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       eftp - ISDN EUROFILE file transfer client


       eftp [ -i ISDN_NO ] [ -x X25_ADDRESS ] [ -u USER[/PASSWORD] ] [-p] [-h]


       eftp is a simple EUROFILE transfer client  with  a  command  line  user
       interface roughly resembling the ftp client.

       Novice users are initially recommended to invoke eftp as

            eftp -i ISDN_NO -u USER


       -i ISDN_NO
              ISDN  number  of  the remote EUROFILE server to connect to.  The
              client will try to set up an isdn connection to this number  and
              an X.25 DTE-DTE connection on top of this.

       -x X25_ADDRESS
              directly  specify  the X.25 address used for setting up the X.25
              connection. For eftp to work, an X.25  route  for  that  address
              must  already  be  present.  The  X.25  route  must  point to an
              isdn4linux network interface that  is  configured  for  outgoing
              connections  to a destination EUROFILE server. The encapsulation
              of the interface must be "x25iface", l2_prot must be x75i.

              If neither -i nor -x option is specified, the behavior  is  like
              an empty string -x option ( as if called like  "eftp -x ’’" )

       -u USER[/PASSWORD]
              The  user  identity used to login to the remote EUROFILE server.
              The password can be appended to the user id seperated by  a  ’/’
              character.  If  no  ’/’  is  present  in the parameter of the -u
              option, eftp will prompt for a password.

              Entering the password on the command line allows other users  to
              spoof  the  password,  e.g.  by  means  of  the  ps command. The
              password might also leave other traces,  e.g.  in  your  shell’s
              history  file. Thus, DON’T include the passwd in the -u argument
              on machines where this is a concern (e.g. when  untrusted  users
              have shell accounts on the machine).

              If  the  -u  option  is  missing,  the  client will try to login
              without a user id (some servers will  treat  this  as  anonymous

       -p     suppress prompting for a password even if the argument to the -u
              option does not contain a password. This is useful for  accounts
              on EUROFILE servers without password protection.

       -h     print a help message to stdout.


       If invoked with the -i option, eftp will try its best to create and set
       up all related isdn interfaces automatically and to remove  them  after
       the end of the session. In order to undo the setup after the end of the
       session reliably (i.e. even when the eftp process crashes), eftp  forks
       a  child  process which is in charge of processing the eurofile session
       while taking care itself only for supervising the isdn connection setup
       and undoing all temporary isdn configurations after the child exits.

       However,  the  control  and  configuration of isdn connections requires
       certain privileges (netadmin capability, write access to /dev/isdnctrl;
       debian users need to be in the "dialout" group).

       To  overcome this problem, eftp now has special support to execute suid
       root. To take advantage of this, make root the owner of the eftp binary
       and  set  the  suid  bit.   This  is not done as standard in the debian
       package because it is better to put authorized  users  in  the  dialout

       WARNING/DISCLAIMER:  suid  programs  are  inherently  dangerous because
       potential bugs in the programme, the kernel or standard libraries might
       be  exploitable  to  gain  root priviliges. If this is a concern, don’t
       install eftp suid root. If installed suid root, also consider to  clear
       the  world executable bit of the eftp binary and to change its group to
       a group of trusted users who are allowed to  execute  the  setuid  eftp

       eftp  will  change  the  uid  of  the forked child process (which is in
       charge of the protocol procession) to the (less priviliged)  real  user
       id  of  the  caller as soon as possible. Only the parent process, which
       does not interact with the user directly and needs more  priviliges  in
       order  to clean up the isdn setup, continues to run suid root. The real
       userid of the parent will be switched to the effective userid (root).

       A suid root eftp will not allow all  users  to  set  up  eurofile  isdn
       connections. eftp checks whether the user has write permissions for the
       /dev/ttyI0 special file.  Only  if  this  check  is  passed,  the  isdn
       connection  will be set up. This algorithm ensures that only users, who
       are already permitted to set up isdn connections  by  other  means  (by
       writing  AT  commands  to  /dev/ttyI0), can set up isdn connections for


       When eftp has established the connection, it issues the "eftp>"  prompt
       and  waits  for  commands  that  will  be read from standard input.  If
       configured before compilation, interactive input can be edited by means
       of the GNU readline library.

       The following commands are recognised:

       Commands for Listing and Transferring Files

       dir [PATTERN]

              This  corresponds  to  ETS  300-075  and ETS 300-383 T-DIRECTORY
              primitive. It prints a list of files contained  in  the  current
              working  directory  (ETSI  calls  it  the  "current filestore").
              PATTERN is a pattern as defined in ETS  300-075  and  selects  a
              subset  of  those files to be displayed. ETS 300-075 pattern are
              different from shell wildcard or regular  expressions,  but  the
              pattern  "*"  matches  all  filenames  as  you’d expect. I won’t
              explain further pattern rules here because  most  servers  don’t
              recognise any patterns different from "*" anyway.

