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authortmanevik <[email protected]>2015-03-19 14:00:43 +0100
committerIngela Anderton Andin <[email protected]>2015-04-22 16:18:38 +0200
commitac4107ceea994f028ae67b43dbe6676b9ccf2b3b (patch)
tree70cc58f93485b9399e66d9b51ba1af325833b0ca /lib/ssh/doc/src/ssh_connection.xml
parentb620955a8a45465de2d4c8765d7960addc4efd50 (diff)
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Editorial updates
SSH application
Diffstat (limited to 'lib/ssh/doc/src/ssh_connection.xml')
-rw-r--r--lib/ssh/doc/src/ssh_connection.xml454
1 files changed, 234 insertions, 220 deletions
diff --git a/lib/ssh/doc/src/ssh_connection.xml b/lib/ssh/doc/src/ssh_connection.xml
index 5e2926dfa6..2ca1060e9e 100644
--- a/lib/ssh/doc/src/ssh_connection.xml
+++ b/lib/ssh/doc/src/ssh_connection.xml
@@ -24,156 +24,174 @@
</legalnotice>
<title>ssh_connection</title>
+ <prepared></prepared>
+ <docno></docno>
<date></date>
+ <rev></rev>
</header>
<module>ssh_connection</module>
- <modulesummary>This module provides API functions to send <url href="http://www.ietf.org/rfc/rfc4254.txt"> SSH Connection Protocol </url>
+ <modulesummary>This module provides API functions to send
+ <url href="http://www.ietf.org/rfc/rfc4254.txt"> SSH Connection Protocol </url>
events to the other side of an SSH channel.
</modulesummary>
<description>
- <p>The SSH Connection Protocol is used by clients and servers
- (i.e. SSH channels) to communicate over the SSH connection. The
- API functions in this module sends SSH Connection Protocol events
- that are received as messages by the remote channel.
- In the case that the receiving channel is an Erlang process the
- message will be on the following format
- <c><![CDATA[{ssh_cm, ssh_connection_ref(), ssh_event_msg()}]]></c>. If the <seealso
- marker="ssh_channel">ssh_channel</seealso> behavior is used to
- implement the channel process these will be handled by
- <seealso
- marker="ssh_channel#Module:handle_ssh_msg-2">handle_ssh_msg/2 </seealso>.</p>
+ <p>The SSH Connection Protocol is used by clients and servers,
+ that is, SSH channels, to communicate over the SSH connection. The
+ API functions in this module send SSH Connection Protocol events,
+ which are received as messages by the remote channel.
+ If the receiving channel is an Erlang process, the
+ messages have the format
+ <c><![CDATA[{ssh_cm, ssh_connection_ref(), ssh_event_msg()}]]></c>.
+ If the <seealso marker="ssh_channel">ssh_channel</seealso> behavior is used to
+ implement the channel process, these messages are handled by
+ <seealso marker="ssh_channel#Module:handle_ssh_msg-2">handle_ssh_msg/2</seealso>.</p>
</description>
<section>
- <title>DATA TYPES </title>
-
- <p>Type definitions that are used more than once in this module and/or
- abstractions to indicate the intended use of the data type:</p>
-
- <p><c>boolean() = true | false </c></p>
- <p><c>string() = list of ASCII characters</c></p>
- <p><c>timeout() = infinity | integer() - in milliseconds.</c></p>
- <p><c>ssh_connection_ref() - opaque to the user returned by
- ssh:connect/3 or sent to an SSH channel processes</c></p>
- <p><c>ssh_channel_id() = integer() </c></p>
- <p><c>ssh_data_type_code() = 1 ("stderr") | 0 ("normal") are
- currently valid values see</c> <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254 </url> section 5.2.</p>
- <p><c>ssh_request_status() = success | failure</c></p>
- <p><c>event() = {ssh_cm, ssh_connection_ref(), ssh_event_msg()} </c></p>
- <p><c>ssh_event_msg() = data_events() | status_events() | terminal_events() </c></p>
- <p><c>reason() = timeout | closed </c></p>
+ <title>DATA TYPES</title>
