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Linux 2.6 - man page for ct_telnet (linux section 3erl)

ct_telnet(3erl) 		     Erlang Module Definition			  ct_telnet(3erl)

       ct_telnet - Common Test specific layer on top of telnet client ct_telnet_client.erl.

       Common Test specific layer on top of telnet client ct_telnet_client.erl

       Use this module to set up telnet connections, send commands and perform string matching on
       the result. See the unix_telnet manual page for information about how  to  use  ct_telnet,
       and configure connections, specifically for unix hosts.

       The following default values are defined in ct_telnet:

	  Connection timeout = 10 sec (time to wait for connection)
	  Command timeout = 10 sec (time to wait for a command to return)
	  Max no of reconnection attempts = 3
	  Reconnection interval = 5 sek (time to wait in between reconnection attempts)
	  Keep alive = true (will send NOP to the server every 10 sec if connection is idle)

       These parameters can be altered by the user with the following configuration term:

	  {telnet_settings, [{connect_timeout,Millisec},

       Millisec = integer(), N = integer()

       Enter  the telnet_settings term in a configuration file included in the test and ct_telnet
       will retrieve the information automatically. Note that keep_alive  may  be  specified  per
       connection if required. See unix_telnet for details.

	 connection()  =  handle()  |  {target_name()  (see module ct), connection_type()} | tar-
	 get_name() (see module ct) :

	 connection_type() = telnet | ts1 | ts2 :

	 handle() = handle() (see module ct_gen_conn) :

	   Handle for a specific telnet connection.

	 prompt_regexp() = string() :

	   A regular expression which matches all possible prompts for a specific type of target.
	   The	regexp	must not have any groups i.e. when matching, re:run/3 shall return a list
	   with one single element.

       close(Connection) -> ok | {error, Reason}

	      Types  Connection = connection() (see module ct_telnet)

	      Close the telnet connection and stop the process managing it.

	      A connection may be associated with a target name and/or a  handle.  If  Connection
	      has no associated target name, it may only be closed with the handle value (see the
	      open/4 function).

       cmd(Connection, Cmd) -> {ok, Data} | {error, Reason}

	      Equivalent to cmd(Connection, Cmd, DefaultTimeout) .

       cmd(Connection, Cmd, Timeout) -> term()

       cmdf(Connection, CmdFormat, Args) -> {ok, Data} | {error, Reason}

	      Equivalent to cmdf(Connection, CmdFormat, Args, DefaultTimeout) .

       cmdf(Connection, CmdFormat, Args, Timeout) -> term()

       cont_log(Str, Args) -> term()

       end_log() -> term()

       expect(Connection, Patterns) -> term()

	      Equivalent to expect(Connections, Patterns, []) .

       expect(Connection, Patterns, Opts) -> {ok, Match} | {ok, MatchList, HaltReason} |  {error,

	      Types  Connection = connection() (see module ct_telnet)
		     Patterns = Pattern | [Pattern]
		     Pattern = string() | {Tag, string()} | prompt | {prompt, Prompt}
		     Prompt = string()
		     Tag = term()
		     Opts = [Opt]
		     Opt = {timeout, Timeout} | repeat | {repeat, N} | sequence | {halt, HaltPat-
		     terns} | ignore_prompt
		     Timeout = integer()
		     N = integer()
		     HaltPatterns = Patterns
		     MatchList = [Match]
		     Match = RxMatch | {Tag, RxMatch} | {prompt, Prompt}
		     RxMatch = [string()]
		     HaltReason = done | Match
		     Reason = timeout | {prompt, Prompt}

	      Get data from telnet and wait for the expected pattern.

	      Pattern can be a POSIX regular expression. If more than one pattern is  given,  the
	      function returns when the first match is found.

	      RxMatch  is  a  list of matched strings. It looks like this: [FullMatch, SubMatch1,
	      SubMatch2, ...] where FullMatch is the string matched by the whole regular  expres-
	      sion  and  SubMatchN is the string that matched subexpression no N . Subexpressions
	      are denoted with '(' ')' in the regular expression

	      If a Tag is given, the returned Match will also include the  matched  Tag  .  Else,
	      only RxMatch is returned.

