diff options
| author | Viktor Szakats <vszakats@users.noreply.github.com> | 2017-08-05 09:26:04 +0000 |
|---|---|---|
| committer | Jay Satiro <raysatiro@yahoo.com> | 2017-08-17 03:32:00 -0400 |
| commit | b7b4dc0d49543175ab0d9bb1cdc257a2d7f7cf0a (patch) | |
| tree | 40a6f41fe368481822bc8807ef219cf279d7a500 /docs/libcurl/opts | |
| parent | d18941ea175503ba0cf0792c1622c7a4a7c4b880 (diff) | |
ssh: add the ability to enable compression (for SCP/SFTP)
The required low-level logic was already available as part of
`libssh2` (via `LIBSSH2_FLAG_COMPRESS` `libssh2_session_flag()`[1]
option.)
This patch adds the new `libcurl` option `CURLOPT_SSH_COMPRESSION`
(boolean) and the new `curl` command-line option `--compressed-ssh`
to request this `libssh2` feature. To have compression enabled, it
is required that the SSH server supports a (zlib) compatible
compression method and that `libssh2` was built with `zlib` support
enabled.
[1] https://www.libssh2.org/libssh2_session_flag.html
Ref: https://github.com/curl/curl/issues/1732
Closes https://github.com/curl/curl/pull/1735
Diffstat (limited to 'docs/libcurl/opts')
| -rw-r--r-- | docs/libcurl/opts/CURLOPT_SSH_COMPRESSION.3 | 58 | ||||
| -rw-r--r-- | docs/libcurl/opts/Makefile.inc | 1 |
2 files changed, 59 insertions, 0 deletions
diff --git a/docs/libcurl/opts/CURLOPT_SSH_COMPRESSION.3 b/docs/libcurl/opts/CURLOPT_SSH_COMPRESSION.3 new file mode 100644 index 000000000..193320512 --- /dev/null +++ b/docs/libcurl/opts/CURLOPT_SSH_COMPRESSION.3 @@ -0,0 +1,58 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. +.\" * +.\" * This software is licensed as described in the file COPYING, which +.\" * you should have received as part of this distribution. The terms +.\" * are also available at https://curl.haxx.se/docs/copyright.html. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH CURLOPT_SSH_COMPRESSION 3 "05 Aug 2017" "libcurl 7.56.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_SSH_COMPRESSION \- enables automatic decompression of HTTP downloads +.SH SYNOPSIS +#include <curl/curl.h> + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_COMPRESSION, long enable); +.SH DESCRIPTION +Pass a long as parameter to enable or disable. + +Enables built-in SSH compression. +This is a request, not an order; the server may or may not do it. +.SH DEFAULT + +.SH PROTOCOLS +All SSH based protocols: SCP, SFTP +.SH EXAMPLE +.nf +CURL *curl = curl_easy_init(); +if(curl) { + curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com"); + + /* enable built-in compression */ + curl_easy_setopt(curl, CURLOPT_SSH_COMPRESSION, 1L); + + /* Perform the request */ + curl_easy_perform(curl); +} +.fi +.SH AVAILABILITY +Added in 7.56.0 +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or +CURLE_OUT_OF_MEMORY if there was insufficient heap space. +.SH "SEE ALSO" +.BR CURLOPT_ACCEPT_ENCODING "(3), " CURLOPT_TRANSFER_ENCODING "(3), " diff --git a/docs/libcurl/opts/Makefile.inc b/docs/libcurl/opts/Makefile.inc index c3db5d225..ad09dce2d 100644 --- a/docs/libcurl/opts/Makefile.inc +++ b/docs/libcurl/opts/Makefile.inc @@ -258,6 +258,7 @@ man_MANS = \ CURLOPT_SOCKS5_GSSAPI_NEC.3 \ CURLOPT_SOCKS5_GSSAPI_SERVICE.3 \ CURLOPT_SSH_AUTH_TYPES.3 \ + CURLOPT_SSH_COMPRESSION.3 \ CURLOPT_SSH_HOST_PUBLIC_KEY_MD5.3 \ CURLOPT_SSH_KEYDATA.3 \ CURLOPT_SSH_KEYFUNCTION.3 \ |