+
+ <p>Type definitions that are used more than once in this module,
+ or abstractions to indicate the intended use of the data
+ type, or both:</p>
+
+ <taglist>
+ <tag><c>boolean()</c></tag>
+ <item><p>= <c>true | false </c></p></item>
+ <tag><c>string()</c></tag>
+ <item><p>= list of ASCII characters</p></item>
+ <tag><c>timeout()</c></tag>
+ <item><p>= <c>infinity | integer()</c> in milliseconds</p></item>
+ <tag><c>ssh_connection_ref()</c></tag>
+ <item><p>Opaque to the user, returned by
+ <c>ssh:connect/3</c> or sent to an SSH channel processes</p></item>
+ <tag><c>ssh_channel_id()</c></tag>
+ <item><p>= <c>integer()</c></p></item>
+ <tag><c>ssh_data_type_code()</c></tag>
+ <item><p>= <c>1</c> ("stderr") | <c>0</c> ("normal") are
+ valid values, see
+ <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url> Section 5.2.</p></item>
+ <tag><c>ssh_request_status() ssh_request_status()</c></tag>
+ <item><p>= <c>success | failure</c></p></item>
+ <tag><c>event()</c></tag>
+ <item><p>= <c>{ssh_cm, ssh_connection_ref(), ssh_event_msg()}</c></p></item>
+ <tag><c>ssh_event_msg()</c></tag>
+ <item><p>= <c>data_events() | status_events() | terminal_events()</c></p></item>
+ <tag><c>reason()</c></tag>
+ <item><p>= <c>timeout | closed</c></p></item>
+ </taglist>
<taglist>
- <tag><b>data_events()</b></tag>
+ <tag><em>data_events()</em></tag>
<item>
<taglist>
<tag><c><![CDATA[{data, ssh_channel_id(), ssh_data_type_code(), binary() = Data}]]></c></tag>
- <item> Data has arrived on the channel. This event is sent as
- result of calling <seealso marker="ssh_connection#send-3"> ssh_connection:send/[3,4,5] </seealso></item>
+ <item><p>Data has arrived on the channel. This event is sent as a
+ result of calling <seealso marker="ssh_connection#send-3">
+ ssh_connection:send/[3,4,5]</seealso>.</p></item>
<tag><c><![CDATA[{eof, ssh_channel_id()}]]></c></tag>
- <item>Indicates that the other side will not send any more
- data. This event is sent as result of calling <seealso
- marker="ssh_connection#send_eof-2"> ssh_connection:send_eof/2</seealso>
- </item>
+ <item><p>Indicates that the other side sends no more data.
+ This event is sent as a result of calling <seealso
+ marker="ssh_connection#send_eof-2"> ssh_connection:send_eof/2</seealso>.
+ </p></item>
</taglist>
</item>
- <tag><b>status_events()</b></tag>
+ <tag><em>status_events()</em></tag>
<item>
<taglist>
<tag><c><![CDATA[{signal, ssh_channel_id(), ssh_signal()}]]></c></tag>
- <item>A signal can be delivered to the remote process/service
- using the following message. Some systems will not support
- signals, in which case they should ignore this message. There is
- currently no funtion to generate this event as the signals
- refered to are on OS-level and not something generated by an
- Erlang program.</item>
+ <item><p>A signal can be delivered to the remote process/service
+ using the following message. Some systems do not support
+ signals, in which case they are to ignore this message. There is
+ currently no function to generate this event as the signals
+ referred to are on OS-level and not something generated by an
+ Erlang program.</p></item>
<tag><c><![CDATA[{exit_signal, ssh_channel_id(), string() = ExitSignal, string() = ErrorMsg,
string() = LanguageString}]]></c></tag>
- <item>A remote execution may terminate violently due to a signal
- then this message may be received. For details on valid string
- values see <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url> section 6.10. Special case of the signals
- mentioned above.</item>
+ <item><p>A remote execution can terminate violently because of a signal.