              If pattern is omitted, the * pattern is assumed.

              Pattern  applies  to  the  EUROFILE  transfer name of the files,
              which is not necessarily identical to the filename itself.

              Likewise,  the  output  of  the   command  does  not  list   the
              filenames,  but  the  transfer  names  of the files and the file
              length. Note that only regular files  are  listed.  For  listing
              subdirectories, there are the list and slist commands.

       xdir [PATTERN]

              This  is  similar  to the dir command but requests the directory
              contents in extended format. In addition to the  transfer  name,
              this  will  also  contain the real name of the file and the time
              stamp of the last write access.

              Note that  not  all  servers  support  directory  requests  with
              extended  format.  Some  of  those  servers  will respond with a
              normal directory contents file, others will reject the  request.
              In  the  former  case, eftp will issue a warning message and use
              the transfer name for the file name and use  1970-01-01  as  the
              last  access  date.  (The  eftp4linux  server  supports extended
              directory formats).


              This corresponds to the  300-075 T-LOAD primitive and  tries  to
              load the file identified by TRANSFER_NAME from the remote server
              and stores it locally using PATH_NAME  as  the  destination.  If
              PATH_NAME   is  omitted,  TRANSFER_NAME  is  also  used  as  the
              destination name.


              This corresponds to the ETS 300-075 T-SAVE primitive  and  tries
              to  upload  the local file identified by PATH_NAME to the remote
              server, using TRANSFER_NAME as the destination.  If PATH_NAME is
              omitted,  TRANSFER_NAME  is  also  used as to identify the local

       mget PATTERN

              get multiple files whose transfer names match  PATTERN.  PATTERN
              is  (currently) interpreted a shell glob pattern, not an ETS 300
              075 pattern.

       mput PATTERN

              put  multiple  files  whose  names  match  PATTERN.  PATTERN  is
              interpreted a shell glob pattern, not an ETS 300 075 pattern.

              NOTE:  The  matched  name is also used as the transfer name.  If
              pattern matched local files whose file name do not form a  valid
              ETS  300-383  transfer  name,  the transfer of those files might

       prompt [on|off]

              If "on", prior to each file transferred by  mput  or  mget,  the
              user  is prompted for confirmation. If no parameter is given the
              on/off value is toggled.

              Possible user responses to the prompt:

              y    transfer the file
              n    don’t transfer the file and prompt for the next one

       case [on|off]

              If "off", cases are ignored when matching PATTERN  in  mget  and
              mput.   If parameter is missing, toggle current parameter value.

              This currently does nor work with all versions of libc.

       Navigation Commands (related to directories)

       These commands are likely to fail because many  servers  don’t  support
       the navigation facility. (The eftp4linux server, however, supports this

       cd [DIRECTORY]

              This changes the current working directory ("current filestore")
              to  DIRECTORY.  If  DIRECTORY  is omitted, the default directory
              (this is the one initially entered when logged  in)  is  changed

              This  command  is  likely  to  fail  because  many servers don’t
              support the navigation facility.

       pwd     This prints the name of the server’s current working  directory
              ("current filestore") to stdout.

       slist   This corresponds to the  300-383 S-LIST primitive.  It prints a
              list of the subdirectories  contained  in  the  current  working
              directory.  The  list  items  consist  of a so called file store
              reference followed  by  the  filestore  (directory)  name.  (The
              eftp4linux  server  supports  this, but the filestore references
              are currently not generated totally norm conforming.)

       list    This corresponds to the ETS  300-383  LIST  primitive.   It  is
              similar  to  the  slist  command,  but  prints  a  list  of  all
              directories of the server. (Even the eftp4linux server does  not
              support this).

       Misc Commands

       msg MESSAGE

              The MESSAGE string is send literally to the remote server if the
              server supports it (most servers won’t)  by  means  of  the  ETS
              300-075 T-TYPED_DATA primitive.

              If  MESSAGE  is ommitted, the client will prompt for the message
              string (can currently cause problems as protocol  precessing  is
              currently not performed whil waiting for the user input).

       lcd DIR

              change local working directory to DIR


              execute COMMAND-STRING as a shell command.

       quit     This will quit the EUROFILE session, close the connection, and
              exit the eftp programme.


       manpage   written   from   usage   text   file   by    Paul    Slootman