curl/docs/libcurl/opts/CURLOPT_FTP_FILEMETHOD.md
Daniel Stenberg eefcc1bda4
docs: introduce "curldown" for libcurl man page format
curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of leading headers with meta-data
- Supports a small subset of markdown
- Uses .md file extensions for editors/IDE/GitHub to treat them nicely
- Generates man pages very similar to the previous ones
- Generates man pages that still convert nicely to HTML on the website
- Detects and highlights mentions of curl symbols automatically (when
  their man page section is specified)

tools:

- cd2nroff: converts from curldown to nroff man page
- nroff2cd: convert an (old) nroff man page to curldown
- cdall: convert many nroff pages to curldown versions
- cd2cd: verifies and updates a curldown to latest curldown

This setup generates .3 versions of all the curldown versions at build time.

CI:

Since the documentation is now technically markdown in the eyes of many
things, the CI runs many more tests and checks on this documentation,
including proselint, link checkers and tests that make sure we capitalize the
first letter after a period...

Closes #12730
2024-01-23 00:29:02 +01:00

87 lines
1.9 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_FTP_FILEMETHOD
Section: 3
Source: libcurl
See-also:
- CURLOPT_DIRLISTONLY (3)
- CURLOPT_FTP_SKIP_PASV_IP (3)
---
# NAME
CURLOPT_FTP_FILEMETHOD - select directory traversing method for FTP
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_FILEMETHOD,
long method);
~~~
# DESCRIPTION
Pass a long telling libcurl which *method* to use to reach a file on a
FTP(S) server.
This option exists because some server implementations are not compliant to
what the standards say should work.
The argument should be one of the following alternatives:
## CURLFTPMETHOD_MULTICWD
libcurl does a single CWD operation for each path part in the given URL. For
deep hierarchies this means many commands. This is how RFC 1738 says it should
be done. This is the default but the slowest behavior.
## CURLFTPMETHOD_NOCWD
libcurl makes no CWD at all. libcurl does SIZE, RETR, STOR etc and gives a
full path to the server for all these commands. This is the fastest behavior
since it skips having to change directories.
## CURLFTPMETHOD_SINGLECWD
libcurl does one CWD with the full target directory and then operates on the
file &"normally" (like in the multicwd case). This is somewhat more standards
compliant than 'nocwd' but without the full penalty of 'multicwd'.
# DEFAULT
CURLFTPMETHOD_MULTICWD
# PROTOCOLS
FTP
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/1/2/3/4/new.txt");
curl_easy_setopt(curl, CURLOPT_FTP_FILEMETHOD,
(long)CURLFTPMETHOD_SINGLECWD);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
~~~
# AVAILABILITY
Added in 7.15.1
# RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.