+ Then this message can be received. For details on valid string
+ values, see <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url>
+ Section 6.10, which shows a special case of these signals.</p></item>
<tag><c><![CDATA[{exit_status, ssh_channel_id(), integer() = ExitStatus}]]></c></tag>
- <item> When the command running at the other end terminates, the
+ <item><p>When the command running at the other end terminates, the
following message can be sent to return the exit status of the
- command. A zero 'exit_status' usually means that the command
- terminated successfully. This event is sent as result of calling
+ command. A zero <c>exit_status</c> usually means that the command
+ terminated successfully. This event is sent as a result of calling
<seealso marker="ssh_connection#exit_status-3">
- ssh_connection:exit_status/3</seealso></item>
+ ssh_connection:exit_status/3</seealso>.</p></item>
<tag><c><![CDATA[{closed, ssh_channel_id()}]]></c></tag>
- <item> This event is sent as result of calling
- <seealso marker="ssh_connection#close-2">ssh_connection:close/2</seealso> Both the handling of this
- event and sending of it will be taken care of by the
- <seealso marker="ssh_channel">ssh_channel</seealso> behavior.</item>
+ <item><p>This event is sent as a result of calling
+ <seealso marker="ssh_connection#close-2">ssh_connection:close/2</seealso>.
+ Both the handling of this event and sending it are taken care of by the
+ <seealso marker="ssh_channel">ssh_channel</seealso> behavior.</p></item>
</taglist>
</item>
- <tag><b>terminal_events()</b></tag>
+ <tag><em>terminal_events()</em></tag>
<item>
- <p> Channels implementing a shell and command execution on the
- server side should handle the following messages that may be sent by client channel processes. </p>
+ <p>Channels implementing a shell and command execution on the
+ server side are to handle the following messages that can be sent by client-
+ channel processes.</p>
- <note> <p>Events that includes a <c> WantReply</c> expects the event handling
- process to call <seealso marker="ssh_connection#reply_request-4">ssh_connection:reply_request/4</seealso>
- with the boolean value of <c> WantReply</c> as the second
- argument. </p></note>
+ <p>Events that include a <c>WantReply</c> expect the event handling
+ process to call <seealso marker="ssh_connection#reply_request-4">
+ ssh_connection:reply_request/4</seealso>
+ with the boolean value of <c>WantReply</c> as the second argument.</p>
<taglist>
<tag><c><![CDATA[{env, ssh_channel_id(), boolean() = WantReply,
string() = Var, string() = Value}]]></c></tag>
- <item> Environment variables may be passed to the shell/command
- to be started later. This event is sent as result of calling <seealso
- marker="ssh_connection#setenv-5"> ssh_connection:setenv/5</seealso>
- </item>
+ <item><p>Environment variables can be passed to the shell/command
+ to be started later. This event is sent as a result of calling <seealso
+ marker="ssh_connection#setenv-5"> ssh_connection:setenv/5</seealso>.
+ </p></item>
<tag><c><![CDATA[{pty, ssh_channel_id(),
boolean() = WantReply, {string() = Terminal, integer() = CharWidth,
integer() = RowHeight, integer() = PixelWidth, integer() = PixelHeight,
[{atom() | integer() = Opcode,
integer() = Value}] = TerminalModes}}]]></c></tag>
- <item>A pseudo-terminal has been requested for the
- session. Terminal is the value of the TERM environment
- variable value (e.g., vt100). Zero dimension parameters must
- be ignored. The character/row dimensions override the pixel
- dimensions (when nonzero). Pixel dimensions refer to the
- drawable area of the window. The <c>Opcode</c> in the
+ <item><p>A pseudo-terminal has been requested for the
+ session. <c>Terminal</c> is the value of the TERM environment
+ variable value, that is, <c>vt100</c>. Zero dimension parameters must
+ be ignored. The character/row dimensions override the pixel
+ dimensions (when non-zero). Pixel dimensions refer to the
+ drawable area of the window. <c>Opcode</c> in the
<c>TerminalModes</c> list is the mnemonic name, represented
- as an lowercase erlang atom, defined in
- <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254 </url> section 8.
- It may also be an opcode if the mnemonic name is not listed in the
- RFC. Example <c>OP code: 53, mnemonic name ECHO erlang atom:
- echo</c>.This event is sent as result of calling <seealso
- marker="ssh_connection#ptty_alloc/4">ssh_connection:ptty_alloc/4</seealso></item>
+ as a lowercase Erlang atom, defined in
+ <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url>, Section 8.
