Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1 | .\" ************************************************************************** |
| 2 | .\" * _ _ ____ _ |
| 3 | .\" * Project ___| | | | _ \| | |
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Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 8 | .\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 9 | .\" * |
| 10 | .\" * This software is licensed as described in the file COPYING, which |
| 11 | .\" * you should have received as part of this distribution. The terms |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 12 | .\" * are also available at https://curl.haxx.se/docs/copyright.html. |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 13 | .\" * |
| 14 | .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
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| 16 | .\" * furnished to do so, under the terms of the COPYING file. |
| 17 | .\" * |
| 18 | .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| 19 | .\" * KIND, either express or implied. |
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Elliott Hughes | 1ef06ba | 2018-05-30 15:43:58 -0700 | [diff] [blame^] | 23 | .TH CURLOPT_FTPPORT 3 "May 30, 2017" "libcurl 7.60.0" "curl_easy_setopt options" |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 24 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 25 | .SH NAME |
| 26 | CURLOPT_FTPPORT \- make FTP transfer active |
| 27 | .SH SYNOPSIS |
| 28 | #include <curl/curl.h> |
| 29 | |
| 30 | CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTPPORT, char *spec); |
| 31 | .SH DESCRIPTION |
| 32 | Pass a pointer to a zero terminated string as parameter. It specifies that the |
| 33 | FTP transfer will be made actively and the given string will be used to get |
| 34 | the IP address to use for the FTP PORT instruction. |
| 35 | |
| 36 | The PORT instruction tells the remote server to connect to our specified IP |
| 37 | address. The string may be a plain IP address, a host name, a network |
| 38 | interface name (under Unix) or just a '-' symbol to let the library use your |
| 39 | system's default IP address. Default FTP operations are passive, and thus |
| 40 | won't use PORT. |
| 41 | |
| 42 | The address can be followed by a ':' to specify a port, optionally followed by |
| 43 | a '-' to specify a port range. If the port specified is 0, the operating |
| 44 | system will pick a free port. If a range is provided and all ports in the |
| 45 | range are not available, libcurl will report CURLE_FTP_PORT_FAILED for the |
| 46 | handle. Invalid port/range settings are ignored. IPv6 addresses followed by |
| 47 | a port or portrange have to be in brackets. IPv6 addresses without port/range |
| 48 | specifier can be in brackets. |
| 49 | |
| 50 | Examples with specified ports: |
| 51 | |
| 52 | .nf |
| 53 | eth0:0 |
| 54 | 192.168.1.2:32000-33000 |
| 55 | curl.se:32123 |
| 56 | [::1]:1234-4567 |
| 57 | .fi |
| 58 | |
| 59 | You disable PORT again and go back to using the passive version by setting |
| 60 | this option to NULL. |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 61 | |
| 62 | The application does not have to keep the string around after setting this |
| 63 | option. |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 64 | .SH DEFAULT |
| 65 | NULL |
| 66 | .SH PROTOCOLS |
| 67 | FTP |
| 68 | .SH EXAMPLE |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 69 | .nf |
| 70 | CURL *curl = curl_easy_init(); |
| 71 | if(curl) { |
| 72 | curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/old-server/file.txt"); |
| 73 | curl_easy_setopt(curl, CURLOPT_FTPPORT, "-"); |
| 74 | ret = curl_easy_perform(curl); |
| 75 | curl_easy_cleanup(curl); |
| 76 | } |
| 77 | .fi |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 78 | .SH AVAILABILITY |
| 79 | Port range support was added in 7.19.5 |
| 80 | .SH RETURN VALUE |
| 81 | Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or |
| 82 | CURLE_OUT_OF_MEMORY if there was insufficient heap space. |
| 83 | .SH "SEE ALSO" |
| 84 | .BR CURLOPT_FTP_USE_EPRT "(3), " CURLOPT_FTP_USE_EPSV "(3), " |