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<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
<year>2005</year><year>2013</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
</legalnotice>
<title>ssh_sftpd</title>
<date>2005-09-22</date>
<file>ssh_sftpd.sgml</file>
</header>
<module>ssh_sftpd</module>
<modulesummary>Specifies the channel process to handle an sftp subsystem.</modulesummary>
<description>
<p>Specifies a channel process to handle a sftp subsystem.</p>
</description>
<section>
<title>DATA TYPES </title>
<p><c>subsystem_spec() = {subsystem_name(), {channel_callback(), channel_init_args()}} </c></p>
<p><c>subsystem_name() = "sftp"</c></p>
<p><c>channel_callback() = atom()</c> - Name of the erlang module implementing the
subsystem using the ssh_channel behavior see
<seealso marker="ssh_channel">ssh_channel(3)</seealso></p>
<p><c> channel_init_args() = list() - The one given as argument to function
subsystem_spec/1.</c></p>
</section>
<funcs>
<func>
<name>subsystem_spec(Options) -> subsystem_spec()</name>
<fsummary>Returns the subsystem specification that allows an ssh daemon to handle the subsystem "sftp".</fsummary>
<type>
<v>Options = [{Option, Value}]</v>
</type>
<desc>
<p>Should be used together with ssh:daemon/[1,2,3]</p>
<p>Options are:</p>
<taglist>
<tag><c><![CDATA[{cwd, String}]]></c></tag>
<item>
<p>Sets the initial current working directory for the
server.</p>
</item>
<tag><c><![CDATA[{file_handler, CallbackModule}]]></c></tag>
<item>
<p>Determines which module to call for accessing
the file server. The default value is <c>ssh_sftpd_file</c> that uses the
<seealso marker="kernel:file">file</seealso> and <seealso marker="stdlib:filelib">filelib</seealso> API:s to access the standard OTP file
server. This option may be used to plug in
other file servers.</p>
</item>
<tag><c><![CDATA[{max_files, Integer}]]></c></tag>
<item>
<p>The default value is <c>0</c>, which means that there is no upper limit.
If supplied, the number of filenames returned to the sftp client per <c>READDIR</c>
request is limited to at most the given value.</p>
</item>
<tag><c><![CDATA[{root, String}]]></c></tag>
<item>
<p>Sets the sftp root directory. The user will then not be
able to see any files above this root. If for instance
the root is set to <c>/tmp</c> the user will see this
directory as <c>/</c> and if the user does cd <c>/etc</c>
the user will end up in <c>/tmp/etc</c>.
</p>
</item>
<tag><c><![CDATA[{sftpd_vsn, integer()}]]></c></tag>
<item>
<p>Sets the sftp version to use, defaults to 5. Version 6 is under
development and limited.</p>
</item>
</taglist>
</desc>
</func>
</funcs>
</erlref>
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