+ It can also be an <c>Opcode</c> if the mnemonic name is not listed in the
+ RFC. Example: <c>OP code: 53, mnemonic name ECHO erlang atom:
+ echo</c>. This event is sent as a result of calling <seealso
+ marker="ssh_connection#ptty_alloc/4">ssh_connection:ptty_alloc/4</seealso>.</p></item>
<tag><c><![CDATA[{shell, boolean() = WantReply}]]></c></tag>
- <item> This message will request that the user's default shell
- be started at the other end. This event is sent as result of calling <seealso
- marker="ssh_connection#shell-2"> ssh_connection:shell/2</seealso>
- </item>
+ <item><p>This message requests that the user default shell
+ is started at the other end. This event is sent as a result of calling
+ <seealso marker="ssh_connection#shell-2"> ssh_connection:shell/2</seealso>.
+ </p></item>
<tag><c><![CDATA[{window_change, ssh_channel_id(), integer() = CharWidth,
integer() = RowHeight, integer() = PixWidth, integer() = PixHeight}]]></c></tag>
- <item> When the window (terminal) size changes on the client
- side, it MAY send a message to the server side to inform it of
- the new dimensions. There is currently no API function to generate this
- event.</item>
+ <item><p>When the window (terminal) size changes on the client
+ side, it <em>can</em> send a message to the server side to inform it of
+ the new dimensions. No API function generates this event.</p></item>
<tag><c><![CDATA[{exec, ssh_channel_id(),
boolean() = WantReply, string() = Cmd}]]></c></tag>
- <item> This message will request that the server starts
- execution of the given command. This event is sent as result of calling <seealso
- marker="ssh_connection#exec-4">ssh_connection:exec/4 </seealso>
- </item>
+ <item><p>This message requests that the server starts
+ execution of the given command. This event is sent as a result of calling <seealso
+ marker="ssh_connection#exec-4">ssh_connection:exec/4 </seealso>.
+ </p></item>
</taglist>
</item>
</taglist>
@@ -183,80 +201,83 @@
<func>
<name>adjust_window(ConnectionRef, ChannelId, NumOfBytes) -> ok</name>
- <fsummary>Adjusts the SSH flowcontrol window. </fsummary>
+ <fsummary>Adjusts the SSH flow control window.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id() </v>
- <v> NumOfBytes = integer()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>NumOfBytes = integer()</v>
</type>
<desc>
- <p>Adjusts the SSH flowcontrol window. This shall be done by both client and server side channel processes.</p>
+ <p>Adjusts the SSH flow control window. This is to be done by both the
+ client- and server-side channel processes.</p>
- <note><p>Channels implemented with the <seealso marker="ssh_channel"> ssh_channel
- behavior</seealso> will normaly not need to call this function as flow control
- will be handled by the behavior. The behavior will adjust the window every time
+ <note><p>Channels implemented with the <seealso marker="ssh_channel"> ssh_channel</seealso>
+ behavior do not normally need to call this function as flow control
+ is handled by the behavior. The behavior adjusts the window every time
the callback <seealso marker="ssh_channel#Module:handle_ssh_msg-2">
- handle_ssh_msg/2 </seealso> has returned after processing channel data</p> </note>
+ handle_ssh_msg/2</seealso> returns after processing channel data.</p></note>
</desc>
</func>
<func>
<name>close(ConnectionRef, ChannelId) -> ok</name>
- <fsummary>Sends a close message on the channel <c>ChannelId</c>. </fsummary>
+ <fsummary>Sends a close message on the channel <c>ChannelId</c>.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
</type>
<desc>
- <p>A server or client channel process can choose to close their session by sending a close event.
+ <p>A server- or client-channel process can choose to close their session by
+ sending a close event.