	      The  function  will  always return when a prompt is found, unless the ignore_prompt
	      options is used.

	      The timeout option indicates that the function shall return if the telnet client is
	      idle  (i.e.  if  no  data  is received) for more than Timeout milliseconds. Default
	      timeout is 10 seconds.

	      The repeat option indicates that the pattern(s) shall be matched multiple times. If
	      N  is  given,  the pattern(s) will be matched N times, and the function will return
	      with HaltReason = done .

	      The sequence option indicates that all patterns shall be matched in a  sequence.	A
	      match will not be concluded untill all patterns are matched.

	      Both  repeat  and  sequence  can	be interrupted by one or more HaltPatterns . When
	      sequence or repeat is used, there will always be a MatchList returned, i.e. a  list
	      of Match instead of only one Match . There will also be a HaltReason returned.

	      expect(Connection,[{abc,"ABC"},{xyz,"XYZ"}], [sequence,{halt,[{nnn,"NNN"}]}]).
	      will  try  to  match  "ABC" first and then "XYZ", but if "NNN" appears the function
	      will return {error,{nnn,["NNN"]}} . If both "ABC" and "XYZ" are matched, the  func-
	      tion will return {ok,[AbcMatch,XyzMatch]} .

	      expect(Connection,[{abc,"ABC"},{xyz,"XYZ"}], [{repeat,2},{halt,[{nnn,"NNN"}]}]).
	      will  try  to match "ABC" or "XYZ" twice. If "NNN" appears the function will return
	      with HaltReason = {nnn,["NNN"]} .

	      The repeat and sequence options can be combined in order to match a sequence multi-
	      ple times.

       get_data(Connection) -> {ok, Data} | {error, Reason}

	      Types  Connection = connection() (see module ct_telnet)
		     Data = [string()]

	      Get  all	data  which has been received by the telnet client since last command was

       open(Name) -> {ok, Handle} | {error, Reason}

	      Equivalent to open(Name, telnet) .

       open(Name, ConnType) -> {ok, Handle} | {error, Reason}

	      Types  Name = target_name()
		     ConnType = connection_type() (see module ct_telnet)
		     Handle = handle() (see module ct_telnet)

	      Open a telnet connection to the specified target host.

       open(KeyOrName, ConnType, TargetMod) -> {ok, Handle} | {error, Reason}

	      Equivalent to open(KeyOrName, ConnType, TargetMod, []) .

       open(KeyOrName, ConnType, TargetMod, Extra) -> {ok, Handle} | {error, Reason}

	      Types  KeyOrName = Key | Name
		     Key = atom()
		     Name = target_name() (see module ct)
		     ConnType = connection_type()
		     TargetMod = atom()
		     Extra = term()
		     Handle = handle()

	      Open a telnet connection to the specified target host.

	      The target data must exist in a configuration file. The connection may  be  associ-
	      ated  with either Name and/or the returned Handle . To allocate a name for the tar-
	      get, use ct:require/2 in a test case, or use a require statement in the suite  info
	      function	(  suite/0 ), or in a test case info function. If you want the connection
	      to be associated with Handle only (in case you need to open multiple connections to
	      a  host  for example), simply use Key , the configuration variable name, to specify
	      the target. Note that a connection that has no associated target name can  only  be
	      closed with the handle value.

	      TargetMod  is a module which exports the functions connect(Ip,Port,KeepAlive,Extra)
	      and get_prompt_regexp() for the given TargetType (e.g. unix_telnet ).

       send(Connection, Cmd) -> ok | {error, Reason}

	      Types  Connection = connection() (see module ct_telnet)
		     Cmd = string()

	      Send a telnet command and return immediately.

	      The resulting output from the command can be read with get_data/1 or expect/2/3 .

       sendf(Connection, CmdFormat, Args) -> ok | {error, Reason}

	      Types  Connection = connection() (see module ct_telnet)
		     CmdFormat = string()
		     Args = list()

	      Send a telnet command and return immediately (uses a format string and  a  list  of
	      arguments to build the command).



					common_test 1.5.3			  ct_telnet(3erl)

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