123
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55 [::1]:1234-4567
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56 .fi
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57
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58 You disable PORT again and go back to using the passive version by setting
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59 this option to NULL.
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60
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61 The application does not have to keep the string around after setting this
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62 option.
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63 .SH DEFAULT
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64 NULL
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65 .SH PROTOCOLS
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66 FTP
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67 .SH EXAMPLE
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68 .nf
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69 CURL *curl = curl_easy_init();
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70 if(curl) {
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71 curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/old-server/file.txt");
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72 curl_easy_setopt(curl, CURLOPT_FTPPORT, "-");
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73 ret = curl_easy_perform(curl);
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74 curl_easy_cleanup(curl);
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75 }
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76 .fi
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77 .SH AVAILABILITY
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78 Port range support was added in 7.19.5
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79 .SH RETURN VALUE
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80 Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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81 CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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82 .SH "SEE ALSO"
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83 .BR CURLOPT_FTP_USE_EPRT "(3), " CURLOPT_FTP_USE_EPSV "(3), "