</p>
- <note><p>This function will be called by the ssh_channel
- behavior when the channel is terminated see <seealso
- marker="ssh_channel"> ssh_channel(3) </seealso> so channels implemented with the
- behavior should not call this function explicitly.</p></note>
+ <note><p>This function is called by the <c>ssh_channel</c>
+ behavior when the channel is terminated, see <seealso
+ marker="ssh_channel"> ssh_channel(3) </seealso>. Thus, channels implemented
+ with the behavior are not to call this function explicitly.</p></note>
</desc>
</func>
<func>
- <name>exec(ConnectionRef, ChannelId, Command, TimeOut) -> ssh_request_status() | {error, reason()} </name>
- <fsummary>Request that the server start the execution of the given command. </fsummary>
+ <name>exec(ConnectionRef, ChannelId, Command, TimeOut) -> ssh_request_status() |
+ {error, reason()}</name>
+ <fsummary>Requests that the server starts the execution of the given command.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
- <v> Command = string()</v>
- <v>Timeout = timeout() </v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>Command = string()</v>
+ <v>Timeout = timeout()</v>
</type>
<desc>
- <p>Should be called by a client channel process to request that the server starts execution of the
- given command, the result will be several messages according to the following pattern. Note
- that the last message will be a channel close message, as the exec request is a one time
- execution that closes the channel when it is done.</p>
+ <p>Is to be called by a client-channel process to request that the server starts
+ executing the given command. The result is several messages according to the
+ following pattern. The last message is a channel close message, as the <c>exec</c>
+ request is a one-time execution that closes the channel when it is done.</p>
<taglist>
- <tag><c> N x {ssh_cm, ssh_connection_ref(),
- {data, ssh_channel_id(), ssh_data_type_code(), binary() = Data}} </c></tag>
- <item>The result of executing the command may be only one line
- or thousands of lines depending on the command.</item>
+ <tag><c>N x {ssh_cm, ssh_connection_ref(),
+ {data, ssh_channel_id(), ssh_data_type_code(), binary() = Data}}</c></tag>
+ <item><p>The result of executing the command can be only one line
+ or thousands of lines depending on the command.</p></item>
<tag><c>0 or 1 x {ssh_cm, ssh_connection_ref(), {eof, ssh_channel_id()}}</c></tag>
- <item>Indicates that no more data will be sent.</item>
+ <item><p>Indicates that no more data is to be sent.</p></item>
<tag><c>0 or 1 x {ssh_cm,
ssh_connection_ref(), {exit_signal,
ssh_channel_id(), string() = ExitSignal, string() = ErrorMsg, string() = LanguageString}}</c></tag>
- <item>Not all systems send signals. For details on valid string
- values see RFC 4254 section 6.10 </item>
+ <item><p>Not all systems send signals. For details on valid string
+ values, see RFC 4254, Section 6.10</p></item>
<tag><c>0 or 1 x {ssh_cm, ssh_connection_ref(), {exit_status,
ssh_channel_id(), integer() = ExitStatus}}</c></tag>
- <item>It is recommended by the <c>ssh connection protocol</c> that this
- message shall be sent, but that may not always be the case.</item>
+ <item><p>It is recommended by the SSH Connection Protocol to send this
+ message, but that is not always the case.</p></item>
- <tag><c> 1 x {ssh_cm, ssh_connection_ref(),
+ <tag><c>1 x {ssh_cm, ssh_connection_ref(),
{closed, ssh_channel_id()}}</c></tag>
- <item>Indicates that the ssh channel started for the
- execution of the command has now been shutdown.</item>
+ <item><p>Indicates that the <c>ssh_channel</c> started for the
+ execution of the command has now been shut down.</p></item>
</taglist>
</desc>
</func>
@@ -265,78 +286,72 @@
<name>exit_status(ConnectionRef, ChannelId, Status) -> ok</name>
<fsummary>Sends the exit status of a command to the client.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
- <v> Status = integer()</v>
+ <v>ConnectionRef = ssh_connection_ref() </v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>Status = integer()</v>
</type>
<desc>
- <p>Should be called by a server channel process to sends the exit status of a command to the client.</p>
+ <p>Is to be called by a server-channel process to send the exit status of a command
+ to the client.</p>
</desc>
</func>
<func>
- <name>ptty_alloc(ConnectionRef, ChannelId, Options) -> </name>
- <name>ptty_alloc(ConnectionRef, ChannelId, Options, Timeout) -> > ssh_request_status() | {error, reason()} </name>
- <fsummary>Send status replies to requests that want such replies. </fsummary>
+ <name>ptty_alloc(ConnectionRef, ChannelId, Options) -></name>
+ <name>ptty_alloc(ConnectionRef, ChannelId, Options, Timeout) -> > ssh_request_status() |
+ {error, reason()}</name>
+ <fsummary>Sends an SSH Connection Protocol <c>pty_req</c>,
+ to allocate a pseudo-terminal.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
- <v> Options = proplists:proplist()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>Options = proplists:proplist()</v>
</type>
<desc>
- <p> Sends a SSH Connection Protocol pty_req, to allocate a pseudo tty.
- Should be called by a SSH client process.
- Options are:
- </p>
+ <p>Sends an SSH Connection Protocol <c>pty_req</c>, to allocate a pseudo-terminal.
+ Is to be called by an SSH client process.</p>
+ <p>Options:</p>
<taglist>
<tag>{term, string()}</tag>
- <item>
- Defaults to os:getenv("TERM") or "vt100" if it is undefined.
- </item>
+ <item><p>Defaults to <em>os:getenv("TERM")</em> or <em>vt100</em>
+ if it is undefined.</p></item>
+
<tag>{width, integer()}</tag>
- <item>
- Defaults to 80 if pixel_width is not defined.
- </item>
+ <item><p>Defaults to 80 if <c>pixel_width</c> is not defined.</p></item>
+
<tag>{height, integer()}</tag>
- <item>
- Defaults to 24 if pixel_height is not defined.
- </item>
+ <item><p>Defaults to 24 if <c>pixel_height</c> is not defined.</p></item>
+
<tag>{pixel_width, integer()}</tag>
- <item>
- Is disregarded if width is defined.
- </item>
+ <item><p>Is disregarded if <c>width</c> is defined.</p></item>
+
<tag>{pixel_height, integer()}</tag>
- <item>
- Is disregarded if height is defined.
- </item>
+ <item><p>Is disregarded if <c>height</c> is defined.</p></item>
+
<tag>{pty_opts, [{posix_atom(), integer()}]}</tag>
- <item>
- Option may be an empty list, otherwise
- see possible POSIX names in section 8 in <url href="http://www.ietf.org/rfc/rfc4254.txt"> RFC 4254</url>.
+ <item><p>Option can be an empty list. Otherwise, see possible <em>POSIX</em> names
+ in Section 8 in <url href="http://www.ietf.org/rfc/rfc4254.txt"> RFC 4254</url>.</p>
</item>
</taglist>
-
</desc>
</func>
- <func>
+ <func>
<name>reply_request(ConnectionRef, WantReply, Status, ChannelId) -> ok</name>
- <fsummary>Send status replies to requests that want such replies. </fsummary>
+ <fsummary>Sends status replies to requests that want such replies.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> WantReply = boolean()</v>
- <v> Status = ssh_request_status() </v>
- <v> ChannelId = ssh_channel_id()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>WantReply = boolean()</v>
+ <v>Status = ssh_request_status()</v>
+ <v>ChannelId = ssh_channel_id()</v>
</type>
<desc>
<p>Sends status replies to requests where the requester has
- stated that they want a status report e.i .<c> WantReply = true</c>,
- if <c> WantReply</c> is false calling this function will be a
- "noop". Should be called while handling an ssh connection
- protocol message containing a <c>WantReply</c> boolean
- value.
- </p>
+ stated that it wants a status report, that is, <c>WantReply = true</c>.
+ If <c>WantReply</c> is <c>false</c>, calling this function becomes a
+ "noop". Is to be called while handling an SSH Connection
+ Protocol message containing a <c>WantReply</c> boolean value.</p>
</desc>
</func>
@@ -346,98 +361,97 @@
<name>send(ConnectionRef, ChannelId, Type, Data) -></name>
<name>send(ConnectionRef, ChannelId, Type, Data, TimeOut) ->
ok | {error, timeout} | {error, closed}</name>
- <fsummary>Sends channel data </fsummary>
+ <fsummary>Sends channel data.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
- <v> Data = binary()</v>
- <v> Type = ssh_data_type_code()</v>
- <v> Timeout = timeout()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>Data = binary()</v>
+ <v>Type = ssh_data_type_code()</v>
+ <v>Timeout = timeout()</v>
</type>
<desc>
- <p>Should be called by client- and server channel processes to send data to each other.
+ <p>Is to be called by client- and server-channel processes to send data to each other.
</p>
</desc>
</func>
<func>
<name>send_eof(ConnectionRef, ChannelId) -> ok | {error, closed}</name>
- <fsummary>Sends eof on the channel <c>ChannelId</c>. </fsummary>
+ <fsummary>Sends EOF on channel <c>ChannelId</c>.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
</type>
<desc>
- <p>Sends eof on the channel <c>ChannelId</c>.
- </p>
+ <p>Sends EOF on channel <c>ChannelId</c>.</p>
</desc>
</func>
<func>
- <name>session_channel(ConnectionRef, Timeout) -> </name>
+ <name>session_channel(ConnectionRef, Timeout) -></name>
<name>session_channel(ConnectionRef, InitialWindowSize,
MaxPacketSize, Timeout) -> {ok, ssh_channel_id()} | {error, reason()}</name>
- <fsummary>Opens a channel for a ssh session. </fsummary>
+ <fsummary>Opens a channel for an SSH session.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref()</v>
- <v> InitialWindowSize = integer() </v>
- <v> MaxPacketSize = integer() </v>
- <v> Timeout = timeout()</v>
- <v> Reason = term() </v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>InitialWindowSize = integer()</v>
+ <v>MaxPacketSize = integer()</v>
+ <v>Timeout = timeout()</v>
+ <v>Reason = term()</v>
</type>
<desc>
<p>Opens a channel for an SSH session. The channel id returned from this function
- is the id used as input to the other funtions in this module.
- </p>
+ is the id used as input to the other functions in this module.</p>
</desc>
</func>
<func>
- <name>setenv(ConnectionRef, ChannelId, Var, Value, TimeOut) -> ssh_request_status() | {error, reason()} </name>
- <fsummary> Environment variables may be passed to the
+ <name>setenv(ConnectionRef, ChannelId, Var, Value, TimeOut) -> ssh_request_status() |
+ {error, reason()}</name>
+ <fsummary>Environment variables can be passed to the
shell/command to be started later.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
- <v> Var = string()</v>
- <v> Value = string()</v>
- <v> Timeout = timeout()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>Var = string()</v>
+ <v>Value = string()</v>
+ <v>Timeout = timeout()</v>
</type>
<desc>
- <p> Environment variables may be passed before starting the
- shell/command. Should be called by a client channel processes.
- </p>
+ <p>Environment variables can be passed before starting the
+ shell/command. Is to be called by a client channel processes.</p>
</desc>
</func>
<func>
<name>shell(ConnectionRef, ChannelId) -> ssh_request_status() | {error, closed}
</name>
- <fsummary> Requests that the user's default shell (typically
- defined in /etc/passwd in UNIX systems) shall be executed at the server
- end. </fsummary>
+ <fsummary>Requests that the user default shell (typically defined in
+ /etc/passwd in Unix systems) is to be executed at the server end.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
</type>
<desc>
- <p> Should be called by a client channel process to request that the user's default shell (typically
- defined in /etc/passwd in UNIX systems) shall be executed at the server end.
- </p>
+ <p>Is to be called by a client channel process to request that the user default
+ shell (typically defined in /etc/passwd in Unix systems) is executed
+ at the server end.</p>
</desc>
</func>
<func>
- <name>subsystem(ConnectionRef, ChannelId, Subsystem, Timeout) -> ssh_request_status() | {error, reason()} </name>
- <fsummary> </fsummary>
+ <name>subsystem(ConnectionRef, ChannelId, Subsystem, Timeout) -> ssh_request_status() |
+ {error, reason()}</name>
+ <fsummary>Requests to execute a predefined subsystem on the server.</fsummary>
<type>
- <v> ConnectionRef = ssh_connection_ref() </v>
- <v> ChannelId = ssh_channel_id()</v>
- <v> Subsystem = string()</v>
- <v> Timeout = timeout()</v>
+ <v>ConnectionRef = ssh_connection_ref()</v>
+ <v>ChannelId = ssh_channel_id()</v>
+ <v>Subsystem = string()</v>
+ <v>Timeout = timeout()</v>
</type>
<desc>
- <p> Should be called by a client channel process for requesting to execute a predefined subsystem on the server.
+ <p>Is to be called by a client-channel process for requesting to execute a predefined
+ subsystem on the server.
</p>
</desc>
</func>